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Pan RL, Tan QQ, Liao X, Xie LX, Qin SY, Tang YL, Lan CJ. Effect of decentration and tilt on the in vitro optical quality of monofocal and trifocal intraocular lenses. Graefes Arch Clin Exp Ophthalmol 2024:10.1007/s00417-024-06490-1. [PMID: 38643424 DOI: 10.1007/s00417-024-06490-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 04/09/2024] [Accepted: 04/11/2024] [Indexed: 04/22/2024] Open
Abstract
PURPOSE To evaluate and compare the effect of decentration and tilt on the optical quality of monofocal and trifocal intraocular lenses (IOL). METHODS Optical quality of a monofocal IOL (AcrySof IQ SN60WF; Alcon Laboratories, Inc., USA) and a trifocal IOL (AcrySof IQ PanOptix; Alcon Laboratories, Inc., USA) was assessed using an in vitro optical bench (OptiSpheric IOL R&D; Trioptics GmbH, Germany). At apertures of 3.0 mm and 4.5 mm, modulation transfer function (MTF) at spatial frequency of 50 lp/mm, MTF curve and the United States Air Force (USAF) resolution test chart of the two IOLs were measured and compared at their focus with different degrees of decentration and tilt. Optical quality at infinity, 60 cm and 40 cm and the through-focus MTF curves were compared when the two IOLs were centered at apertures of 3.0 mm and 4.5 mm. Spectral transmittance of the two IOLs was measured by the UV-visible spectrophotometer (UV 3300 PC; MAPADA, China). RESULTS The SN60WF and the PanOptix filtered blue light from 400 to 500 nm. Both IOLs at the far focus and the PanOptix at the intermediate focus showed a decrease in optical quality with increasing decentration and tilt. The PanOptix demonstrated enhanced optical quality compared to the previous gradient at the near focus at a decentration range of 0.3-0.7 mm with a 3.0 mm aperture, and 0.5 mm with a 4.5 mm aperture, whereas other conditions exhibited diminished optical quality with increasing decentration and tilt at the focus of both IOLs. When the two IOLs were centered, the SN60WF had better optical quality at infinity, while the PanOptix had better optical quality at 60 cm and 40 cm defocus. The optical quality of the SN60WF exceeded that of the PanOptix at far focus, with a 3 mm aperture decentration up to 0.7 mm and a 4.5 mm aperture decentration up to 0.3 mm; this observation held true for all tilts, irrespective of aperture size. As both decentration and tilt increased, the optical quality of the SN60WF deteriorated more rapidly than that of the PanOptix at the far focal point. CONCLUSIONS The SN60WF showed a decrease in optical quality with increasing decentration and tilt. Optical quality of the PanOptix at the near focus increased in some decentration conditions and decreased in some conditions, while it showed a decrease at the other focuses with increasing decentration. While tilt only had a negative effect on optical quality. When both IOLs were centered, the PanOptix provided a wider range of vision, while the SN60WF provided better far distance vision. At the far focus, the SN60WF has better resistance to tilt than the PanOptix, but the optical quality degrades more quickly when decentered and tilted.
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Affiliation(s)
- Ruo-Lin Pan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Qing-Qing Tan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Xuan Liao
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Li-Xuan Xie
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Su-Yun Qin
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Yu-Ling Tang
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Chang-Jun Lan
- Chengdu Eastern Aier Eye Hospital, 388 Shuang Lin Road, Chengdu, 610051, Sichuan, China.
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Wang J, Wang SZ, Qin XL, Chen M, Zhang HM, Liu X, Xiang MJ, Hu JB, Huang HY, Lan CJ. Algorithm of automatic identification of diabetic retinopathy foci based on ultra-widefield scanning laser ophthalmoscopy. Int J Ophthalmol 2024; 17:610-615. [PMID: 38638262 PMCID: PMC10988084 DOI: 10.18240/ijo.2024.04.02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 01/15/2024] [Indexed: 04/20/2024] Open
Abstract
AIM To propose an algorithm for automatic detection of diabetic retinopathy (DR) lesions based on ultra-widefield scanning laser ophthalmoscopy (SLO). METHODS The algorithm utilized the FasterRCNN (Faster Regions with CNN features)+ResNet50 (Residua Network 50)+FPN (Feature Pyramid Networks) method for detecting hemorrhagic spots, cotton wool spots, exudates, and microaneurysms in DR ultra-widefield SLO. Subimage segmentation combined with a deeper residual network FasterRCNN+ResNet50 was employed for feature extraction to enhance intelligent learning rate. Feature fusion was carried out by the feature pyramid network FPN, which significantly improved lesion detection rates in SLO fundus images. RESULTS By analyzing 1076 ultra-widefield SLO images provided by our hospital, with a resolution of 2600×2048 dpi, the accuracy rates for hemorrhagic spots, cotton wool spots, exudates, and microaneurysms were found to be 87.23%, 83.57%, 86.75%, and 54.94%, respectively. CONCLUSION The proposed algorithm demonstrates intelligent detection of DR lesions in ultra-widefield SLO, providing significant advantages over traditional fundus color imaging intelligent diagnosis algorithms.
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Affiliation(s)
- Jie Wang
- Aier Eye Hospital (East of Chengdu), Chengdu 610051, Sichuan Province, China
| | - Su-Zhen Wang
- Department of Ophthalmology, Chengdu First People's Hospital, Chengdu 610095, Sichuan Province, China
| | - Xiao-Lin Qin
- Aier Eye Hospital (East of Chengdu), Chengdu 610051, Sichuan Province, China
| | - Meng Chen
- Aier Eye Hospital (East of Chengdu), Chengdu 610051, Sichuan Province, China
| | - Heng-Ming Zhang
- School of Computer and Artificial Intelligence, Southwest Jiaotong University, Chengdu 610097, Sichuan Province, China
| | - Xin Liu
- Aier Eye Hospital (East of Chengdu), Chengdu 610051, Sichuan Province, China
| | - Meng-Jun Xiang
- Aier Eye Hospital (East of Chengdu), Chengdu 610051, Sichuan Province, China
| | - Jian-Bin Hu
- Chengdu Aier Eye Hospital, Chengdu 610041, Sichuan Province, China
| | - Hai-Yu Huang
- School of Computer and Artificial Intelligence, Southwest Jiaotong University, Chengdu 610097, Sichuan Province, China
| | - Chang-Jun Lan
- Aier Eye Hospital (East of Chengdu), Chengdu 610051, Sichuan Province, China
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Li XY, Liao X, Lin J, Lan CJ, Tan QQ. Effect of optional biometric parameters in the Kane formula on intraocular lens power calculation. PLoS One 2023; 18:e0289033. [PMID: 37616217 PMCID: PMC10449110 DOI: 10.1371/journal.pone.0289033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 07/07/2023] [Indexed: 08/26/2023] Open
Abstract
PURPOSE To investigate the effect of the optional biometric parameters lens thickness (LT) and center corneal thickness (CCT) in the Kane formula on intraocular lens (IOL) power calculation. METHODS A cross-sectional study included consecutive cataract patients who received uncomplicated cataract surgery with IOL implantation from May to September 2022 were enrolled. The ocular biometric parameters were obtained using IOLMaster 700 and then inputted into online Kane formula calculator. The IOL power was calculated for targeting emmetropia and compared between groups: not omitting (NO) group, omitting LT and CCT (OLC) group, omitting LT (OL) group and omitting CCT (OC) group. Further, according to the axial length (AL), anterior chamber depth (ACD), and mean keratometry (Km), the eyes were divided into three subgroups, respectively. RESULTS 1005 eyes of 1005 consecutive patients were included. There was no significant difference in IOL power between NO group and OC group (P = 0.064), and the median absolute difference (MedAD) was 0.05D. The IOL power in NO group showed significant differences from OLC group and OL group respectively (P < 0.001), and both MedAD values were 0.18D. Among AL subgroups, MedAD ranged from 0.06D to 0.35D in short eyes. Among ACD subgroups, the above values ranged from 0.06D to 0.23D in shallow ACD subgroup. Among Km subgroups, these values ranged from 0.05D to 0.31D in steep Km subgroup. CONCLUSION The optional biometric parameter CCT has no effect on the calculation results of the Kane formula, whereas the parameter LT has a great influence on the Kane formula results for the IOL power calculation in cataract patients with short AL, shallow ACD and steep Km.
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Affiliation(s)
- Xiao-Yu Li
- Department of Ophthalmology of Affiliated Hospital, North Sichuan Medical College, Nanchong, China
- Department of Ophthalmology of Nanchong Central Hospital, The Second Clinical College, North Sichuan Medical College, Nanchong, China
| | - Xuan Liao
- Department of Ophthalmology of Affiliated Hospital, North Sichuan Medical College, Nanchong, China
| | - Jia Lin
- Department of Ophthalmology of Affiliated Hospital, North Sichuan Medical College, Nanchong, China
| | | | - Qing-Qing Tan
- Department of Ophthalmology of Affiliated Hospital, North Sichuan Medical College, Nanchong, China
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Mao YM, Lan CJ, Tan QQ, Zhou GM, Xiang XL, Lin J, Liao X. All-trans retinoic acid regulates the expression of MMP-2 and TGF-β2 via RDH5 in retinal pigment epithelium cells. Int J Ophthalmol 2023; 16:849-854. [PMID: 37332553 PMCID: PMC10250953 DOI: 10.18240/ijo.2023.06.03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 04/12/2023] [Indexed: 06/20/2023] Open
Abstract
AIM To investigate the effect of all-trans retinoic acid (ATRA) on retinol dehydrogenase 5 (RDH5), matrix metalloproteinase-2 (MMP-2) and transforming growth factor-β2 (TGF-β2) transcription levels, and the effect of RDH5 on MMP-2 and TGF-β2 in retinal pigment epithelium (RPE) cells. METHODS After adult RPE cell line-19 (ARPE-19 cells) intervened with gradient concentrations of ATRA (0-20 µmol/L) for 24h, flow cytometry was used to detect the proliferation and apoptosis of cells in each group, and quantitative real-time polymerase chain reaction (qRT-PCR) was used to detect RDH5, MMP-2 and TGF-β2 mRNA expression. Then, after ARPE-19 cells transfected with three different siRNA targets for 48h, the RDH5 knockdown efficiency of each group and expression of MMP-2 and TGF-β2 mRNA within them was detected by qRT-PCR. RESULTS Flow cytometry results showed that ATRA could inhibit the proliferation of RPE cells and promote the apoptosis of RPE cells, and the difference of apoptosis was statistically significant when the ATRA concentration exceeded 5 µmol/L and compared with the normal control group (P=0.027 and P=0.031, respectively). qRT-PCR results showed that ATRA could significantly inhibit the expression level of RDH5 mRNA (P<0.001) and promote the expression of MMP-2 and TGF-β2 mRNA (P=0.03 and P<0.001, respectively) in a dose-dependent manner, especially when treated with 5 µmol/L ATRA. The knockdown efficiency of RDH5 siRNA varies with different targets, among which RDH5 siRNA-435 had the highest knockdown efficiency, i.e., more than 50% lower than that of the negative control group (P=0.02). When RDH5 was knocked down for 48h, the results of qRT-PCR showed that the expressions of MMP-2 and TGF-β2 mRNA were significantly up-regulated (P<0.001). CONCLUSION ATRA inhibits the expression of RDH5 and promotes MMP-2 and TGF-β2, and further RDH5 knockdown significantly upregulates MMP-2 and TGF-β2. These findings suggest that RDH5 may be involved in an epithelial-mesenchymal transition of RPE cells mediated by ATRA.
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Affiliation(s)
- Yu-Mei Mao
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
- Medical School of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - Chang-Jun Lan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
- Medical School of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - Qing-Qing Tan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
- Medical School of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - Gui-Mei Zhou
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
- Medical School of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - Xiao-Ling Xiang
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
- Medical School of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - Jia Lin
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
- Medical School of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - Xuan Liao
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
- Medical School of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
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Li Y, Tan QQ, Liao X, Lan CJ. Implantation of extended depth of focus intraocular lenses in bilateral electric cataract: A case report. Asian J Surg 2022; 46:2109-2111. [PMID: 36504154 DOI: 10.1016/j.asjsur.2022.11.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 11/11/2022] [Indexed: 12/13/2022] Open
Affiliation(s)
- Yan Li
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, Sichuan Province, China; Medical School of Ophthalmology & Optometry, North Sichuan Medical College, Nanchong, 637000, Sichuan Province, China
| | - Qing-Qing Tan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, Sichuan Province, China; Medical School of Ophthalmology & Optometry, North Sichuan Medical College, Nanchong, 637000, Sichuan Province, China
| | - Xuan Liao
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, Sichuan Province, China; Medical School of Ophthalmology & Optometry, North Sichuan Medical College, Nanchong, 637000, Sichuan Province, China
| | - Chang-Jun Lan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, Sichuan Province, China; Medical School of Ophthalmology & Optometry, North Sichuan Medical College, Nanchong, 637000, Sichuan Province, China.
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Tan QQ, Lewis JS, Lan CJ, Liao X, Tang XL, Wang J, Aljohani S, Scheiman MM. Cataract surgery is not associated with post-operative binocular vision anomalies in age-related cataract patients. Ophthalmic Physiol Opt 2022; 42:998-1008. [PMID: 35690924 PMCID: PMC9378533 DOI: 10.1111/opo.13012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 04/30/2022] [Accepted: 05/02/2022] [Indexed: 11/26/2022]
Abstract
PURPOSE To compare the binocular vision status of patients pre- and post-cataract surgery, and to investigate the risk factors for patients who develop binocular vision anomalies post-surgery. METHODS A prospective study of patients (≥50 years) who elected to undergo bilateral cataract surgery was implemented. A comprehensive binocular vision test battery including stereopsis, ocular alignment, fusional vergence, vergence facility, near point of convergence and the Convergence Insufficiency Symptom Survey (CISS) was administered before the first surgery and at the third visit after surgery on the second eye. A detailed diagnostic classification protocol was applied to identify the presence of binocular vision anomalies pre- and post-surgery. RESULTS Seventy-three participants were included at baseline, 24 (33%) of whom were diagnosed with non-strabismic binocular vision anomalies (NSBVA), mainly convergence insufficiency (18/73, 25%). Fifty-one participants completed the post-operative evaluation, 17 (33%) of whom had NSBVA pre-surgery and 13 (26%) post-surgery (p = 0.48). There were a number of conversions from NSBVA to normal binocular vision and vice versa. Logistic regression showed that the adjusted odds ratio of pre-existing NSBVA diagnosis for predicting the risk of post-operative NSBVA was 6.37 (p < 0.01). There were no significant changes in most binocular vision measures post-surgery, except for a significant improvement in the CISS score (p < 0.01, Cohen's d = 0.83). CONCLUSIONS Binocular vision anomalies, especially convergence insufficiency, are prevalent in the age-related cataract population. Cataract surgery does not appear to be a significant risk factor for the development of new binocular vision anomalies. A pre-existing binocular vision anomaly is the main risk factor for predicting a post-operative binocular vision anomaly in this population.
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Affiliation(s)
- Qing-Qing Tan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Medical School of Ophthalmology & Optometry, North Sichuan Medical College, Nanchong, Sichuan, China
- Graduate Programs in Biomedicine, Salus University, Elkins Park, Pennsylvania, USA
| | - James S Lewis
- Pennsylvania College of Optometry at Salus University, Elkins Park, Pennsylvania, USA
| | - Chang-Jun Lan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Medical School of Ophthalmology & Optometry, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Xuan Liao
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Medical School of Ophthalmology & Optometry, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Xiao-Li Tang
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Jingyun Wang
- State University of New York College of Optometry, New York, New York, USA
| | - Saeed Aljohani
- Department of Optometry, College of Applied Medical Sciences, Qassim University, Saudi Arabia
| | - Mitchell M Scheiman
- Pennsylvania College of Optometry at Salus University, Elkins Park, Pennsylvania, USA
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Qian JL, Liao X, Tang YL, Tan QQ, Zhou GM, Lan CJ. [Comparative study of decentration, tilt and visual quality after implantation of aspherical intraocular lenses]. Zhonghua Yan Ke Za Zhi 2022; 58:521-528. [PMID: 35796125 DOI: 10.3760/cma.j.cn112142-20211103-00518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To compare the difference of decentration and tilt among 4 kinds of aspherical intraocular lenses (IOLs), and to analyze their objective visual quality. Methods: Prospective non-randomized controlled clinical trial. Age-related cataract patients who planned to undergo phacoemulsification and IOL implantation in the Affiliated Hospital of North Sichuan Medical College from April to June in 2020 were divided into ZCB00 group, SN60WF group, A1-UV group, and AO group according to IOL types. Thirty right eyes and thirty left eyes were selected in each group. Before operation and at 1 day, 1 week and 1 month postoperatively, decentration and tilt values were measured by a new swept-source anterior-segment optical coherence tomography device (CASIA2), and wavefront aberrations, objective scatter index (OSI), modulation transfer function cut off frequency (MTF cut off) and Strehl ratio (SR) were also examined. Values of decentration, tilt and visual quality compared among 4 groups were took from the right eye. One-way analysis of variance was used for inter-group comparison, and repeated measurement one-way analysis of variance was used for intra-group comparison. Data between right eyes and left eyes from all the individuals were compared by independent sample t-test. Results: A total of 181 patients (240 eyes) were enrolled, and 169 patients (224 eyes) completed the follow-up (114 right eyes and 110 left eyes). There were 77 males and 92 females, with an age of (69±9) years. There was no significant difference in gender, age, axial length, decentration and tilt of crystalline lens and IOL power among 4 groups (all P>0.05). At 1 day, 1 week and 1 month postoperatively, there was significant difference in decentration value among 4 groups (F=7.11, 6.12, 4.66; all P<0.05). For further pairwise comparison, the decentration value of SN60WF group was higher than that of the other 3 groups at 1 day and 1 week postoperatively, and the decentration value of SN60WF group was (0.259±0.101) mm at 1 month postoperatively, which was higher than that of ZCB00 group (0.177±0.099) mm and AO group (0.163±0.122) mm, and the differences were statistically significant (using SNK-q test, both P<0.05). The IOL tilt value in the ZCB00 group, SN60WF group, A1-UV group, and AO group at 1 month postoperatively were (4.806±1.129)°, (5.080±1.309)°, (4.586±1.338)°, (5.112±1.406)°, respectively. No significant difference in tilt value among 4 groups was found at any time after surgery (all P>0.05). In each group, there was no significant difference in decentration and tilt value at different postoperative time points (all P>0.05). At 1 month postoperatively, there was no significant difference in decentration and tilt at horizontal and vertical directions respectively among 4 groups (all P>0.05), and in each group, there was no significant difference in decentration and tilt value between right eyes and left eyes (all P>0.05), and IOLs tended to tilt towards the inferonasal or inferotemporal direction in both eyes. With 4-mm and 6-mm pupil diameter, there was significant difference in internal (F=131.32, 85.17) and ocular (F=46.64, 47.55) spherical aberration among 4 groups (all P<0.01). For further pairwise comparison, the spherical aberration of AO group was higher than that of the other 3 groups, and the difference was statistically significant (using SNK-q test, all P<0.05). There was no significant difference in OSI, MTF cut off and SR among 4 groups (all P>0.05). Conclusions: The four types of IOLs show decentration and tilt in varying degrees after implantation in the capsular bag, but this difference do not lead to clinical significance. Human eyes have tolerance to mild decentration and tilt of aspheric IOLs, showing good visual quality.
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Affiliation(s)
- J L Qian
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Medical School of Ophthalmology & Optometry, North Sichuan Medical College, Nanchong 637001, China
| | - X Liao
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Medical School of Ophthalmology & Optometry, North Sichuan Medical College, Nanchong 637001, China
| | - Y L Tang
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Medical School of Ophthalmology & Optometry, North Sichuan Medical College, Nanchong 637001, China
| | - Q Q Tan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Medical School of Ophthalmology & Optometry, North Sichuan Medical College, Nanchong 637001, China
| | - G M Zhou
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Medical School of Ophthalmology & Optometry, North Sichuan Medical College, Nanchong 637001, China
| | - C J Lan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Medical School of Ophthalmology & Optometry, North Sichuan Medical College, Nanchong 637001, China
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Tan QQ, Lewis JS, Lan CJ, Liao X, Tang XL, Wang J, Scheiman MM. Preoperative binocular vision characteristics in the age-related cataract population. BMC Ophthalmol 2022; 22:196. [PMID: 35477368 PMCID: PMC9047293 DOI: 10.1186/s12886-022-02418-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 04/25/2022] [Indexed: 12/01/2022] Open
Abstract
Background This study is the first part of the “Binocular Vision Anomalies after Cataract Surgery” study that aimed to investigate the impact of cataract surgery on binocular vision status in adults with age-related cataract. This study aimed to investigate the preoperative binocular vision status of participants with age-related cataract. Methods Patients who elected to undergo bilateral cataract surgery (≥50 years of age) were recruited. Clinical measures of binocular vision including stereopsis, ocular alignment, fusional vergence, vergence facility, convergence amplitude and a symptom survey related to binocular vision anomalies were administered. A detailed classification protocol was established to identify the presence of binocular vision anomalies. The frequency of specific binocular vision anomalies and normative data of binocular vision measures were reported. Results A total of 73 subjects were evaluated. No strabismus was detected in the cohort. Non-strabismic binocular vision anomalies were detected in 24 subjects (32.9%), of whom 18 (24.7%) had convergence insufficiency, 3 (4.1%) had basic exophoria, 2 (2.7%) had convergence excess, and 1 (1.4%) had fusional vergence dysfunction. Decreased vergence facility and convergence amplitude were more common compared to the pre-presbyopes (P < 0.01). Conclusion Binocular vision problems, especially convergence insufficiency, are common in the adults with age-related cataract. The study results demonstrate that the lack of normative binocular vision data for the presbyopic population is a significant gap in the literature and suggest the need for a study of normative data for this population. Trial registration The study was registered at ClinicalTrials.gov (NCT03592615, USA). Supplementary Information The online version contains supplementary material available at 10.1186/s12886-022-02418-7.
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Affiliation(s)
- Qing-Qing Tan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, 1 Mao Yuan South Road, Nanchong, Sichuan, China. .,Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong, Sichuan, China. .,Graduate Programs in Biomedicine, Salus University, Elkins Park, PA, USA.
| | - James S Lewis
- Pennsylvania College of Optometry at Salus University, Elkins Park, PA, USA
| | - Chang-Jun Lan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, 1 Mao Yuan South Road, Nanchong, Sichuan, China.,Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Xuan Liao
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, 1 Mao Yuan South Road, Nanchong, Sichuan, China.,Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Xiao-Li Tang
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, 1 Mao Yuan South Road, Nanchong, Sichuan, China
| | - Jingyun Wang
- State University of New York, College of Optometry, New York, NY, USA
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Liao X, Wang MJ, Tan QQ, Lan CJ. Repeatability of i.Profiler for measuring wavefront aberrations in healthy eyes. Int Ophthalmol 2022; 42:2525-2531. [PMID: 35381898 DOI: 10.1007/s10792-022-02300-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 03/10/2022] [Indexed: 10/18/2022]
Abstract
PURPOSE To evaluate the repeatability of wavefront aberration measurements and the correlation between corneal aberration and pupil size in normal eyes using a wavefront-based autorefractor (i.ProfilerPlus; Carl Zeiss Vision, Germany). METHODS A prospective cross-sectional study. Wavefront aberrations, including spherical aberration (SA) (Z40), coma (Z3-1, Z31), trefoil (Z3-3, Z33) and total higher-order aberrations (tHOA), were measured at different pupil diameters. The repeatability was evaluated using one-way ANOVA method, and statistical indicators including within-subject standard deviation (Sw), test-retest repeatability (TRT), and intra-class correlation coefficient (ICC). The correlations between corneal aberrations and pupil sizes were evaluated by Pearson correlation analysis. RESULTS A total of 96 healthy young volunteers were enrolled. Corneal and ocular higher-order aberrations (HOA) measured by i.Profiler showed Sw < 0.01 μm, TRT < 0.10 μm, ICC > 0.90. There was a linear positive correlation between the corneal HOA and pupil size. The correlation coefficient between SA and tHOA was the largest (r = 0.996, P < 0.001). CONCLUSIONS The measurements of wavefront aberrations by i.Profiler are highly repeatable. Corneal HOA was significantly dependent on pupil size. SA was the most influential aberration for visual quality in this study.
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Affiliation(s)
- Xuan Liao
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, 1 Mao Yuan South Road, Nanchong, Sichuan, China.,Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Mei-Jie Wang
- Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Qing-Qing Tan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, 1 Mao Yuan South Road, Nanchong, Sichuan, China.,Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Chang-Jun Lan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, 1 Mao Yuan South Road, Nanchong, Sichuan, China. .,Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong, Sichuan, China.
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Yang L, Tan QQ, Lan CJ, Liao X. Ophthalmic characteristics of carotid cavernous fistula: a case report. Int J Ophthalmol 2021; 14:952-954. [PMID: 34150555 DOI: 10.18240/ijo.2021.06.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 10/27/2020] [Indexed: 11/23/2022] Open
Affiliation(s)
- Li Yang
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan Province, China.,Department of Ophthalmology & Optometry, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - Qing-Qing Tan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan Province, China.,Department of Ophthalmology & Optometry, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - Chang-Jun Lan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan Province, China.,Department of Ophthalmology & Optometry, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - Xuan Liao
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan Province, China.,Department of Ophthalmology & Optometry, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
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Tan QQ, Tian J, Liao X, Lin J, Wen BW, Lan CJ. Impact of different clear corneal incision sizes on anterior corneal aberration for cataract surgery. Arq Bras Oftalmol 2021; 83:478-484. [PMID: 33470274 DOI: 10.5935/0004-2749.20200089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 11/01/2019] [Indexed: 11/20/2022] Open
Abstract
PURPOSE To investigate the impact of different sizes of steep meridian clear corneal incisions for phacoemul sification on anterior corneal higher-order aberrations. METHODS Medical records of patients who underwent 2.2-mm coaxial micro-incision cataract surgery or 2.75-mm coaxial small-incision cataract surgery were retrospectively reviewed. Only patients with preexisting anterior corneal astigmatism <2.00 diopters (D) and ≥0.50 D who underwent a steep meridian clear corneal incision were included. Primary outcomes were 3rd- to 6th-order anterior corneal higher-order aberrations with an 8-mm pupil. Anterior corneal astigmatism and effective phaco time were evaluated as secondary outcomes. Preoperative and 3-month postoperative outcomes were evaluated. RESULTS Anterior corneal astigmatism significantly decreased after both procedures; however, there was no significant difference found in surgically induced anterior corneal astigmatism between the two procedures (p=0.146). Although the total higher-order aberrations did not significantly change after both procedures, the group comparison showed a significant difference in surgically induced total higher-order aberrations (a decrease of 0.337 ± 1.156 mm in 2.2-mm coaxial micro-incision cataract surgery and an increase of 0.106 ± 0.521 mm in 2.75-mm coaxial small-incision cataract surgery, p=0.046). Spherical aberrations significantly decreased after 2.2-mm coaxial micro-incision cataract surgery (p=0.001), whereas they did not change significantly after 2.75-mm coaxial small-incision cataract surgery (p=0.564). Coma did not significantly change after either of the procedures. Trefoil did not significantly change after 2.2-mm coaxial micro-incision cataract surgery (p=0.361), whereas it significantly increased after 2.75-mm coaxial small-incision cataract surgery (p<0.001). There was no significant difference shown in effective phaco time between the procedures. A significantly positive correlation was shown between surgically induced anterior corneal astigmatism and coma in 2.75-mm coaxial small-incision cataract surgery (r=0.387, p=0.006). There was no significant correlation found between any surgically induced higher-order aberration changes and effective phaco time. CONCLUSIONS The results showed that 2.2-mm coaxial micro-incision cataract surgery and 2.75-mm coaxial small-incision cataract surgery did not significantly degrade the total higher-order aberrations of the anterior cornea. However, the surgically induced changes in total higher-order aberration showed a significant difference between the two procedures, with a slight reduction after 2.2-mm coaxial micro-incision cataract surgery and a slight increase after 2.75-mm coaxial small-incision cataract surgery. Phaco time and power used during surgery had no impact on corneal aberrations.
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Affiliation(s)
- Qing-Qing Tan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College; Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong, China
| | - Jing Tian
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College; Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong, China
| | - Xuan Liao
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College; Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong, China
| | - Jia Lin
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College; Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong, China
| | - Bai-Wei Wen
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College; Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong, China
| | - Chang-Jun Lan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College; Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong, China
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Liao X, Li JY, Tan QQ, Tian J, Lin J, Lan CJ. Comparison of visual quality after implantation of A1-UV and SN60WF aspheric intraocular lens. Int J Ophthalmol 2020; 13:1727-1732. [PMID: 33215002 DOI: 10.18240/ijo.2020.11.07] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 08/27/2020] [Indexed: 12/22/2022] Open
Abstract
AIM To compare the visual performance of pseudophakic eyes implanted with A1-UV and SN60WF aspheric intraocular lens (IOL), and to investigate the correlations between visual quality parameters and pupil size. METHODS This prospective comparative study included 105 eyes of 90 patients with age-related cataract who underwent uneventful phacoemulsification. The subjects were divided into two groups according to the implanted IOL type. Three months postoperatively, visual acuity and contrast sensitivity were measured, wave-front aberrations were assessed using a KR-1W aberrometer (Topcon), and objective optical quality parameters were performed using an optical quality analysis system-OQAS II (Visiometrics). Independent sample t-test and Spearman correlation analysis were used for data analysis. RESULTS There were no significant differences found in visual acuity, contrast sensitivity and visual quality parameters between the two groups (P>0.05). The measured intraocular spherical aberration (SA) in A1-UV IOL eyes of -0.19±0.05 µm was close to the designed SA value of -0.20 µm. The modulation transfer function cutoff, Strehl ratio and OQAS values were negatively correlated with pupil size in both groups (P<0.01). CONCLUSION The subjective and objective visual quality in pseudophakic eyes with A1-UV and SN60WF IOLs are comparable. For aspheric IOL eyes, visual quality decreases with increasing pupil size.
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Affiliation(s)
- Xuan Liao
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan Province, China.,Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - Ji-Yun Li
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan Province, China.,Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China.,Department of Ophthalmology, the First People's Hospital of Neijiang, Neijiang 641000, Sichuan Province, China
| | - Qing-Qing Tan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan Province, China.,Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - Jing Tian
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan Province, China.,Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - Jia Lin
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan Province, China.,Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - Chang-Jun Lan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan Province, China.,Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
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Liao X, Peng Y, Liu B, Tan QQ, Lan CJ. Agreement of ocular biometric measurements in young healthy eyes between IOLMaster 700 and OA-2000. Sci Rep 2020; 10:3134. [PMID: 32081868 PMCID: PMC7035253 DOI: 10.1038/s41598-020-59919-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 01/30/2020] [Indexed: 12/15/2022] Open
Abstract
This prospective cross-sectional study aimed to evaluate the agreement of two new biometers for measuring ocular biometric parameters in young healthy eyes. Ocular biometric parameters were measured using IOLMaster 700 and OA-2000. Power vector analyses of Cartesian (J0) and oblique (J45) components of corneal astigmatism were performed. The right eyes of 103 healthy volunteers were analyzed. The 95% limits of agreement ranged from −0.03 to 0.03 mm, −0.08 to 0.07 mm, −0.18 to 0.18 diopters (D), −1.09 to 1.16 D, −1.18 to 1.15 D for axial length (AL), anterior chamber depth (ACD), mean keratometry, J0 and J45 respectively, which were all comparable between the two biometers, while significant differences were detected in lens thickness (LT), central corneal thickness (CCT), white-to-white (WTW) and pupil diameter (PD). Predicted intraocular lens (IOL) powers were comparable between the two biometers by Haigis and Barrett Universal II formulas, while not by SRK/T, Hoffer Q and Holladay 2. Excepting CCT, WTW and PD meaurements, IOLMaster 700 and OA-2000 have excellent agreement on ocular biometric measurements and astigmatism power vectors, which provides more options for ocular biometric measurements and enables constant optimization for IOL power calculation.
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Affiliation(s)
- Xuan Liao
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China.,Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong, China
| | - Yue Peng
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China.,Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong, China
| | - Bo Liu
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China.,Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong, China
| | - Qing-Qing Tan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China.,Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong, China
| | - Chang-Jun Lan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China. .,Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong, China.
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Liao X, Tan QQ, Lan CJ. Myopia genetics in genome-wide association and post-genome-wide association study era. Int J Ophthalmol 2019; 12:1487-1492. [PMID: 31544047 DOI: 10.18240/ijo.2019.09.18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 05/21/2019] [Indexed: 12/20/2022] Open
Abstract
Genome-wide association studies (GWAS) of myopia and refractive error have generated exciting results and identified novel risk-associated loci. However, the interpretation of the findings of GWAS of complex diseases is not straightforward and has remained challenging. This review provides a brief summary of the main focus on the advantages and limitations of GWAS of myopia, with potential strategies that may contribute to further insight into the genetics of myopia in the post-GWAS or omics era.
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Affiliation(s)
- Xuan Liao
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College; Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - Qing-Qing Tan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College; Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - Chang-Jun Lan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College; Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
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Liao X, Lin J, Tian J, Wen B, Tan Q, Lan C. Evaluation of Optical Quality: Ocular Scattering and Aberrations in Eyes Implanted with Diffractive Multifocal or Monofocal Intraocular Lenses. Curr Eye Res 2018; 43:696-701. [PMID: 29630420 DOI: 10.1080/02713683.2018.1449220] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
PURPOSE To compare objective optical quality, ocular scattering and aberrations of eyes implanted with an aspheric monofocal intraocular lens (IOL) or an aspheric apodized diffractive multifocal IOL three months after surgery. METHODS Prospective consecutive nonrandomized comparative cohort study. A total of 80 eyes from 57 cataract patients were bilaterally or unilaterally implanted with monofocal (AcrySof IQ SN60WF) or multifocal (AcrySof IQ ReSTOR SN6AD1) IOLs. Respectively, 40 eyes of 27 patients were implanted with monofocal IOLs, and 40 eyes of 30 patients were implanted with multifocal IOLs. Ocular high-order aberration (HOA) values were obtained using Hartmann-Shack aberrometer; objective scatter index (OSI), modulation transfer function (MTF) cutoff, Strehl ratio (SR), and contrast visual acuity OV at 100%, 20%, and 9% were measured using Objective Quality Analysis System II (OQAS II). RESULTS Ocular aberrations performed similar in both groups (p > 0.05). However, significantly higher values of OSI and lower values of MTF cutoff, SR and OV were found in the SN6AD1 group (p < 0.05). CONCLUSIONS Both ocular scattering and wave-front aberrations play essential role in retinal image quality, which may be overestimated when only aberrations were taken into account. Combining the effect of ocular scattering with HOA will result in a more accurate assessment of the visual and optical quality.
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Affiliation(s)
- Xuan Liao
- a Department of Ophthalmology , Affiliated Hospital of North Sichuan Medical College , Nanchong , Sichuan Province , China.,b Department of Ophthalmology and Optometry , North Sichuan Medical College , Nanchong , Sichuan Province , China
| | - Jia Lin
- a Department of Ophthalmology , Affiliated Hospital of North Sichuan Medical College , Nanchong , Sichuan Province , China.,b Department of Ophthalmology and Optometry , North Sichuan Medical College , Nanchong , Sichuan Province , China
| | - Jing Tian
- a Department of Ophthalmology , Affiliated Hospital of North Sichuan Medical College , Nanchong , Sichuan Province , China.,b Department of Ophthalmology and Optometry , North Sichuan Medical College , Nanchong , Sichuan Province , China
| | - BaiWei Wen
- a Department of Ophthalmology , Affiliated Hospital of North Sichuan Medical College , Nanchong , Sichuan Province , China.,b Department of Ophthalmology and Optometry , North Sichuan Medical College , Nanchong , Sichuan Province , China
| | - QingQing Tan
- a Department of Ophthalmology , Affiliated Hospital of North Sichuan Medical College , Nanchong , Sichuan Province , China.,b Department of Ophthalmology and Optometry , North Sichuan Medical College , Nanchong , Sichuan Province , China
| | - ChangJun Lan
- a Department of Ophthalmology , Affiliated Hospital of North Sichuan Medical College , Nanchong , Sichuan Province , China.,b Department of Ophthalmology and Optometry , North Sichuan Medical College , Nanchong , Sichuan Province , China
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Liao X, Lan CJ. [Advances in genome-wide association study of myopia]. Zhonghua Yan Ke Za Zhi 2016; 52:794-800. [PMID: 27760653 DOI: 10.3760/cma.j.issn.0412-4081.2016.10.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
As the results of both environmental and genetic factors, myopia is one of the most popular refractive errors in the world. In recent years, progressive achievements have been made in genome-wide association study (GWAS) of myopia and refractive error. A lot of susceptibility loci and regions have been found, which means the researches on genetic basis of myopia and refractive error entered a new stage. This review summarized the main advances, and indicated the possible directions of genetic studies of myopia and refractive error in the future. (Chin J Ophthalmol, 2016, 52: 794-800).
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Affiliation(s)
- X Liao
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637000, China
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Liao X, Lan C, Liao D, Tian J, Huang X. Exploration and detection of potential regulatory variants in refractive error GWAS. Sci Rep 2016; 6:33090. [PMID: 27604318 PMCID: PMC5015044 DOI: 10.1038/srep33090] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 08/19/2016] [Indexed: 11/19/2022] Open
Abstract
Refractive error (RE) is a complex multifactorial disease. Genome-wide association studies (GWAS) have provided significant insight into the genetic architecture and identified plenty of robust genetic variations or single nucleotide polymorphisms (SNPs) associated with complex disease. A major current challenge is to convert those resources into causal variants and target genes. We used RegulomeDB and HaploReg to annotate regulatory information onto associated SNPs derived from the two largest RE GWAS, and additional SNPs in linkage disequilibrium (LD) with GWAS significant SNPs. Overall 868 SNPs were investigated, out of which 662 returned RegulomeDB scores of 1 to 6. It was observed that 36 out of those SNPs show strong evidence of regulatory effects with a RegulomeDB score of 1, while only four of them were GWAS significant SNPs (CD55/rs1652333, CNDP2/rs12971120, RDH5/rs3138142 and rs3138144). The results encourage us to explore those putative pathogenic variants, both GWAS significant SNPs as well as the SNPs in LD, for future discernment of functional consequence. This study offers the attractive approach for prioritizing potential functional variants by combining ENCODE data and GWAS information, and provide further insights into the pathogenesis and mechanism and ultimately therapeutics.
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Affiliation(s)
- Xuan Liao
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637007, Sichuan Province, China
- Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637007, Sichuan Province, China
| | - ChangJun Lan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637007, Sichuan Province, China
- Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637007, Sichuan Province, China
| | - Dan Liao
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637007, Sichuan Province, China
- Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637007, Sichuan Province, China
| | - Jing Tian
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637007, Sichuan Province, China
- Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637007, Sichuan Province, China
| | - XiuQi Huang
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637007, Sichuan Province, China
- Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637007, Sichuan Province, China
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Liao X, Lan CJ, Cheuk IWY, Tan QQ. Four complement factor H gene polymorphisms in association with AMD: A meta-analysis. Arch Gerontol Geriatr 2016; 64:123-9. [PMID: 26852301 DOI: 10.1016/j.archger.2016.01.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 01/21/2016] [Accepted: 01/22/2016] [Indexed: 11/17/2022]
Abstract
AIM To investigate the possible association between CFH gene polymorphisms -543G>A (rs1410996), A473A (rs2274700), -257C>T (rs3753394), IVS15 (rs1329428) and AMD risk. METHODS We searched the published literature in the Medline and Scopus from inception to May 2015. A meta-analysis was performed by the programs RevMan 5.1 and Stata 12.0, and the Pooled odds ratio (OR) with 95% confidence interval (CI) was calculated in fixed or random effect model based on heterogeneity test among studies. RESULTS Nineteen studies with a total of 10,676 subjects were included in the present meta-analysis. A statistical significant association was observed between AMD risk and CFH -543G>A polymorphism with OR of 1.77 (95% CI, 1.47-2.12), 2.24 (95% CI, 1.71-2.94), 0.49 (95% CI, 0.38-0.62) and 0.25 (95% CI, 0.18-0.37) in additive, dominant, recessive and codominant models, respectively. Similar results were obtained in polymorphisms A473A, -257C>T, IVS15. Furthermore, stratified analysis for ethnicity showed a significantly strong association between -543G>A, A473A polymorphisms and AMD risk. CONCLUSION The present meta-analysis suggested that CFH -543G>A, A473A, -257C>T, and IVS15 polymorphisms might be moderately associated with AMD risk. This conclusion warrants confirmation by further studies.
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Affiliation(s)
- Xuan Liao
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637007, Sichuan Province, China; Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637007, Sichuan Province, China
| | - Chang-Jun Lan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637007, Sichuan Province, China; Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637007, Sichuan Province, China.
| | - Isabella-Wai-Yin Cheuk
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hunghom, Hong Kong, China
| | - Qing-qing Tan
- Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637007, Sichuan Province, China; Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637007, Sichuan Province, China
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Liao X, Yang XB, Liao M, Lan CJ, Liu LQ. Association between lumican gene -1554 T/C polymorphism and high myopia in Asian population: a meta-analysis. Int J Ophthalmol 2013; 6:696-701. [PMID: 24195052 DOI: 10.3980/j.issn.2222-3959.2013.05.28] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Accepted: 05/24/2013] [Indexed: 11/02/2022] Open
Abstract
AIM To investigate the association between lumican gene -1554 T/C polymorphism and high myopia susceptibility. METHODS We searched the published literature in the Medline, Embase, and CBM databases from inception to July 2013. A meta-analysis was performed by the programs RevMan 5.1 and Stata 12.0, and the odds ratio (OR) with 95% confidence interval (CI) was calculated in fixed or random effect model based on heterogeneity test among studies. RESLUTS Seven case-control studies with a total of 1 233 cases and 936 controls were included. A statistical significant association with high myopia was observed in the recessive model (TT vs CT+CC: OR=1.92; 95%CI=1.14-3.23) and codominant model (TT vs CT: OR=1.81, 95%CI=1.19-2.75). CONCLUSION The present meta-analysis suggested that lumican -1554 T/C polymorphism might be moderately associated with high myopia susceptibility. This conclusion warrants confirmation by further studies.
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Affiliation(s)
- Xuan Liao
- Department of Ophthalmology, West China School of Medicine, Sichuan University, Chengdu 610041, Sichuan Province, China ; Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637007, Sichuan Province, China
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Lan CJ, Luk HN, Wu CT, Chang WK, Tsou MY, Lui PW, Lee TY. Bilateral pulmonary edema after endoscopic sympathectomy in a patient with glucose-6-phosphate dehydrogenase deficiency. Acta Anaesthesiol Scand 2001; 45:123-6. [PMID: 11152024 DOI: 10.1034/j.1399-6576.2001.450119.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Transaxillary endoscopic sympathectomy of thoracic ganglia (T2-T3) has recently gained wider acceptance as the treatment of choice for palmar hyperhidrosis. It requires one-lung ventilation to facilitate the surgery. One-lung ventilation, however, is not without complications, among which acute pulmonary edema has been reported. In this case report, we present a patient with palmar hyperhidrosis complicated by glucose-6-phosphate dehydrogenase (G-6-PD) deficiency, who received bilateral endoscopic sympathectomy under alternate one-lung anesthesia, and developed acute pulmonary edema immediately after recruitment of the successive collapsed lung. The effects of hypoxemia, G-6-PD deficiency and sympathectomy might all add to the development of acute pulmonary edema secondary to reexpansion of each individual lung after alternate one-lung ventilation. The possibilities of the inferred causes are herein discussed.
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Affiliation(s)
- C J Lan
- Department of Anesthesiology, Veterans General Hospital-Taipei, School of Medicine, National Yang-Ming University, Taiwan, ROC.
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Tsao CM, Yuan HB, Neu SH, Lan CJ, Hu JS, Lui PW, Lee TY. Postoperative pulmonary edema after cervical spine surgery--a case report. Acta Anaesthesiol Sin 1999; 37:147-50. [PMID: 10609348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
Injury of the cervical spine may cause serious complications and neurological sequelae. Recently, a patient with C1-2 spinal cord compression developed pulmonary edema postoperatively associated with unstable hemodynamics, which might result from overzealous fluid administration in order to correct neurogenic shock during anesthesia. Therefore, early recognition and timely use of vasoconstrictors, together with judicious fluid replacement are important in the anesthetic management of patients with cervical spine injury undergoing surgery. In addition, the placement of pulmonary artery catheter is crucial for assessing the cardiac function and fluid status.
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Affiliation(s)
- C M Tsao
- Department of Anesthesiology, Veterans General Hospital-Taipei, Taiwan, R.O.C
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