1
|
Bunod R, Tahiri Joutei Hassani R, Robin M, Liang H, Rabut G, Baudouin C, Labbé A. Evaluation of pterygium severity with en face anterior segment optical coherence tomography and correlations with in vivo confocal microscopy. J Fr Ophtalmol 2021; 44:1362-1369. [PMID: 34384622 DOI: 10.1016/j.jfo.2021.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 03/11/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE To describe en face anterior segment optical coherence tomography (EF-OCT) characteristics of pterygia and their correlation with in vivo confocal microscopy (IVCM). PATIENTS AND METHODS In this observational case series, we prospectively included 21 eyes of 17 subjects with pterygium. All subjects underwent detailed ophthalmic examination, anterior segment photography, an ocular surface disease index (OSDI) questionnaire, IVCM, and EF-OCT. Eyes were divided into two groups according to pterygium severity (Modified Pterygium Classification System) and OSDI score. EF-OCT images for both groups were analyzed for surface area of Fuchs Patches (FP). The IVCM activity score was based on the number of inflammatory cells, blood vessels, activated keratocytes and the appearance of the cornea/pterygium at the head of the pterygium. The correlations between EF-OCT and IVCM images were then analyzed and compared in both groups. RESULTS EF-OCT permits clear visualization and evaluation of FPs and the border between the pterygium and the adjacent cornea. The severe pterygium group was characterized by irregular borders and larger FPs (0.13±0.06 mm2 versus 0.06±0.02 mm2 respectively) (P=0.003). The mean IVCM activity score was 2.36±0.81 in the severe pterygium group and 1.2±0.42 in the mild pterygium group (P=0.0013). There was a positive correlation between FP surface area and IVCM activity score. A larger FP surface area was associated with a higher activity score on IVCM. CONCLUSION EF-OCT allows good evaluation of pterygium extension, borders and FP surface area. EF-OCT analysis of pterygium could represent a simple, non-invasive and reproducible method to evaluate pterygium severity and activity.
Collapse
Affiliation(s)
- R Bunod
- Department of Ophthalmology 3, Quinze-Vingts National Ophthalmology Hospital, 28, rue de Charenton, 75012 Paris, France; CHNO des Quinze-Vingts, IHU FOReSIGHT, INSERM-DGOS CIC 1423, 17, rue Moreau, 75012 Paris, France.
| | | | - M Robin
- Department of Ophthalmology 3, Quinze-Vingts National Ophthalmology Hospital, 28, rue de Charenton, 75012 Paris, France; CHNO des Quinze-Vingts, IHU FOReSIGHT, INSERM-DGOS CIC 1423, 17, rue Moreau, 75012 Paris, France
| | - H Liang
- Department of Ophthalmology 3, Quinze-Vingts National Ophthalmology Hospital, 28, rue de Charenton, 75012 Paris, France; CHNO des Quinze-Vingts, IHU FOReSIGHT, INSERM-DGOS CIC 1423, 17, rue Moreau, 75012 Paris, France; Sorbonne Université, INSERM, CNRS, Institut de la Vision, 17, rue Moreau, 75012 Paris, France
| | - G Rabut
- CHNO des Quinze-Vingts, IHU FOReSIGHT, INSERM-DGOS CIC 1423, 17, rue Moreau, 75012 Paris, France
| | - C Baudouin
- Department of Ophthalmology 3, Quinze-Vingts National Ophthalmology Hospital, 28, rue de Charenton, 75012 Paris, France; CHNO des Quinze-Vingts, IHU FOReSIGHT, INSERM-DGOS CIC 1423, 17, rue Moreau, 75012 Paris, France; Sorbonne Université, INSERM, CNRS, Institut de la Vision, 17, rue Moreau, 75012 Paris, France; Department of Ophthalmology, Ambroise Paré Hospital, University of Versailles Saint-Quentin-en-Yvelines, AP-HP, 9, avenue Charles de Gaulle, 92100 Boulogne-Billancourt, France
| | - A Labbé
- Department of Ophthalmology 3, Quinze-Vingts National Ophthalmology Hospital, 28, rue de Charenton, 75012 Paris, France; CHNO des Quinze-Vingts, IHU FOReSIGHT, INSERM-DGOS CIC 1423, 17, rue Moreau, 75012 Paris, France; Sorbonne Université, INSERM, CNRS, Institut de la Vision, 17, rue Moreau, 75012 Paris, France; Department of Ophthalmology, Ambroise Paré Hospital, University of Versailles Saint-Quentin-en-Yvelines, AP-HP, 9, avenue Charles de Gaulle, 92100 Boulogne-Billancourt, France
| |
Collapse
|
2
|
Objective Imaging Diagnostics for Dry Eye Disease. J Ophthalmol 2020; 2020:3509064. [PMID: 32774902 PMCID: PMC7396031 DOI: 10.1155/2020/3509064] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 07/03/2020] [Indexed: 12/14/2022] Open
Abstract
Traditional diagnostic tests for dry eye disease (DED), such as fluorescein tear film break-up time and the Schirmer test, are often associated with poor reproducibility and reliability, which make the diagnosis, follow-up, and management of the disease challenging. Advances in ocular imaging technology enables objective and reproducible measurement of changes in the ocular surface, tear film, and optical quality associated with DED. In this review, the authors will discuss the application of various imaging techniques, such as, noninvasive tear break-up time, anterior segment optical coherence tomography, in vivo confocal microscopy, meibography, interferometry, aberrometry, thermometry, and tear film imager in DED. Many studies have shown these devices to correlate with clinical symptoms and signs of DED, suggesting the potential of these imaging modalities as alternative tests for diagnosis and monitoring of the condition.
Collapse
|
3
|
[Quantitative evaluation of infectious keratitis by anterior segment optical coherence tomography]. J Fr Ophtalmol 2020; 43:731-741. [PMID: 32622634 DOI: 10.1016/j.jfo.2019.11.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 08/27/2019] [Accepted: 11/13/2019] [Indexed: 11/24/2022]
Abstract
The clinical evaluation of infectious keratitis takes place largely through biomicroscopic examination, which presents limitations in the evaluation of the depth of the infiltrate and the exact thickness of the cornea, whether edematous or thinned. In this study, we aim to quantify the human corneal inflammatory response in treated infectious keratitis by anterior segment optical coherence tomography (AS-OCT). Patients with infectious keratitis were recruited prospectively in the ophthalmology department of the military hospital of Rabat between November 2017 and May 2019. Over the study period, 32 patients were included. A standardized scanning protocol was used. The thickness of the infiltrate, when present, and corneal thickness in any area of thinning and any surrounding edematous areas were measured. The various thicknesses gradually decreased over the course of follow-up, providing objective evidence of therapeutic efficacy in the early stages. Improvement in corneal edema and thinning was faster in the early stage. AS-OCT scanning can be used along with slit lamp examination to quantify and objectively follow infectious keratitis.
Collapse
|
4
|
Chu HS, Huang SL, Chen WL. In-Depth Thinking About the Diagnostic Methods and Treatment Strategies for the Corneal Nerves in Ocular Surface Disorders. CURRENT OPHTHALMOLOGY REPORTS 2020. [DOI: 10.1007/s40135-019-00223-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
5
|
Developments in Contact Lens Imaging: New Applications of Optical Coherence Tomography. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9132580] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Optical coherence tomography (OCT) is a high-speed and non-contact optical imaging technology widely used for noninvasive cross-sectional imaging of biological objects. Two main OCT technologies have been developed: time domain and Fourier domain technologies. The latter can be further divided into spectral domain OCT, which uses a broadband light source and a spectrometer as a detector, and swept source OCT, which employs a quickly-rotating laser source. Advances in OCT technology have made it one of the most helpful devices in ophthalmic practice. Fourier OCT has revolutionized imaging of the posterior segment of the eye, as well as of anterior structures and has enhanced the ability to diagnose and manage patients. It provides high-resolution information about the tear film, contact lens (CL), a qualitative and quantitative assessment of the anterior eye that is important in contact lens fitting, and allows possible eye surface changes while wearing contact lenses to be monitored. Potential swept source OCT technology applications include industrial processes of lens design and quality control. In this paper, we describe clinical applications and outline a variety of multifunctional uses of OCT in the field of refractive error correction with contact lenses.
Collapse
|
6
|
Devarajan K, Di Lee W, Ong HS, Lwin NC, Chua J, Schmetterer L, Mehta JS, Ang M. Vessel density and En-face segmentation of optical coherence tomography angiography to analyse corneal vascularisation in an animal model. EYE AND VISION 2019; 6:2. [PMID: 30656178 PMCID: PMC6330743 DOI: 10.1186/s40662-018-0128-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 12/24/2018] [Indexed: 11/10/2022]
Abstract
Background Optical coherence tomography angiography (OCTA) is a novel non-invasive angiography technology that has recently been extensively studied for its utility in anterior segment imaging. In this study, we compared a split-spectrum amplitude decorrelation angiography (SSADA) OCTA and an Complex OCT signal difference angiography [corrected] (CODAA SD) [corrected] OCTA system to current angiographic technique, indocyanine green angiography (ICGA), to assess corneal vascularisation in an animal model. Methods We imaged 16 rabbits, (one eye per animal) with corneal vascularisation using SSADA OCTA (AngioVue; Optovue Inc., USA), CODAA OCTA [corrected] (Angioscan; RS-3000 Nidek Co. Ltd., Japan) and ICGA in the same region of interest of the cornea at successive time-points. We then analysed all scanned images for vessel density measurements and used paired t-tests and Bland-Altman plots to examine for significant differences. The en-face segmentation images from each of the OCTA scans were also extracted and were matched at every 50 μm segmentation to be compared for vessel density at the respective depths. Results Bland-Altman plots revealed a good agreement between all three imaging techniques (P > 0.05) for all vessel density measurements computed, and the ranges of 95% limit of agreement were acceptable from a clinical perspective. No significant difference was reported, with ICGA (μ = 16.52 ± 8.94%) being more comparable to the CODAA [corrected] OCTA (μ = 16.23 ± 9.51%; p = 0.50) than the SSADA OCTA (μ = 17.09 ± 7.34%; p = 0.33) system. Also, a good correlation value (r > 0.9) was obtained when comparing the vessel density measurements of the en-face segmentations between the OCTA systems. Conclusions Comparable vessel density quantification between the two OCTA systems, and with ICGA was obtained. Segmentation analysis of the vasculature at different depths showed varied performance in the two OCTA systems relative to each other. The implications of the study may help to aid in the development of better OCTA algorithms for the anterior segment and its use in clinical translational research.
Collapse
Affiliation(s)
| | - Wen Di Lee
- 1Singapore Eye Research Institute, Singapore, Singapore
| | - Hon Shing Ong
- 1Singapore Eye Research Institute, Singapore, Singapore.,2Singapore National Eye Center, Singapore, Singapore
| | - Nyein C Lwin
- 1Singapore Eye Research Institute, Singapore, Singapore
| | - Jacqueline Chua
- 1Singapore Eye Research Institute, Singapore, Singapore.,3Eye-ACP, Duke-NUS Graduate Medical School, Singapore, Singapore
| | - Leopold Schmetterer
- 1Singapore Eye Research Institute, Singapore, Singapore.,4Department of Clinical Pharmacology, Medical University of Vienna, Vienna, Austria.,5Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria.,6Nanyang Technological University, Singapore, Singapore
| | - Jodhbir S Mehta
- 1Singapore Eye Research Institute, Singapore, Singapore.,2Singapore National Eye Center, Singapore, Singapore.,3Eye-ACP, Duke-NUS Graduate Medical School, Singapore, Singapore.,6Nanyang Technological University, Singapore, Singapore
| | - Marcus Ang
- 1Singapore Eye Research Institute, Singapore, Singapore.,2Singapore National Eye Center, Singapore, Singapore.,3Eye-ACP, Duke-NUS Graduate Medical School, Singapore, Singapore
| |
Collapse
|
7
|
Park YM, Lee JS, Yoo JM, Park JM, Seo SW, Chung IY, Kim SJ. Comparison of anterior segment optical coherence tomography findings in acanthamoeba keratitis and herpetic epithelial keratitis. Int J Ophthalmol 2018; 11:1416-1420. [PMID: 30140650 DOI: 10.18240/ijo.2018.08.26] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 06/05/2018] [Indexed: 11/23/2022] Open
Abstract
This study is to investigate the characteristic features of Acanthamoeba keratitis (AK) that differentiating it from herpetic epithelial keratitis (HEK) using anterior segment optical coherence tomography (AS-OCT). Medical records of three eyes of each AK and herpetic keratitis who had AS-OCT examination were reviewed in this study. Slit-lamp biomicroscopy and AS-OCT was performed on the initial visit and on every follow-up visits in all patients. In all three AK cases, reflective bands in the corneal stroma that correspond to the area of radial keratoneuritis were observed. The depth of the reflective bands varied in each case. After AK treatment, slit-lamp biomicroscopy confirmed that radial keratoneuritis had resolved and AS-OCT confirmed that reflective bands in the corneal stroma had also disappeared in all patients. Unlike the AS-OCT results found in AK, highly reflective HEK lesions were observed only in the subepithelial area, not in the stroma. AS-OCT seems to be helpful analyzing the specific depth of the lesion which enables to distinguish AK from HEK.
Collapse
Affiliation(s)
- Young Min Park
- Department of Ophthalmology, School of Medicine, Gyeongsang National University, Jinju 52727, South Korea.,Gyeongsang National University Changwon Hospital, Samjeongja-ro, Seongsan-gu, Changwon-si, Gyeongsangnam-do 51472, South Korea
| | - Jong Soo Lee
- Department of Ophthalmology, School of Medicine, Pusan National University and Medical Research Institute, Pusan National University Hospital, Pusan 49241, South Korea
| | - Ji-Myong Yoo
- Department of Ophthalmology, School of Medicine, Gyeongsang National University, Jinju 52727, South Korea.,Institute of Health Science, Gyeongsang National University, Jinju 52727, South Korea
| | - Jong Moon Park
- Department of Ophthalmology, School of Medicine, Gyeongsang National University, Jinju 52727, South Korea.,Gyeongsang National University Changwon Hospital, Samjeongja-ro, Seongsan-gu, Changwon-si, Gyeongsangnam-do 51472, South Korea
| | - Seong-Wook Seo
- Department of Ophthalmology, School of Medicine, Gyeongsang National University, Jinju 52727, South Korea.,Institute of Health Science, Gyeongsang National University, Jinju 52727, South Korea
| | - In-Young Chung
- Department of Ophthalmology, School of Medicine, Gyeongsang National University, Jinju 52727, South Korea.,Institute of Health Science, Gyeongsang National University, Jinju 52727, South Korea
| | - Seong Jae Kim
- Department of Ophthalmology, School of Medicine, Gyeongsang National University, Jinju 52727, South Korea.,Institute of Health Science, Gyeongsang National University, Jinju 52727, South Korea
| |
Collapse
|
8
|
Mazlin V, Xiao P, Dalimier E, Grieve K, Irsch K, Sahel JA, Fink M, Boccara AC. In vivo high resolution human corneal imaging using full-field optical coherence tomography. BIOMEDICAL OPTICS EXPRESS 2018; 9:557-568. [PMID: 29552393 PMCID: PMC5854058 DOI: 10.1364/boe.9.000557] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 12/29/2017] [Accepted: 01/04/2018] [Indexed: 05/18/2023]
Abstract
We present the first full-field optical coherence tomography (FFOCT) device capable of in vivo imaging of the human cornea. We obtained images of the epithelial structures, Bowman's layer, sub-basal nerve plexus (SNP), anterior and posterior stromal keratocytes, stromal nerves, Descemet's membrane and endothelial cells with visible nuclei. Images were acquired with a high lateral resolution of 1.7 µm and relatively large field-of-view of 1.26 mm x 1.26 mm - a combination, which, to the best of our knowledge, has not been possible with other in vivo human eye imaging methods. The latter together with a contactless operation, make FFOCT a promising candidate for becoming a new tool in ophthalmic diagnostics.
Collapse
Affiliation(s)
- Viacheslav Mazlin
- Institute Langevin, ESPCI PARIS, PSL Research University, 1 Rue Jussieu, Paris, 75005, France
| | - Peng Xiao
- Institute Langevin, ESPCI PARIS, PSL Research University, 1 Rue Jussieu, Paris, 75005, France
| | - Eugénie Dalimier
- LLTech SAS, 29 Rue du Faubourg Saint Jacques, Paris, 75014, France
| | - Kate Grieve
- Vision Institute/CIC 1423, UPMC-Sorbonne Universities, UMR_S 968/INSERM, U968/CNRS, UMR_7210, 17 Rue Moreau, Paris, 75012, France
- Quinze-Vingts National Eye Hospital, 28 Rue de Charenton, Paris, 75012, France
| | - Kristina Irsch
- Vision Institute/CIC 1423, UPMC-Sorbonne Universities, UMR_S 968/INSERM, U968/CNRS, UMR_7210, 17 Rue Moreau, Paris, 75012, France
- Quinze-Vingts National Eye Hospital, 28 Rue de Charenton, Paris, 75012, France
- Laboratory of Ophthalmic Instrument Development, The Wilmer Eye Institute, The Johns Hopkins University School of Medicine, 600 N Wolfe Street, Baltimore, MD 21287, USA
| | - José-Alain Sahel
- Vision Institute/CIC 1423, UPMC-Sorbonne Universities, UMR_S 968/INSERM, U968/CNRS, UMR_7210, 17 Rue Moreau, Paris, 75012, France
- Quinze-Vingts National Eye Hospital, 28 Rue de Charenton, Paris, 75012, France
- Department of Ophthalmology, University of Pittsburgh School of Medicine, 3550 Terrace Street, Pittsburgh, PA 15213, USA
| | - Mathias Fink
- Institute Langevin, ESPCI PARIS, PSL Research University, 1 Rue Jussieu, Paris, 75005, France
| | - A. Claude Boccara
- Institute Langevin, ESPCI PARIS, PSL Research University, 1 Rue Jussieu, Paris, 75005, France
- LLTech SAS, 29 Rue du Faubourg Saint Jacques, Paris, 75014, France
| |
Collapse
|
9
|
Pinilla Lozano I, López de la Fuente C, Segura F, Orduna Hospital E, Sánchez-Cano A. Evaluation of anterior chamber parameters with spectral-domain optical coherence tomography. Jpn J Ophthalmol 2017; 62:209-215. [PMID: 29188463 DOI: 10.1007/s10384-017-0548-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 10/26/2017] [Indexed: 11/27/2022]
Abstract
PURPOSE To evaluate several anterior chamber parameters in healthy young adults using spectral-domain optical coherence tomography and to describe the repeatability and reproducibility of this method. STUDY DESIGN Prospective clinical study. METHODS Fifty-two eyes of 52 healthy volunteers were enrolled. Manual measurements of the anterior chamber angle (ACA500 and ACA750), angle opening distance (AOD500 and AOD750), angle-to-angle distance (ATA), anterior chamber width (ACW), and lens vault (LV) were obtained. RESULTS The mean nasal ACA500 was 44.87 ± 12.92°; ACA750, 43.94 ± 10.41°; AOD500, 672.54 ± 270.19 µm; AOD750, 881.87 ± 290.55 µm. The mean temporal ACA500 was 41.46 ± 11.20°; ACA750, 41.27 ± 11.31°; AOD500, 603.15 ± 232.28 µm; AOD750, 823.46 ± 308.76 µm. The differences between the corresponding nasal and temporal parameters were statistically significant. The ACW was 11.97 ± 0.42 mm, the ATA was 12.10 ± 0.43 mm, and the LV was 3.71 ± 232.93 µm. The ACA was highly associated with the LV. The intraclass correlation coefficients ranged from 0.984 to 0.999 for the intraobserver repeatability and from 0.966 to 0.998 for the interobserver reproducibility. CONCLUSIONS This study assessed anterior chamber parameters in healthy young adults using spectral-domain optical coherence tomography. This technique reveals the spatial relationships of the ocular structures, provides high-resolution images, and results in high degrees of intraobserver and interobserver repeatabilities.
Collapse
Affiliation(s)
- Isabel Pinilla Lozano
- Department of Surgery, Gynecology and Obstetrics, University of Zaragoza, Zaragoza, Spain.
- Aragon Institute for Health Research (IIS Aragon), Zaragoza, Spain.
- Department of Ophthalmology, Lozano Blesa University Hospital, Zaragoza, Spain.
| | - Carmen López de la Fuente
- Aragon Institute for Health Research (IIS Aragon), Zaragoza, Spain
- Department of Applied Physics, University of Zaragoza, Zaragoza, Spain
| | - Francisco Segura
- Aragon Institute for Health Research (IIS Aragon), Zaragoza, Spain
- Department of Applied Physics, University of Zaragoza, Zaragoza, Spain
| | - Elvira Orduna Hospital
- Aragon Institute for Health Research (IIS Aragon), Zaragoza, Spain
- Department of Physiology and Pharmacology, University of Zaragoza, Zaragoza, Spain
| | - Ana Sánchez-Cano
- Aragon Institute for Health Research (IIS Aragon), Zaragoza, Spain
- Department of Applied Physics, University of Zaragoza, Zaragoza, Spain
| |
Collapse
|
10
|
In vivo imaging of palisades of Vogt in dry eye versus normal subjects using en-face spectral-domain optical coherence tomography. PLoS One 2017; 12:e0187864. [PMID: 29176786 PMCID: PMC5703550 DOI: 10.1371/journal.pone.0187864] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 10/27/2017] [Indexed: 12/13/2022] Open
Abstract
PURPOSE To evaluate a possible clinical application of spectral-domain optical coherence tomography (SD-OCT) using en-face module for the imaging of the corneoscleral limbus in normal subjects and dry eye patients. PATIENTS AND METHODS Seventy-six subjects were included in this study. Seventy eyes of 35 consecutive patients with dry eye disease and 82 eyes of 41 healthy control subjects were investigated. All subjects were examined with the Avanti RTVue® anterior segment OCT. En-face OCT images of the corneoscleral limbus were acquired in four quadrants (inferior, superior, nasal and temporal) and then were analyzed semi-quantitatively according to whether or not palisades of Vogt (POV) were visible. En-face OCT images were then compared to in vivo confocal microscopy (IVCM) in eleven eyes of 7 healthy and dry eye patients. RESULTS En-face SD-OCT showed POV as a radially oriented network, located in superficial corneoscleral limbus, with a good correlation with IVCM features. It provided an easy and reproducible identification of POV without any special preparation or any direct contact, with a grading scale from 0 (no visualization) to 3 (high visualization). The POV were found predominantly in superior (P<0.001) and inferior (P<0.001) quadrants when compared to the nasal and temporal quadrants for all subjects examined. The visibility score decreased with age (P<0.001) and was lower in dry eye patients (P<0.01). In addition, the score decreased in accordance with the severity of dry eye disease (P<0.001). CONCLUSION En-face SD-OCT is a non-contact imaging technique that can be used to evaluate the POV, thus providing valuable information about differences in the limbal anatomy of dry eye patients as compared to healthy patients.
Collapse
|
11
|
Conjunctivochalasis: a systematic review. Surv Ophthalmol 2017; 63:554-564. [PMID: 29128574 DOI: 10.1016/j.survophthal.2017.10.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 10/20/2017] [Accepted: 10/30/2017] [Indexed: 01/28/2023]
Abstract
Conjunctivochalasis (CCH) is a conjunctival condition characterized by loose, redundant conjunctival folds, most typically in the inferior bulbar conjunctiva of both eyes. Although CCH is a common cause of ocular irritation and discomfort, especially in the elderly, it is often overlooked in clinical practice. CCH may be associated with various ocular and nonocular conditions; however, the most important risk factor is aging. Although often asymptomatic, CCH may cause symptoms related to tear film instability and/or delayed tear clearance. Pathogenesis of CCH remains largely unknown but may involve different elements such as aged conjunctiva, unstable tear film, mechanical friction, ocular surface inflammation, and delayed tear clearance. Contradictory results have been reported on histopathologic changes in CCH, with some studies showing a normal microscopic structure. For symptomatic CCH, medical treatment may include lubrication and anti-inflammatory medications. For symptomatic patients who fail to respond to medical treatment, a surgical procedure may be considered. Although various surgical procedures have been used for CCH, more often, it consists of conjunctival cauterization or excision of the redundant conjunctiva, with or without amniotic membrane transplantation.
Collapse
|
12
|
Giant Conjunctival Nevus in a 12-Year-Old Child. Case Rep Ophthalmol Med 2017; 2017:8414352. [PMID: 28912992 PMCID: PMC5587934 DOI: 10.1155/2017/8414352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 07/26/2017] [Indexed: 11/21/2022] Open
Abstract
We describe a case of a giant conjunctival nevus presented in a 12-year-old girl with suspicious clinicomorphological appearance. The lesion was noticed by the parents at the age of 3 years as a “fleshy spot” on the bulbar conjunctiva. The lesion remained unchanged until approx. 6 months before recent admission. On slit-lamp examination, a large conjunctival lesion with variegate pigmentation and indistinct margins was detected on the superonasal part of the bulbar conjunctiva of the left eye. Intralesional cysts and vessels were detected with AS-OCT examination. Wide excision and cryotherapy to the scleral bed were performed and amniotic membrane graft was used to restore the ocular surface. Histopathological examination revealed compound type conjunctival nevus and disclosed any sign of malignancy. Although giant conjunctival nevus is a rare entity, precise diagnosis and adequate management are very important as it can be confused with malignant melanoma.
Collapse
|
13
|
Applications of Anterior Segment Optical Coherence Tomography in Cornea and Ocular Surface Diseases. J Ophthalmol 2016; 2016:4971572. [PMID: 27721988 PMCID: PMC5046038 DOI: 10.1155/2016/4971572] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 07/31/2016] [Indexed: 11/29/2022] Open
Abstract
Optical coherence tomography (OCT) is a noncontact technology that produces high-resolution cross-sectional images of ocular tissues. Anterior segment OCT (AS-OCT) enables the precise visualization of anterior segment structure; thus, it can be used in various corneal and ocular surface disorders. In this review, the authors will discuss the application of AS-OCT for diagnosis and management of various corneal and ocular surface disorders. Use of AS-OCT for anterior segment surgery and postoperative management will also be discussed. In addition, application of the device for research using human data and animal models will be introduced.
Collapse
|
14
|
Evaluation of Blebs After Filtering Surgery With En-Face Anterior-Segment Optical Coherence Tomography: A Pilot Study. J Glaucoma 2016; 25:e550-8. [DOI: 10.1097/ijg.0000000000000319] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
15
|
Ang M, Cai Y, Shahipasand S, Sim DA, Keane PA, Sng CCA, Egan CA, Tufail A, Wilkins MR. En face optical coherence tomography angiography for corneal neovascularisation. Br J Ophthalmol 2015; 100:616-21. [DOI: 10.1136/bjophthalmol-2015-307338] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 08/04/2015] [Indexed: 11/04/2022]
|
16
|
Ghouali W, Tahiri Joutei Hassani R, Liang H, Dupont-Monod S, Auclin F, Baudouin C, Labbé A. [Imaging of corneal dystrophies: Correlations between en face anterior segment OCT and in vivo confocal microscopy]. J Fr Ophtalmol 2015; 38:388-94. [PMID: 25922226 DOI: 10.1016/j.jfo.2014.10.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Revised: 10/07/2014] [Accepted: 10/13/2014] [Indexed: 11/17/2022]
Abstract
PURPOSE To evaluate the usefulness of en face Optical Coherence Tomography (OCT) for evaluation of corneal dystrophies and to describe correlations with in vivo confocal microscopy (IVCM). PATIENTS AND METHODS Thirty-two eyes of 16 patients with 4 types of corneal dystrophies (epithelial basement membrane dystrophy, Fuchs dystrophy, Reis-Bücklers corneal dystrophy and Crocodile Shagreen dystrophy) were enrolled in this study. Axial and reconstructed en face scans were acquired using OCT. Images were then correlated to IVCM findings. RESULTS En face OCT provided new insights into the structure, size and depth of corneal tissue alterations in various corneal dystrophies. OCT en face images were well correlated with IVCM features. Despite lower resolution than IVCM, en face OCT offers the advantages of being non-invasive and allowing the analysis of larger corneal areas. CONCLUSION En face OCT provides useful new information in corneal dystrophies. This imaging technique will probably increase in popularity in the near future for the assessment of various anterior segment diseases.
Collapse
Affiliation(s)
- W Ghouali
- Service d'ophtalmologie 3, centre hospitalier national d'ophtalmologie des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France
| | - R Tahiri Joutei Hassani
- Service d'ophtalmologie 3, centre hospitalier national d'ophtalmologie des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France; Centre d'investigation clinique, CIC Inserm 503, centre hospitalier national d'ophtalmologie des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France
| | - H Liang
- Service d'ophtalmologie 3, centre hospitalier national d'ophtalmologie des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France; Centre d'investigation clinique, CIC Inserm 503, centre hospitalier national d'ophtalmologie des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France; Inserm, U968, 75012 Paris, France; Université UPMC Paris 06, UMR S 968, Institut de la Vision, 75012 Paris, France; CNRS, UMR 7210, 75012 Paris, France
| | - S Dupont-Monod
- Service d'ophtalmologie 3, centre hospitalier national d'ophtalmologie des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France
| | - F Auclin
- Service d'ophtalmologie 3, centre hospitalier national d'ophtalmologie des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France; Centre d'investigation clinique, CIC Inserm 503, centre hospitalier national d'ophtalmologie des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France
| | - C Baudouin
- Service d'ophtalmologie 3, centre hospitalier national d'ophtalmologie des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France; Centre d'investigation clinique, CIC Inserm 503, centre hospitalier national d'ophtalmologie des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France; Service d'ophtalmologie, hôpital Ambroise-Paré, AP-HP, département hospitalo-universitaire vision et handicaps, université de Versailles Saint-Quentin-en-Yvelines, 9, avenue Charles-De-Gaulle, 92100 Boulogne Billancourt, France; Inserm, U968, 75012 Paris, France; Université UPMC Paris 06, UMR S 968, Institut de la Vision, 75012 Paris, France; CNRS, UMR 7210, 75012 Paris, France
| | - A Labbé
- Service d'ophtalmologie 3, centre hospitalier national d'ophtalmologie des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France; Centre d'investigation clinique, CIC Inserm 503, centre hospitalier national d'ophtalmologie des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France; Service d'ophtalmologie, hôpital Ambroise-Paré, AP-HP, département hospitalo-universitaire vision et handicaps, université de Versailles Saint-Quentin-en-Yvelines, 9, avenue Charles-De-Gaulle, 92100 Boulogne Billancourt, France; Inserm, U968, 75012 Paris, France; Université UPMC Paris 06, UMR S 968, Institut de la Vision, 75012 Paris, France; CNRS, UMR 7210, 75012 Paris, France.
| |
Collapse
|