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Mita N, Yamazaki M, Seki Y, Sasaki Y, Shibuya E, Mito T, Hatsusaka N, Kubo E, Sasaki H. Prediction of low-addition segmented refractive intraocular lens position and deviation using anterior-segment optical coherence tomography. PLoS One 2024; 19:e0305076. [PMID: 38857255 PMCID: PMC11164357 DOI: 10.1371/journal.pone.0305076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 05/22/2024] [Indexed: 06/12/2024] Open
Abstract
This study aimed to develop and analyze the accuracy of predictive formulae for postoperative anterior chamber depth, tilt, and decentration of low-added-segment refractive intraocular lenses. This single-center, retrospective, observational study included the right eyes of 96 patients (mean age: 72.43 ± 6.58 years), who underwent a cataract surgery with implantation of a low-added segmented refractive intraocular lens at the Medical University Hospital between July 2019 and January 2021, and were followed up for more than 1 month postoperatively. The participants were divided into an estimation group to create a prediction formula and a validation group to verify the accuracy of the formula. Anterior segment optical coherence tomography (CASIA 2, Tomey Corporation, Japan) and swept-source optical coherence tomography biometry (IOL Master 700, Carl Zeiss Meditec AG) were used to measure the anterior ocular components. A predictive formula was devised for postoperative anterior chamber depth, intraocular lens tilt, and intraocular lens decentration (p <0.01) in the estimation group. A significant positive correlation was observed between the estimated values calculated using the prediction formula and the measured values for postoperative anterior chamber depth (r = 0.792), amount of intraocular lens tilt (r = 0.610), direction of intraocular lens tilt (r = 0.668), and amount of intraocular lens decentration (r = 0.431) (p < 0.01) in the validation group. In conclusion, our findings reveal that predicting the position of the low-added segmented refractive intraocular lens enables the prognosis of postoperative refractive values with a greater accuracy in determining the intraocular lens adaptation.
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Affiliation(s)
- Norihiro Mita
- Department of Ophthalmology, Kanazawa Medical University, Kahoku, Ishikawa, Japan
| | - Mai Yamazaki
- Department of Ophthalmology, Kanazawa Medical University, Kahoku, Ishikawa, Japan
| | - Yusuke Seki
- Department of Ophthalmology, Kanazawa Medical University, Kahoku, Ishikawa, Japan
| | - Yu Sasaki
- Department of Ophthalmology, Kanazawa Medical University, Kahoku, Ishikawa, Japan
| | - Eri Shibuya
- Department of Ophthalmology, Kanazawa Medical University, Kahoku, Ishikawa, Japan
| | - Tsuyoshi Mito
- Department of Ophthalmology, Kanazawa Medical University, Kahoku, Ishikawa, Japan
| | - Natsuko Hatsusaka
- Department of Ophthalmology, Kanazawa Medical University, Kahoku, Ishikawa, Japan
| | - Eri Kubo
- Department of Ophthalmology, Kanazawa Medical University, Kahoku, Ishikawa, Japan
| | - Hiroshi Sasaki
- Department of Ophthalmology, Kanazawa Medical University, Kahoku, Ishikawa, Japan
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Gupta N, Panigrahi A, Gupta N, Sen S. Macular corneal dystrophy with iridofundal coloboma in the same patient: a unique combination. BMJ Case Rep 2024; 17:e258786. [PMID: 38719268 PMCID: PMC11085980 DOI: 10.1136/bcr-2023-258786] [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] [Indexed: 05/13/2024] Open
Abstract
A young a presented with painless, progressive diminution of vision in both eyes (BE). Slit lamp examination revealed the presence of a single central corneal opacity in the right eye and multiple corneal opacities of varying sizes in the left eye (LE), limited to the anterior-mid corneal stroma. Microcornea with reduced central corneal thickness and complete inferonasal iris coloboma along with inferior fundal coloboma, sparing both the disc and macula, were noted in BE. A diagnosis of BE macular corneal dystrophy (MCD) and iridofundal coloboma (IFC) was made. The patient underwent LE sutureless anterior lamellar therapeutic keratoplasty. On histopathological examination, the excised corneal tissue revealed stromal lamellar disarray with positive colloidal iron staining, strongly suggestive of MCD. Whole-exome sequencing revealed the presence of a likely pathogenic carbohydrate sulfotransferase 6 (CHST6) mutation, confirming the diagnosis of MCD. This concurrent presence of IFC with a corneal stromal dystrophy is previously unreported in the literature, to the best of our knowledge.
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Affiliation(s)
- Noopur Gupta
- Ophthalmology, All India Institute of Medical Sciences, New Delhi, India
| | - Arnav Panigrahi
- Ophthalmology, All India Institute of Medical Sciences, New Delhi, India
| | - Neerja Gupta
- Medical Genetics, All India Institute of Medical Sciences, New Delhi, India
| | - Seema Sen
- Ocular Pathology, All India Institute of Medical Sciences, New Delhi, India
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Spindler J, Koller S, Graf U, Berger W, Gerth-Kahlert C, Blaser F. Macular Corneal Dystrophy - Molecular Genetics as the Key in Treatment-Refractory Keratopathy. Klin Monbl Augenheilkd 2024; 241:398-401. [PMID: 38653268 DOI: 10.1055/a-2219-8288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Affiliation(s)
- Jan Spindler
- Department of Ophthalmology, University Hospital Zurich, Zurich, Switzerland
| | - Samuel Koller
- Institute of Medical Molecular Genetics, University of Zurich, Schlieren, Switzerland
| | - Urs Graf
- Institute of Medical Molecular Genetics, University of Zurich, Schlieren, Switzerland
- Aktuelle Adresse: Labordiagnostic St. Gallen West AG, 9015 St. Gallen
| | - Wolfgang Berger
- Institute of Medical Molecular Genetics, University of Zurich, Schlieren, Switzerland
- Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland
- Zentrum für Neurowissenschaften (ZNZ), University and ETH Zurich, Zurich, Switzerland
| | | | - Frank Blaser
- Department of Ophthalmology, University Hospital Zurich, Zurich, Switzerland
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Kaur A, Parida P, Priyadarshini SR, Mohanty A, Sahu SK, Das S. Indications and types of keratoplasties: Trends in the past 10 years (2011-2020) in Eastern India. Indian J Ophthalmol 2023; 71:3166-3170. [PMID: 37602603 PMCID: PMC10565916 DOI: 10.4103/ijo.ijo_2636_22] [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: 10/09/2022] [Revised: 06/24/2023] [Accepted: 07/04/2023] [Indexed: 08/22/2023] Open
Abstract
Purpose To observe the trends of various types of keratoplasties in different etiologies over a period of 10 years (2011-2020) in a tertiary eye care center of eastern India. Methods A retrospective review of patients undergoing keratoplasties from 2011 to 2020 was performed in a tertiary eye care hospital situated in eastern part of India. Apart from demographic data, primary indication for each surgery and type of procedure carried out was recorded. For comparison, data were divided into two time periods: Group I: Jan 2011 to Dec 2015 and Group II: Jan 2016 to Dec 2020. Results Over a period of 10 years, a total of 2365 (Group I: 902, Group II: 1463) keratoplasties were performed. The average age of patients was 45.8 ± 19.9 and 46.9 ± 20.9 years in Group I and Group II, respectively. Among all the corneal grafts, 1747 (74%) surgeries were full-thickness. Although optical penetrating keratoplasty (OPK) was most the common indication for full-thickness keratoplasties, Descemet's stripping endothelial keratoplasty (DSEK) remained most performed lamellar keratoplasty. Keratitis, corneal scars, and bullous keratopathies remain to be most common indications in both groups. Number of lamellar keratoplasties increased significantly from Group I to Group II for corneal scars (P = 0.02), bullous keratopathies (P = 0.01), and endothelial dystrophies (P = 0.00). Conclusion With change in time, the indication and technique of keratoplasty has witnessed a changing trend from full-thickness keratoplasty to lamellar keratoplasty. There is rise in trend of lamellar keratoplasties over the period.
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Affiliation(s)
- Amanjot Kaur
- Cornea and Anterior Segment Service, L V Prasad Eye Institute, Bhubaneswar, Odisha, India
| | - Priyadarsani Parida
- Cornea and Anterior Segment Service, L V Prasad Eye Institute, Bhubaneswar, Odisha, India
| | | | - Amrita Mohanty
- Cornea and Anterior Segment Service, L V Prasad Eye Institute, Bhubaneswar, Odisha, India
| | - Srikant K Sahu
- Cornea and Anterior Segment Service, L V Prasad Eye Institute, Bhubaneswar, Odisha, India
| | - Sujata Das
- Cornea and Anterior Segment Service, L V Prasad Eye Institute, Bhubaneswar, Odisha, India
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Roles and Mechanisms of Regulated Necrosis in Corneal Diseases: Progress and Perspectives. J Ophthalmol 2022; 2022:2695212. [PMID: 35655803 PMCID: PMC9152437 DOI: 10.1155/2022/2695212] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/24/2022] [Accepted: 05/09/2022] [Indexed: 11/21/2022] Open
Abstract
Regulated necrosis is defined as cell death characterized by loss of the cell membrane integrity and release of the cytoplasmic content. It contributes to the development and progression of some diseases, including ischemic stroke injury, liver diseases, hypertension, and cancer. Various forms of regulated necrosis, particularly pyroptosis, necroptosis, and ferroptosis, have been implicated in the pathogenesis of corneal disease. Regulated necrosis of corneal cells enhances inflammatory reactions in the adjacent corneal tissues, leading to recurrence and aggravation of corneal disease. In this review, we summarize the molecular mechanisms of pyroptosis, necroptosis, and ferroptosis in corneal diseases and discuss the roles of regulated necrosis in inflammation regulation, tissue repair, and corneal disease outcomes.
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Gassel CJ, Rohrbach JM, Röck D, Bartz-Schmidt KU, Röck T. Histological findings of corneal tissue after failed phototherapeutic keratectomy in macular corneal dystrophy - a case report. BMC Ophthalmol 2022; 22:209. [PMID: 35527243 PMCID: PMC9080147 DOI: 10.1186/s12886-022-02400-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Accepted: 04/12/2022] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Macular corneal dystrophy is a rare inherited disease of the cornea leading to deposits mainly in the stroma. Affected patients suffer from progressive loss of visual acuity which should be treated with penetrating keratoplasty. This is the first case report describing the clinical and histopathological findings of corneal tissue after failed phototherapeutic keratectomy (PTK) in a patient with macular corneal dystrophy. CASE PRESENTATION A 32-year-old man presented with visual impairment, blurred vision and increasing glare sensitivity in both eyes in 2014. All symptoms had existed for several years and had recently increased sharply. A corneal dystrophy was diagnosed and penetrating keratoplasty was recommended but the patient was hesitant to undergo surgery. In 2018, in contrast to current guidelines, a PTK was performed in both eyes in Turkey for unknown reasons. In May 2019, he presented again in our clinic. Best corrected visual acuity was markedly reduced in both eyes. Slit-lamp examination revealed multiple dense, poorly circumscribed grey-white patchy changes in the stroma accompanied by corneal opacity in both eyes. In February 2020, the patient decided to have penetrating keratoplasty performed at the University Eye Hospital in Tübingen. The explanted cornea was stained for acid mucopolysaccharides (AMP) and periodic acid-Schiff staining (PAS). The histopathological examination revealed destruction of Bowman's layer and a subepithelial fibrosis band due to the PTK previously performed. The AMP staining demonstrated blue deposits typical of macular corneal dystrophy, mainly in the stroma but also in the endothelium. Interestingly, the acidic mucopolysaccharides were found increased in the PTK-induced subepithelial fibrosis band. The postoperative course after keratoplasty was favourable with a significant increase in visual acuity and a clear graft. CONCLUSIONS This report presents the first case of a histologically evident exacerbation of macular corneal dystrophy after PTK and emphasizes the relevance of thorough pre-interventional diagnosis and patient selection to consider other therapeutic approaches, such as penetrating keratoplasty.
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Affiliation(s)
- Caroline Julia Gassel
- grid.10392.390000 0001 2190 1447Centre for Ophthalmology, University Eye Hospital, Eberhard Karls University Tübingen, Elfriede-Aulhorn-Str. 7, 72076 Tübingen , Germany
| | - Jens Martin Rohrbach
- grid.10392.390000 0001 2190 1447Centre for Ophthalmology, University Eye Hospital, Eberhard Karls University Tübingen, Elfriede-Aulhorn-Str. 7, 72076 Tübingen , Germany
| | - Daniel Röck
- grid.10392.390000 0001 2190 1447Centre for Ophthalmology, University Eye Hospital, Eberhard Karls University Tübingen, Elfriede-Aulhorn-Str. 7, 72076 Tübingen , Germany
| | - Karl Ulrich Bartz-Schmidt
- grid.10392.390000 0001 2190 1447Centre for Ophthalmology, University Eye Hospital, Eberhard Karls University Tübingen, Elfriede-Aulhorn-Str. 7, 72076 Tübingen , Germany
| | - Tobias Röck
- grid.10392.390000 0001 2190 1447Centre for Ophthalmology, University Eye Hospital, Eberhard Karls University Tübingen, Elfriede-Aulhorn-Str. 7, 72076 Tübingen , Germany ,grid.10392.390000 0001 2190 1447Prof. Dr. med. Tobias Röck, Centre for Ophthalmology, University Eye Hospital, Eberhard Karls University Tübingen, Elfriede-Aulhorn-Str. 7, 72076 Tübingen, Germany
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Wang Y, Cao H. Corneal and Scleral Biomechanics in Ophthalmic Diseases: An Updated Review. MEDICINE IN NOVEL TECHNOLOGY AND DEVICES 2022. [DOI: 10.1016/j.medntd.2022.100140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Nowińska A, Chlasta-Twardzik E, Dembski M, Wróblewska-Czajka E, Ulfik-Dembska K, Wylęgała E. Detailed corneal and genetic characteristics of a pediatric patient with macular corneal dystrophy - case report. BMC Ophthalmol 2021; 21:285. [PMID: 34301210 PMCID: PMC8299585 DOI: 10.1186/s12886-021-02041-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 07/07/2021] [Indexed: 11/08/2023] Open
Abstract
BACKGROUND Corneal dystrophies are a group of rare, inherited disorders that are usually bilateral, symmetric, slowly progressive, and not related to environmental or systemic factors. The majority of publications present the advanced form of the disease with a typical clinical demonstration. The initial signs and symptoms of different epithelial and stromal corneal dystrophies are not specific; therefore, it is very important to establish the early characteristic corneal features of these disorders that could guide the diagnostic process. CASE PRESENTATION The main purpose of this study was to report the differential diagnosis of a pediatric patient with bilateral anterior corneal involvement suspected of corneal dystrophy. An 8-year-old male patient presented with asymptomatic, persistent, superficial, bilateral, diffuse, anterior corneal opacities. Slit lamp examination results were not specific. Despite the lack of visible stromal involvement on the slit lamp examination, corneal analysis based on confocal microscopy and optical coherence tomography revealed characteristic features of macular corneal dystrophy (MCD). The diagnosis of MCD was confirmed by CHST6 gene sequencing. The early corneal characteristic features of MCD, established based on the findings of this case report, include corneal astigmatism (not specific), diffuse corneal thinning without a pattern of corneal ectasia (specific), and characteristic features on confocal microscopy (specific), including multiple, dark, oriented striae at different corneal depths. CONCLUSIONS The clinical examination should be complemented with corneal imaging techniques, such as confocal microscopy and optical coherence tomography. In patients suspected of corneal dystrophy, genetic testing plays an important role in establishing the final diagnosis.
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Affiliation(s)
- Anna Nowińska
- Chair and Clinical Department of Ophthalmology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. Panewnicka 65, 40-760, Katowice, Poland.
- Ophthalmology Department, Railway Hospital in Katowice, Katowice, Poland.
| | - Edyta Chlasta-Twardzik
- Chair and Clinical Department of Ophthalmology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. Panewnicka 65, 40-760, Katowice, Poland
- Ophthalmology Department, Railway Hospital in Katowice, Katowice, Poland
| | - Michał Dembski
- Chair and Clinical Department of Ophthalmology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. Panewnicka 65, 40-760, Katowice, Poland
- Ophthalmology Department, Railway Hospital in Katowice, Katowice, Poland
| | - Ewa Wróblewska-Czajka
- Chair and Clinical Department of Ophthalmology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. Panewnicka 65, 40-760, Katowice, Poland
- Ophthalmology Department, Railway Hospital in Katowice, Katowice, Poland
| | - Klaudia Ulfik-Dembska
- Chair and Clinical Department of Ophthalmology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. Panewnicka 65, 40-760, Katowice, Poland
- Ophthalmology Department, Railway Hospital in Katowice, Katowice, Poland
| | - Edward Wylęgała
- Chair and Clinical Department of Ophthalmology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, ul. Panewnicka 65, 40-760, Katowice, Poland
- Ophthalmology Department, Railway Hospital in Katowice, Katowice, Poland
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Huang Y, Yuan L, Cao Y, Tang R, Xu H, Tang Z, Deng H. Novel compound heterozygous mutations in the CHST6 gene cause macular corneal dystrophy in a Han Chinese family. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:622. [PMID: 33987320 PMCID: PMC8106006 DOI: 10.21037/atm-20-7178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND Macular corneal dystrophy (MCD), a rare autosomal recessive disorder, is caused by pathogenic mutations in the carbohydrate sulfotransferase 6 gene (CHST6) and is characterized by bilateral progressive stromal clouding and vision loss. Corneal transplantation is often necessary. This study aimed to identify disease-causing mutations in a Han-Chinese MCD patient. METHODS A 37-year-old female diagnosed with MCD was recruited. The clinical materials were observed and described, and peripheral blood sample was extracted. Whole exome sequencing (WES) and Sanger sequencing were used to reveal genetic defects. The pathogenicity of identified mutations was assessed using in silico analysis. RESULTS The patient had typical features of MCD, including decreased vision, multiple irregular gray-white corneal opacities, and corneal thinning. A novel nonsense mutation c.544C>T (p.Gln182Ter) and a validated missense mutation c.631C>G (p.Arg211Gly) were identified in the CHST6 gene coding region, both classified as "pathogenic" following the American College of Medical Genetics and Genomics standards and guidelines. CONCLUSIONS This study reports a Han-Chinese MCD patient with a novel nonsense mutation c.544C>T (p.Gln182Ter) and a recurrent missense mutation c.631C>G (p.Arg211Gly), which expand the spectrum of genetic mutations. The results of this study extend genotype-phenotype correlations between the CHST6 gene mutations and MCD clinical findings, contributing to a more accurate diagnosis and the development of potential gene-targeted MCD therapies. KEYWORDS Carbohydrate sulfotransferase 6 gene (CHST6); compound heterozygous mutations; Han Chinese family; macular corneal dystrophy (MCD).
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Affiliation(s)
- Yanxia Huang
- Center for Experimental Medicine, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Lamei Yuan
- Center for Experimental Medicine, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Yanna Cao
- Department of Ophthalmology, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Renhong Tang
- Department of Ophthalmology, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Hongbo Xu
- Center for Experimental Medicine, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Ziqian Tang
- Center for Experimental Medicine, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Hao Deng
- Center for Experimental Medicine, the Third Xiangya Hospital, Central South University, Changsha, China;,Department of Neurology, the Third Xiangya Hospital, Central South University, Changsha, China;,Disease Genome Research Center, Central South University, Changsha, China
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