Identification of glaucomatous optic nerve head changes in Indian donor eyes without clinical history
Purpose: The purpose of this study is to develop methods to identify glaucoma by examining the optic nerve head (ONH) of donor's eyes when information on the preexisting ocular disease is unavailable. Materials and Methods: The ONH of the donor's eyes was evaluated under a stereomicroscope...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2015-01-01
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| Series: | Indian Journal of Ophthalmology |
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| Online Access: | http://www.ijo.in/article.asp?issn=0301-4738;year=2015;volume=63;issue=7;spage=600;epage=605;aulast=Senthilkumari |
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| author | Srinivasan Senthilkumari Mohan Neethu Radhakrishnan Santhi Subbiah Ramaswami Krishnadas Veerappan Muthukkaruppan |
| author_facet | Srinivasan Senthilkumari Mohan Neethu Radhakrishnan Santhi Subbiah Ramaswami Krishnadas Veerappan Muthukkaruppan |
| author_sort | Srinivasan Senthilkumari |
| collection | DOAJ |
| description | Purpose: The purpose of this study is to develop methods to identify glaucoma by examining the optic nerve head (ONH) of donor's eyes when information on the preexisting ocular disease is unavailable. Materials and Methods: The ONH of the donor's eyes was evaluated under a stereomicroscope for the cup-disc ratio (CDR) and focal retinal rim thinning. The vertical diameter of the cup and disc was also measured using a precalibrated eyepiece micrometer. The suspect eyes were subjected to histological analysis to confirm the presence of specific glaucomatous changes. Results: A total of 202 eyes from 119 donors (68 males and 51 females, aged 42–96) were evaluated for glaucoma. Among them, 190 (94%) eyes showing vertical CDR in the of 0.0–0.6 range were considered nonglaucomatous and the remaining eyes with >0.6 as glaucoma suspect. The calculated mean CDR of the two groups (0.3 ± 0.16, 0.62 ± 0.27) was highly significant (P = 0.0003). Of 12 eyes suspected of glaucoma, 7 eyes from 5 donors showed specific glaucomatous changes by histology. The prevalence of glaucoma was 4.2% among the donors studied. Conclusions: A simple method of screening fresh donor eyes for selecting those with glaucoma features using CDR and histological analysis was reported. This method helps to obtain biologically active human ocular tissue for glaucoma research on gene expression, ultrastructural/proteome changes, and outflow mechanism. |
| first_indexed | 2024-12-18T19:09:22Z |
| format | Article |
| id | doaj.art-a157b34d44f447839e2fe8feae17d760 |
| institution | Directory Open Access Journal |
| issn | 0301-4738 1998-3689 |
| language | English |
| last_indexed | 2024-12-18T19:09:22Z |
| publishDate | 2015-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Indian Journal of Ophthalmology |
| spelling | doaj.art-a157b34d44f447839e2fe8feae17d7602022-12-21T20:56:19ZengWolters Kluwer Medknow PublicationsIndian Journal of Ophthalmology0301-47381998-36892015-01-0163760060510.4103/0301-4738.167118Identification of glaucomatous optic nerve head changes in Indian donor eyes without clinical historySrinivasan SenthilkumariMohan NeethuRadhakrishnan SanthiSubbiah Ramaswami KrishnadasVeerappan MuthukkaruppanPurpose: The purpose of this study is to develop methods to identify glaucoma by examining the optic nerve head (ONH) of donor's eyes when information on the preexisting ocular disease is unavailable. Materials and Methods: The ONH of the donor's eyes was evaluated under a stereomicroscope for the cup-disc ratio (CDR) and focal retinal rim thinning. The vertical diameter of the cup and disc was also measured using a precalibrated eyepiece micrometer. The suspect eyes were subjected to histological analysis to confirm the presence of specific glaucomatous changes. Results: A total of 202 eyes from 119 donors (68 males and 51 females, aged 42–96) were evaluated for glaucoma. Among them, 190 (94%) eyes showing vertical CDR in the of 0.0–0.6 range were considered nonglaucomatous and the remaining eyes with >0.6 as glaucoma suspect. The calculated mean CDR of the two groups (0.3 ± 0.16, 0.62 ± 0.27) was highly significant (P = 0.0003). Of 12 eyes suspected of glaucoma, 7 eyes from 5 donors showed specific glaucomatous changes by histology. The prevalence of glaucoma was 4.2% among the donors studied. Conclusions: A simple method of screening fresh donor eyes for selecting those with glaucoma features using CDR and histological analysis was reported. This method helps to obtain biologically active human ocular tissue for glaucoma research on gene expression, ultrastructural/proteome changes, and outflow mechanism.http://www.ijo.in/article.asp?issn=0301-4738;year=2015;volume=63;issue=7;spage=600;epage=605;aulast=SenthilkumariCup-disc ratiodonor eyesglaucomaglaucomatous changeshistopathology |
| spellingShingle | Srinivasan Senthilkumari Mohan Neethu Radhakrishnan Santhi Subbiah Ramaswami Krishnadas Veerappan Muthukkaruppan Identification of glaucomatous optic nerve head changes in Indian donor eyes without clinical history Indian Journal of Ophthalmology Cup-disc ratio donor eyes glaucoma glaucomatous changes histopathology |
| title | Identification of glaucomatous optic nerve head changes in Indian donor eyes without clinical history |
| title_full | Identification of glaucomatous optic nerve head changes in Indian donor eyes without clinical history |
| title_fullStr | Identification of glaucomatous optic nerve head changes in Indian donor eyes without clinical history |
| title_full_unstemmed | Identification of glaucomatous optic nerve head changes in Indian donor eyes without clinical history |
| title_short | Identification of glaucomatous optic nerve head changes in Indian donor eyes without clinical history |
| title_sort | identification of glaucomatous optic nerve head changes in indian donor eyes without clinical history |
| topic | Cup-disc ratio donor eyes glaucoma glaucomatous changes histopathology |
| url | http://www.ijo.in/article.asp?issn=0301-4738;year=2015;volume=63;issue=7;spage=600;epage=605;aulast=Senthilkumari |
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