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A comparative study of stereoacuity in patients with various grades of cataract and bilateral pseudophakia
PURPOSE: To compare the stereopsis in patients with various grades of cataract and bilateral pseudophakia. METHODS: A cross-sectional observational study was conducted at a tertiary care center in South India from December 2016 to September 2018, wherein the stereoacuity of patients having bilateral...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Wolters Kluwer - Medknow
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6836621/ https://www.ncbi.nlm.nih.gov/pubmed/31638044 http://dx.doi.org/10.4103/ijo.IJO_401_19 |
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author | Undrakonda, Vivekanand Sahiti, Thotamasetty Krishna Vennesh, Patchipala Siva Kamath, Yogish Subraya |
author_facet | Undrakonda, Vivekanand Sahiti, Thotamasetty Krishna Vennesh, Patchipala Siva Kamath, Yogish Subraya |
author_sort | Undrakonda, Vivekanand |
collection | PubMed |
description | PURPOSE: To compare the stereopsis in patients with various grades of cataract and bilateral pseudophakia. METHODS: A cross-sectional observational study was conducted at a tertiary care center in South India from December 2016 to September 2018, wherein the stereoacuity of patients having bilateral senile cataract or bilateral pseudophakia, was measured using the Titmus Fly chart. Those with any form of squint, glaucoma or retinal pathology were excluded. The patients were divided into three groups based on the severity of cataract, determined by the Lens Opacification Classification System (LOCS)-III. Group 4 included those with bilateral pseudophakia. Statistical analysis was performed using one-way ANOVA test with post hoc analysis using the Bonferroni test, to study the difference of stereoacuity between the groups. RESULTS: A total of 200 patients were evaluated. The mean stereoacuity was 65.2 ± 18.2, 114.8 ± 83.42, 402.4 ± 223.7 and 107.2 ± 71.68 arc seconds in groups 1, 2, 3 and 4, respectively (P < 0.001). The mean best corrected visual acuity (BCVA) in LogMAR units was 0.19 ± 0.15, 0.37 ± 0.24, 0.82 ± 0.26 and 0.14 ± 0.13 in groups 1, 2, 3 and 4, respectively (P = 0.01). On comparison between four groups, there was a generalised decrease in BCVA and stereoacuity with increasing grades of cataract except for group 4 which included the bilateral pseudophakics. On post hoc analysis to analyse intergroup variation a statistically significant difference in stereo acuity was noticed when group 3 was compared to other groups. CONCLUSION: Stereoacuity decreases with increasing grades of cataract. Better stereoacuity is seen in patients with bilateral pseudophakia when compared with high grades of cataract. |
format | Online Article Text |
id | pubmed-6836621 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Wolters Kluwer - Medknow |
record_format | MEDLINE/PubMed |
spelling | pubmed-68366212019-11-15 A comparative study of stereoacuity in patients with various grades of cataract and bilateral pseudophakia Undrakonda, Vivekanand Sahiti, Thotamasetty Krishna Vennesh, Patchipala Siva Kamath, Yogish Subraya Indian J Ophthalmol Original Article PURPOSE: To compare the stereopsis in patients with various grades of cataract and bilateral pseudophakia. METHODS: A cross-sectional observational study was conducted at a tertiary care center in South India from December 2016 to September 2018, wherein the stereoacuity of patients having bilateral senile cataract or bilateral pseudophakia, was measured using the Titmus Fly chart. Those with any form of squint, glaucoma or retinal pathology were excluded. The patients were divided into three groups based on the severity of cataract, determined by the Lens Opacification Classification System (LOCS)-III. Group 4 included those with bilateral pseudophakia. Statistical analysis was performed using one-way ANOVA test with post hoc analysis using the Bonferroni test, to study the difference of stereoacuity between the groups. RESULTS: A total of 200 patients were evaluated. The mean stereoacuity was 65.2 ± 18.2, 114.8 ± 83.42, 402.4 ± 223.7 and 107.2 ± 71.68 arc seconds in groups 1, 2, 3 and 4, respectively (P < 0.001). The mean best corrected visual acuity (BCVA) in LogMAR units was 0.19 ± 0.15, 0.37 ± 0.24, 0.82 ± 0.26 and 0.14 ± 0.13 in groups 1, 2, 3 and 4, respectively (P = 0.01). On comparison between four groups, there was a generalised decrease in BCVA and stereoacuity with increasing grades of cataract except for group 4 which included the bilateral pseudophakics. On post hoc analysis to analyse intergroup variation a statistically significant difference in stereo acuity was noticed when group 3 was compared to other groups. CONCLUSION: Stereoacuity decreases with increasing grades of cataract. Better stereoacuity is seen in patients with bilateral pseudophakia when compared with high grades of cataract. Wolters Kluwer - Medknow 2019-11 2019-10-22 /pmc/articles/PMC6836621/ /pubmed/31638044 http://dx.doi.org/10.4103/ijo.IJO_401_19 Text en Copyright: © 2019 Indian Journal of Ophthalmology http://creativecommons.org/licenses/by-nc-sa/4.0 This is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms. |
spellingShingle | Original Article Undrakonda, Vivekanand Sahiti, Thotamasetty Krishna Vennesh, Patchipala Siva Kamath, Yogish Subraya A comparative study of stereoacuity in patients with various grades of cataract and bilateral pseudophakia |
title | A comparative study of stereoacuity in patients with various grades of cataract and bilateral pseudophakia |
title_full | A comparative study of stereoacuity in patients with various grades of cataract and bilateral pseudophakia |
title_fullStr | A comparative study of stereoacuity in patients with various grades of cataract and bilateral pseudophakia |
title_full_unstemmed | A comparative study of stereoacuity in patients with various grades of cataract and bilateral pseudophakia |
title_short | A comparative study of stereoacuity in patients with various grades of cataract and bilateral pseudophakia |
title_sort | comparative study of stereoacuity in patients with various grades of cataract and bilateral pseudophakia |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6836621/ https://www.ncbi.nlm.nih.gov/pubmed/31638044 http://dx.doi.org/10.4103/ijo.IJO_401_19 |
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