Effect of Cataract Surgery on Central Corneal Thickness and Visual Fields in Glaucomatous and Non-Glaucomatous Eyes: A Comparative Study in Rural Tertiary Care Hospital
European Journal of Molecular & Clinical Medicine,
2022, Volume 9, Issue 7, Pages 3711-3720
AbstractBackground: Cataract and glaucoma are both common conditions and are often present in the same patient. The incidence of these diseases increases with age. Besides vision impairment, these diseases are associated with decrement in quality of life (QOL). Objective: To study the effect of cataract surgery on Central Corneal Thickness and Visual Fields in glaucomatous and non-glaucomatous eyes.
Materials and Methods: We enrolled 60 patients with glaucoma and concomitant cataract (Group A) and 60 patients with only cataract (Group B) scheduled for phacoemulsification cataract surgery. A record was made which included number of anti-glaucoma medications, visual acuity (VA), intra-ocular pressure (IOP), Central corneal thickness (CCT), visual field (VF) analysis: mean deviation (MD) and pattern standard deviation (PSD). The patients were re-evaluated at 1st week,4th week and 3rd month after cataract extraction and the above parameters were again obtained to compare them with the baseline values.
Results: The mean age of patients is 50.70±8.42 years in Group A & 50.83±8.29 years in Group B. Following cataract extraction, VA improved while CCT changes were insignificant in both the groups. The VF analysis showed that there was an improvement in mean deviation and worsening in pattern standard deviation after the cataract surgery in glaucomatous patients. Similar result was seen for mean deviation in control group. But there was no effect of cataract surgery on pattern standard deviation in non-glaucomatous patients.
Conclusion: Cataract extraction proves to be a beneficial management in both glaucomatous and non-glaucomatous patients in terms of vision and mean deviation. PSD was not affected in non-glaucomatous patients.
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