Prevalence and Visual Outcomes of Cataract Surgery in Rural South India: A Cross-Sectional Study

Area of Science:

• Ophthalmology
• Public Health
• Epidemiology

Background:

• Cataract surgery is a common procedure to restore vision.
• Understanding postoperative outcomes in diverse populations is crucial for improving eye care.
• Rural South India presents unique challenges for healthcare access and outcomes.

Purpose of the Study:

• To determine the prevalence of cataract surgery in a rural South Indian population.
• To evaluate vision-related outcomes following cataract surgery.
• To analyze the influence of sex, socioeconomic status (SES), and initial eye care contact site on outcomes.

Main Methods:

• A population-based cross-sectional survey was conducted in 10 villages.
• 5530 individuals aged 50 years and older were included.
• Vision assessment and ophthalmic examinations were performed on participants who had undergone cataract surgery.

Main Results:

• The prevalence of cataract surgery was 13.9% in the studied age group.
• Postoperative outcomes were good in 53.1% of operated eyes without pinhole correction, improving to 75.2% with pinhole.
• Avoidable causes for suboptimal vision were identified in 76.3% of eyes with fair or poor outcomes. Place of surgery and duration since surgery were risk factors for blindness.

Conclusions:

• A significant proportion of visual impairment after cataract surgery in this rural setting is avoidable.
• There is a clear need for enhanced preventive strategies and surgical quality improvement.
• Further research should focus on addressing the identified risk factors to improve long-term visual outcomes.