Surgical interventions for age-related cataract.

Area of Science:

• Ophthalmology
• Surgical Interventions
• Public Health

Background:

• Cataract is the leading cause of global blindness, affecting 50% of cases worldwide.
• The incidence of cataracts is rising due to an aging population and increased life expectancy.
• Cataract surgery is a highly cost-effective healthcare intervention.

Purpose of the Study:

• To compare the effectiveness of various surgical interventions for age-related cataracts.
• To evaluate visual outcomes and complication rates associated with different cataract surgery types.

Main Methods:

• Systematic review of randomized controlled trials (RCTs) identified through comprehensive database searches (CENTRAL, MEDLINE, EMBASE) up to July 2006.
• Data extraction and analysis were performed independently by two reviewers, with discrepancies resolved through discussion.
• Heterogeneity was assessed to summarize risk ratios, odds ratios, and weighted mean differences.

Main Results:

• Phacoemulsification demonstrated superior visual outcomes compared to extracapsular surgery, with similar costs in Europe but not in poorer countries.
• Extracapsular surgery with posterior chamber lens implant and intraocular lens (IOL) implant provided acceptable visual outcomes, but with fewer complications than extracapsular surgery.
• Manual small incision surgery offered better visual outcomes than extracapsular surgery, with visual acuity comparable to phacoemulsification.

Conclusions:

• Phacoemulsification provides superior visual outcomes compared to extracapsular surgery with sutures.
• Extracapsular surgery with a posterior chamber lens implant yields better visual outcomes than intraocular collamer lens extraction (ICCE) with aphakic glasses.
• Manual small incision cataract surgery offers early visual rehabilitation and comparable outcomes to phacoemulsification, making it a viable option in existing ECCE clinics.