When Clearer Vision Comes with a Risk: Cataract Surgery and Diabetic Retinopathy Progression

A recent study published in Medicine (Baltimore) highlights an important consideration for diabetic patients undergoing cataract surgery. Researchers in Thailand followed 200 eyes (100 operated, 100 non-operated) for 12 months to examine how surgery affects diabetic retinopathy (DR). The findings revealed a significantly higher rate of DR progression in operated eyes (21%) compared to non-operated eyes (13%). Interestingly, the rate of diabetic macular edema (DME) did not differ notably between groups.

Poor glycemic control (HbA₁c > 7%) and pre-existing DR emerged as key predictors of disease worsening after surgery. The study suggests that postoperative inflammation and disruption of the blood-retinal barrier may accelerate retinal damage.

Why it matters: With cataract surgery being increasingly common in diabetic populations, these findings reinforce the importance of preoperative optimization and vigilant postoperative monitoring. Ophthalmologists and endocrinologist should work collaboratively to stabilize blood glucose and closely follow up on retinal health after surgery, ensuring that clearer vision doesn’t come at the cost of worsening retinopathy.

https://journals.lww.com/md-journal/fulltext/2025/10240/association_between_the_progression_of_diabetic.17.aspx?context=latestarticles

MBH/AB