Cataracts, PCO & Vision Health
After today's wonderful weekly call, I pulled up an email recently shared with @Barbara Hong and thought I would start this discussion on an important topic we covered in today's call. Many of us in HOP are navigating multiple eye health layers at once. All of you have a retinal condition. Many of you have other eye conditions, like cataracts. Cataracts are one of the most common—whether you’ve had surgery already, are considering it, or are hoping to avoid it. Each person's vision journey will be unique based on a myriad of variables, like cataracts and/or PCO. 👉 Did you know? - Cataracts affect over 24 million Americans over the age of 40, and by age 80, more than half of all Americans either have cataracts or have had cataract surgery. - Cataract surgery is one of the most common procedures worldwide. - However, a fair number of people who’ve had surgery later develop a condition called Posterior Capsular Opacification (PCO)—sometimes called a “secondary cataract.” What is PCO? After cataract surgery, the natural cloudy lens is replaced with an artificial lens. In some cases, the thin membrane (posterior capsule) holding that new lens can itself become cloudy over time. This is Posterior Capsular Opacification (PCO). Why does it happen? PCO occurs when leftover lens cells grow across the capsule and create haze, blurring vision again. 🎯 Reliable Numbers for PCO Incidence - According to the Royal College of Ophthalmologists’ National Ophthalmology Database (UK), about 12.3% of cataract surgery eyes develop PCO at some point. But that number grows over time — the observed rates in that study were ~2.3% at 6 months, ~4.4% at 1 year, ~19.7% at 3 years, ~34.0% at 5 years, ~46.9% at 9 years. PMC - A broader review (EyeWiki) says that PCO occurs in 20–50% of patients within 2 to 5 years after cataract surgery. EyeWiki - Another study found incidence of PCO (and requirements for Nd:YAG capsulotomy) ranged between 4.7–18.6% at 3 years, and 7.1–22.6% at 5 years. Nature