IOL exchange remains an important surgical procedure for the consultative ophthalmologist.
In the 1980s and 1990s, gathering information from multiple sources and meetings, as many as 2% of IOLs implanted required removal and replacement. This was driven by the high number of closed-loop anterior chamber and iris-supported IOL implants placed after intracapsular cataract extraction in the 1970s and early 1980s that developed pseudophakic bullous keratopathy (PBK), iridocyclitis and cystoid macular edema, along with IOL subluxation and power misses in early-generation posterior chamber IOLs. In