Monovision: a refractive consideration in cataract surgery after vitrectomy?

Cataract is the most common complication of vitrectomising surgery in the phakic eye. Progressive nuclear sclerosis (NS) causes a myopic shift. This change in refractive status can predispose to the development of monovision in presbyopic individuals. Recognition of adaptation to monovision is important when undertaking sequential cataract surgery. Our case describes a patient whose adaptation to monovision was only recognised after its reversal. Predisposing factors are discussed and lessons highlighted.