Title: Cataract Surgery in Patients with Underlying Keratoconus: A Focused Review.

An underlying diagnosis of keratoconus (KCN) can complicate cataract surgery. Herein, the results of a focused review of the literature pertaining to cataract surgery in patients with KCN are detailed. Topics essential for the appropriate management of this patient population are discussed. First, the individual and shared epidemiology and pathophysiology of cataract and KCN are reviewed. Then, the theory and approach to intraocular lens (IOL) power calculation are discussed, highlighting particularities and pitfalls of this exercise when performed in patients with KCN. Finally, several special-although not uncommon-management scenarios and questions are addressed, such as surgical planning in cases where corneal stabilization or tissue replacement interventions are also necessitated.