Keratoconus Corneal Posterior Surface Characterization According to the Degree of Visual Limitation

Purpose: To characterize posterior corneal surface features in patients with keratoconus and healthy controls and correlate them with the severity of the disease according to visual limitation. Methods: Retrospective, comparative, clinical study including 477 cases, 374 keratoconic eyes and 103 healthy corneas. Patients were classified according to the degree of visual limitation. The corneal posterior surface including shape indices and keratoconus screening indices was evaluated using the rotating Scheimpflug camera and Placido disc topographer. Results: Dioptric power of the posterior corneal surface increases linearly as corrected distance visual acuity deteriorates (r> 0.700; P
Source: Cornea - Category: Opthalmology Tags: Clinical Science Source Type: research