Оценка топографии и томографии роговицы в здоровом глазу пациентов с односторонним кератоконусом для раннего выявления субклинического кератоконуса

Evaluation of corneal topography and tomography in fellow eyes of unilateral keratoconus patients for early detection of subclinical keratoconus.

Detecting keratoconus in its earliest stage is one of the most important aspects of avoiding iatrogenic corneal ectasia after refractive surgery. Based on a large series of cases reported in the literature, Randleman et al. proposed a score that can be used to predict the risk of ectasia (Ectasia Risk Score) to prevent the development of post-refractive surgery corneal ectasia. This score takes into account the preoperative topographic appearance, the preoperative central corneal thickness, the residual posterior wall, the patient's age, and the planned correction.[¹] Among these various parameters, the presence of undiagnosed early keratoconus is the leading risk factor for post-refractive surgery ectasia.[²] Studies suggest that subclinical or clinical keratoconus is found in 1-6% of myopic patients undergoing refractive surgery.[³,⁴,⁵] Advanced keratoconus can be diagnosed with typical biomicroscopic, retinoscopic, and topographic findings. However, detection of the disease in the preclinical stage is difficult.