Superior Keratoconus: A Case Report and Review of Literature

Abstract

Superior keratoconus (SKC) is a rare subtype of KC characterized by corneal steepening in the superior region, which may mimic other ocular surface irregularities. These irregularities can arise from contact lens warpage, upper lid ptosis, superficial corneal scars, Terrien's marginal degeneration (TMD), and dry eyes. Accurate diagnosis of superior KC can be challenging, but newer tomographic modalities can aid in differentiating it from other conditions. This review highlights the clinical features of superior KC and discusses the role of advanced imaging techniques in improving diagnostic accuracy.