Management of myopic shift and central corneal steepening resulting from superficial corneal opacity in a patient with previous radial keratotomy: a case report

Late-onset central corneal steepening with myopic shift following RK may be a sign of corneal ectasia disorders such as keratoconus. It is important to recognize corneal opacity as a distinct etiology of central corneal steepening, which may mimic corneal ectasia. A comprehensive evaluation of patients with corneal topography and ASOCT may reveal the etiology of central corneal steepening and further guide treatment decisions.