Relationship between asymmetric central corneal thickness and glaucomatous visual field loss within the same patient.

Purpose: Considering that thinner central corneal thickness (CCT) has been identified as a significant glaucoma risk factor, this study was designed to determine whether patients with glaucoma with asymmetric CCT demonstrate greater visual field loss in their thinner CCT eye compared with their thicker CCT eye.

Methods: Patient logs were used to retrospectively identify patients with primary open-angle glaucoma (POAG) and patients with normal-tension glaucoma (NTG) with CCT asymmetry of 10 microm or greater. Severity of glaucoma was determined using Advanced Glaucoma Intervention Study (AGIS) visual field scoring criteria.