A chalazion is a lipogranulomatous inflammation that occurs due to blockage of the secretory ducts of the meibomian glands in the eyelids and may affect all ages of people (1). Causes of meibomian gland dysfunction, such as chronic blepharitis, rosacea, and seborrheic dermatitis, are risk factors for the development of chalazion (2). Ocular disorders such as cosmetic disturbances in the eyelids, visual disturbances, foreign body sensation, and ptosis may also occur (1).Corneal transparency is considered as an indicator of corneal health and may vary with many factors that cause corneal and endothelial dysfunction (3). Corneal transparency, which is evaluated subjectively by slit-lamp biomi-
Objectives:The aim of this study was to investigate the effect of chalazion excision on corneal aberrations and corneal densitometry. Methods: Thirty-six patients with a chalazion in 1 eyelid and 40 healthy subjects were included in the study. Corneal aberration parameters of total root mean square (RMS), RMS high-order aberration (HOA), horizontal trefoil, oblique trefoil, horizontal coma, vertical coma, and spherical aberration values were measured using Scheimpflug corneal topography (Pentacam HR; Oculus Optikgeräte GmbH, Wetzler, Germany). Corneal densitometry values measured from 4 regions of the cornea (0-2, 2-6, 6-10, and 10-12 mm) and 4 corneal depths (anterior, central, posterior, and total) were recorded. Preoperative measurements of the patients (Group 1), postoperative first-month measurements (Group 2), and control group (Group 3) measurements were compared.