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- Title
The Effect of Chalazion Excision on Corneal Aberrometric and Densitometric Values.
- Authors
Oncul, Hasan; Yildirim, Yusuf; Caglayan, Mehtap; Dag, Umut; Alakus, Mehmet Fuat
- Abstract
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. Results: The total RMS measurement was 1.64±0.48 µm in Group 1, 1.35±0.32 µm in Group 2, and 1.17±0.38 µm in Group 3 (Group 1-2: p=0.007, Group 1-3: p<0.001, Group 2-3: p=0.173). The mean spherical aberration value was 0.183±0.057 µm in Group 1, 0.157±0.048 µm in Group 2, and 0.144±0.050 µm in Group 3 (Group 1-2: p=0.104, Group 1-3: p=0.004, Group 2-3: p=0.781). The total corneal densitometric measurement was 15.95±1.80 gray scale units (GSU) in Group 1, 14.76±1.76 GSU in Group 2, and 14.33±1.49 GSU in Group 3 (Group 1-2: p=0.01, Group 1-3: p<0.001, Group 2-3: p=0.804). Conclusion: It was observed that some corneal aberration and corneal densitometry values were higher in patients with a chalazion compared with those of healthy individuals, and there was a decrease in corneal aberration and densitometry values after surgical excision.
- Subjects
DENSITOMETRY; CORNEAL sensitivity; CORNEAL topography; SPHERICAL aberration; SURGICAL excision; OPTICAL aberrations
- Publication
Beyoglu Eye Journal, 2021, Vol 6, Issue 3, p191
- ISSN
2459-1777
- Publication type
Article
- DOI
10.14744/bej.2021.62533