ISSN: 2459 - 1777 | E-ISSN 2587-0394
Volume : 6 Issue : 3 Year : 2021

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The Effect of Chalazion Excision on Corneal Aberrometric and Densitometric Values [Beyoglu Eye J]
Beyoglu Eye J. 2021; 6(3): 191-199 | DOI: 10.14744/bej.2021.62533

The Effect of Chalazion Excision on Corneal Aberrometric and Densitometric Values

Hasan Öncül, Yusuf Yıldırım, Mehtap Çaglayan, Umut Dağ, Mehmet Fuat Alakuş
Department of Ophthalmology, University of Health Sciences Gazi Yasargil Training and Research Hospital, Diyarbakir, Turkey

INTRODUCTION: 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).
DISCUSSION AND 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.

Keywords: Chalazion, corneal densitometry, pentacam HR

Hasan Öncül, Yusuf Yıldırım, Mehtap Çaglayan, Umut Dağ, Mehmet Fuat Alakuş. The Effect of Chalazion Excision on Corneal Aberrometric and Densitometric Values. Beyoglu Eye J. 2021; 6(3): 191-199

Corresponding Author: Hasan Öncül, Türkiye
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