Articles Vol. 64 No. 6 21/10/2023

17. CHANGES IN CENTRAL CORNEAL THICKNESS AFTER SMILE SURGERY

Dang Thi Nhu Quynh1,2, Nguyen Quynh Hoa3,4, Cung Hong Son5,6, Pham Duy Thanh3,4, Dinh Thi Anh Duong3,4, Dang Duc Nhu7,8
1 DND International Eye Hospital
2 Bệnh viện Mắt Quốc tế DND
3 Hanoi Medical University
4 Trường Đại học Y Hà Nội
5 National Institute of Ophthalmology
6 Bệnh viện Mắt Trung Ương
7 University of Medicine and Pharmacy, Hanoi National University
8 Trường Đại học Y Dược, Đại học Quốc gia Hà Nội
Corresponding author: dangnhu258@yahoo.com
DOI: 10.52163/yhc.v64i6.822
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Keywords
Corneal thickness, SMILE.
Abstract

Purpose: To compare central corneal thickness before and after SMILE surgery.

Methods: A prospective study, the clinical description was conducted on 40 eyes (21 patients) with myopic and myopic astigmatism who had been studied by Smile surgery. Central corneal thickness measurements were performed preoperatively, 1 week, 1 month, 3 months, 6 months postoperatively.

Results: 52% male and 48% female, with a mean age of 23.18 ± 4.14 years, were analyzed. The spherical equivalents were -6.41±1.67 (ranging from -1.50D to – 9.75D). The mean central corneal thickness before surgery was 545.48±27,85 µm. It significantly decreased to 436.65 ± 33.83µm at 1 week, the increased to 441.73 ± 33.04 µm at 1 month, kept on increasing to 444.00 ± 32.58 µm at 3 months and became stable 6 months after surgery.

Conclusion: Mean central corneal thickness decreased after Smile surgery and later increased from 1 month to 3 months, then stable 6 months after surgery.

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