NGHIÊN CỨU SỰ THAY ĐỔI CHỈ SỐ NHÃN ÁP SAU PHẪU THUẬT RELEX SMILE TRÊN NGƯỜI BỆNH CÓ CHIỀU DÀY GIÁC MẠC DÀY

Abstract

Purpose: To evaluate the change in intraocular pressure after ReLEX SMILE surgery in patients with thick corneal thickness. Materials and methods: The study was conducted on 40 eyes of 20 myopia – astigmatism patients treated by the ReLEX SMILE method at the National Eye Hospital from March 2020 to October 2020, designed as a prospective, clinically descriptive study without a control group. Results: The average age of the study group was 19.9±2.8 years old, visual acuity at all the time of post-operative evaluation was >20/30; The average corneal thickness before surgery was 575.1± 25mm, 3 months after surgery was 499.5±28mm; 50% of patients had an average preoperative spherical equilalent (-3.25D - -6D). Intraocular pressure before surgery was 16.35 ± 2.53 mmHg, after surgery 3 months it was 10.5 ± 2.1 mmHg. The difference in intraocular pressure between 1 week and 1 month compared to that before surgery is significant difference with p<0.001.Conclusion:The average intraocular pressure after ReLEX Smile surgery decreased compared to the preoperative intraocular pressure level, which is closely related to the equivalent spherical refraction, the amount of corneal tissue removed and the thickness of the remaining cornea.Therefore, close monitoring of patients after refractive surgery, including periodic checking of intraocular pressure, is extremly important in assessing ocular function. It is necessary to closely evaluate the patient's history to screen and evaluate the glaucoma disease.