Long Term Results Of Prk In High And Very High Myopia
Published 2024 - 42nd Congress of the ESCRS
Reference: PP26.03 | Type: Free paper | DOI: 10.82333/dg9f-rm42
Authors: Dana Garzozi* 1 , Shawn Sapir 2 , Tzahi Sela 3 , Gur Munzer 3 , Igor Kaiserman 4
1ophthalmology,clalit health services,herzliya,Israel, 2ophthalmology,Barzilai University Medical Center,Ashkelon,Israel, 3ophthalmology,care laser center,Tel-aviv,Israel, 4ophthalmology,Barzilai University Medical Center,Ashkelon,Israel;ophthalmology,care laser center,Tel-aviv,Israel
Purpose
To assess the long-term refractive stability and quality of vision in high, and very high myopic patients following myopic PRK.
Setting
Care Vision Laser Centre, Tel-Aviv, Israel.
Methods
Fifty-seven eyes (42 patients) with manifest refraction > 8 diopter (D) of myopia were evaluated 10-18 years after PRK. We documented postoperative UCVA, BSCVA, residual refractive error, and quality of vision (QOV questionnaire). We compared high myopic patients (8D-9D) to very high myopic patients (9D-13D). Mean follow-up time was 13 years (range 10-18).
Results
At last follow-up, high myopic and very high myopic presented a mean UCVA of 0.69±0.28 and 0.71±0.26 (p=0.86) respectively. Mean BSVCA was 0.94±0.07 and 0.94±0.06 (p=0.78). On the QOV questionnaire, high myopic patients reported frequent dysphotopsias including glare 16.6% (N=4), halos 25% (N=6), starbursts 25%( N=6) compared with 30.7% (N=4), 38.4% (N=5), and 23.1%(N=3) in the very high myopes respectively. Impaired image clarity such as focusing difficulties 8.33% (N=2), blurred vision 16.67% (N=4), hazy vision 8.33% (N=2) were reported by the high myopic group vs 7.69% (N=1), 7.69% (N=1), and 0% (N=0) in the very high myopes respectively. 33.3% of high myopes vs 23.08% in very high myopes (p=0.48) reported they resumed wearing glasses.
Conclusions
Upon long-term follow-up, PRK for high and very high myopia has proven to be a safe and effective procedure, enhancing both vision and quality of life. However, some of them did return to wearing low prescription glasses and some did report dysphotopsias.