Original Article
Comparison of postoperative recovery after TransPRK and LASEK
ZHAO Wei, DONG Zehong, SHI Rong, WANG Yusheng, CHEN Xueting, DONG Lirong, FENG Jie
Published 2017-05-25
Cite as Chin J Optom Ophthalmol Vis Sci, 2017, 19(5): 296-300. DOI: 10.3760/cma.j.issn.1674-845X.2017.05.008
Abstract
ObjectiveTo observe differences in the postoperative recovery after trans-epithelial photorefractive keratectomy (TransPRK) or laser epithelial keratomileusis (LASEK).
MethodsA total of 224 patients with myopia were enrolled in this prospective study after undergoing TransPRK or LASEK. The post-surgical day when the contact lenses were removed were recorded. Uncorrected visual acuity (UCVA) was recorded on the first day after surgery. UCVA and spherical equivalent (SE) were recorded on the days after contact lens removal, and again on the first and third months after surgery. Data were analyzed using t test or chi- square test.
ResultsFor LASEK group, the average time for contact lens removal was 5.46 ± 1.12 d, and the percent of patients for whom the lenses were removed on days 3 and 5 after surgery were 57.8% and 95.6% respectively. For TransPRK group, the average time for contact lens removal was 3.82±0.98 d, and the percent of patients for whom the lenses were removed on days 3 and 5 after surgery were 89.6% and 100% respectively. UCVA when wearing contact lenses on day 1 after LASEK and TransPRK was 0.42 ± 0.05 and 0.32 ± 0.06, respectively (t=- 17.81, P<0.001). UCVA after contact lens removal was 0.23±0.17 and 0.34±0.21 (t=5.98, P<0.001). SE after contact lens removal was 0.39 ± 0.71 diopter (D) and 0.33 ± 0.66 D, respectively (t=- 1.22, P<0.001). There were no significant differences for UCVA or SE between the two types of surgeries at the first and third months.
ConclusionCompared to LASEK, TransPRK has faster recovery times, shorter times for contact lens removal, and the same UCVAs for the long term.
Key words:
Keratectomy, subepithelial, laser- assisted; Trans- epithelial photorefractive keratectomy; Laser corneal surface refractive surgery; Vision recovery
Contributor Information
ZHAO Wei
Department of Ophthalmology, Xijing Hospital, Institute of Ophthalmology of Chinese PLA, the Fourth Military Medical University, Xi′an 710032, China
DONG Zehong
SHI Rong
WANG Yusheng
CHEN Xueting
DONG Lirong
FENG Jie