LASIK versus PRK for high astigmatism.
Astigmatism
Cylinder
LASIK
PRK
Refractive surgery
Journal
International ophthalmology
ISSN: 1573-2630
Titre abrégé: Int Ophthalmol
Pays: Netherlands
ID NLM: 7904294
Informations de publication
Date de publication:
Jun 2021
Jun 2021
Historique:
received:
02
01
2020
accepted:
05
03
2021
pubmed:
23
3
2021
medline:
22
6
2021
entrez:
22
3
2021
Statut:
ppublish
Résumé
To compare the refractive outcomes of laser in situ keratomileusis (LASIK) and photorefractive keratectomy (PRK) for myopic astigmatism of 3 diopters (D) or more. Retrospective matched comparative study. This study include consecutive myopic patients (SE 0 to -10 D) undergoing LASIK or PRK between 2007 and 2016 with astigmatism of 3 to 6 D, and postoperative follow-up of at least 30 days for LASIK and 60 days for PRK, compared outcomes of LASIK and PRK eyes. The LASIK and PRK groups comprised 175 eyes of 175 patients each, with median follow-up of 39 and 139 days, respectively (P < 0.001). Mean preoperative manifest astigmatism was -3.35 ± 0.46 and -3.42 ± 0.51 D (P = 0.92), postoperative SE was -0.43 ± 0.55 and -0.16 ± 0.64 D (P < 0.001), and arithmetic astigmatism was -0.59 ± 0.46 and -0.88 ± 0.60 D (P < 0.001), for the LASIK and PRK groups, respectively. Fifty-seven and 64.0% eyes had postoperative SE within ± 0.5 D of emmetropia (P = 0.19), and 57.7 and 38.8% eyes were within 0.5 D of attempted astigmatic correction (P < 0.001) for the LASIK and PRK groups, respectively. More PRK eyes were overtreated regarding both SE and astigmatism than LASIK eyes (P < 0.001). The efficacy and safety indices were close to 1.0 in both groups. The surgically induced astigmatism, magnitude of error, index of success, correction index and flattening index were all better in the LASIK group. Both LASIK and PRK achieve good outcomes in high astigmatism. LASIK achieved mild superiority over PRK.
Identifiants
pubmed: 33751303
doi: 10.1007/s10792-021-01766-5
pii: 10.1007/s10792-021-01766-5
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
2091-2098Références
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