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Laser in situ keratomileusis versus surface ablation: visual outcomes and complications
- Source :
- Journal of cataract and refractive surgery. 33(12)
- Publication Year :
- 2007
-
Abstract
- Purpose To compare the visual outcomes and complications of laser in situ keratomileusis (LASIK) with those of surface treatment by laser-assisted subepithelial keratectomy (LASEK), photorefractive keratectomy with mechanical epithelial removal (M-PRK), and transepithelial photorefractive keratectomy (T-PRK). Setting Tertiary care eye center. Methods This retrospective review comprised all cases of LASIK, LASEK, M-PRK, and T-PRK performed at King Khaled Eye Specialist Hospital between July 1, 2004, and June 30, 2005. Separate statistical analyses were performed for eyes with low to moderate myopia (spherical equivalent [SE] less than −6.00 diopters [D]) and high myopia (SE −6.00 to −11.25 D). Results Of 696 eyes that met the inclusion criteria, 464 had LASIK, 104 had LASEK, 69 had M-PRK, and 59 had T-PRK. Eyes with low to moderate myopia had a statistically significantly smaller mean difference between logMAR final postoperative uncorrected visual acuity (UCVA) and preoperative best spectacle-corrected visual acuity (BSCVA) after T-PRK and M-PRK than after LASIK or LASEK. A higher percentage of eyes with high myopia had a final UCVA within ±2 lines of the preoperative BSCVA with T-PRK than with LASIK, LASEK, or M-PRK. There were more major non-flap–related complications after LASEK than after LASIK, M-PRK, or T-PRK. Conclusions In eyes with low to moderate myopia, T-PRK and M-PRK provided slightly better visual outcomes than LASIK or LASEK. In eyes with high myopia, T-PRK provided better visual outcomes than LASIK, LASEK, and M-PRK. Laser in situ keratomileusis was associated with the most major postoperative complications.
- Subjects :
- Adult
Male
medicine.medical_specialty
Visual acuity
genetic structures
Adolescent
medicine.medical_treatment
Keratomileusis, Laser In Situ
Visual Acuity
Keratomileusis
Spherical equivalent
Photorefractive Keratectomy
Cornea
Postoperative Complications
Ophthalmology
medicine
Myopia
Humans
Intraoperative Complications
Dioptre
Aged
Retrospective Studies
Keratectomy, Subepithelial, Laser-Assisted
business.industry
LASIK
Middle Aged
equipment and supplies
Ablation
eye diseases
Sensory Systems
Photorefractive keratectomy
Surgery
medicine.anatomical_structure
Female
Lasers, Excimer
sense organs
medicine.symptom
business
Subjects
Details
- ISSN :
- 08863350
- Volume :
- 33
- Issue :
- 12
- Database :
- OpenAIRE
- Journal :
- Journal of cataract and refractive surgery
- Accession number :
- edsair.doi.dedup.....3c21cfb48a29c8f1faef40fab58d2fa6