PMID- 9352481
OWN - NLM
STAT- MEDLINE
DCOM- 19971124
LR  - 20220210
IS  - 1081-597X (Print)
IS  - 1081-597X (Linking)
VI  - 13
IP  - 6
DP  - 1997 Sep-Oct
TI  - Comparison of laser in situ keratomileusis and photorefractive keratectomy to 
      correct myopia from -1.25 to -6.00 diopters.
PG  - 528-34
AB  - BACKGROUND: We evaluated the safety and efficacy of laser in situ keratomileusis 
      (LASIK) for the correction of low to moderate amounts of myopia (-1.25 to -6.00 
      D). METHODS: Photorefractive keratectomy (PRK) was performed on 432 eyes and 
      LASIK on 137 eyes with a Chiron Keracor 116 excimer laser. Uncorrected and 
      corrected visual acuity, corneal sensitivity, contrast sensitivity, and corneal 
      topography were examined before and after surgery. RESULTS: One-year follow-up of 
      307 eyes in the PRK group and 103 eyes in the LASIK group was achieved. At 1 
      year, 83% (85 of 103) of LASIK eyes and 72% (221 of 307) of PRK eyes had an 
      uncorrected visual acuity of 1.0 or better. Eighty-nine percent (92 of 103) of 
      LASIK eyes and 83% (255 of 307) of PRK eyes had a refractive error within +/- 
      1.00 D of emmetropia; 71% (73 of 103) of LASIK eyes and 61% (188 of 307) of PRK 
      eyes were within +/- 0.50 D of emmetropia. Contrast sensitivity and corneal 
      sensitivity were reduced in both groups at the early postoperative stage but 
      gradually returned to preoperative values; their recovery took about 3 months in 
      LASIK eyes and 6 to 12 months in PRK eyes. CONCLUSION: LASIK is safe and more 
      predictable than PRK to correct low to moderate amounts of myopia. Recovery from 
      LASIK is faster than after PRK.
FAU - Wang, Z
AU  - Wang Z
AD  - Zhongshan Ophthalmic Center, Sun Yat-sen University of Medical Sciences, 
      Guangzhou, Peoples Republic of China. gzstwang@public1.guangzhou.gd.cn
FAU - Chen, J
AU  - Chen J
FAU - Yang, B
AU  - Yang B
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - J Refract Surg
JT  - Journal of refractive surgery (Thorofare, N.J. : 1995)
JID - 9505927
SB  - IM
MH  - Contrast Sensitivity
MH  - Cornea/pathology/*surgery
MH  - Corneal Topography
MH  - Corneal Transplantation/methods
MH  - Follow-Up Studies
MH  - Humans
MH  - Laser Therapy/*methods
MH  - Lasers, Excimer
MH  - Myopia/*surgery
MH  - Photorefractive Keratectomy/*methods
MH  - Refraction, Ocular
MH  - Safety
MH  - Time Factors
MH  - Treatment Outcome
EDAT- 1997/11/14 00:00
MHDA- 1997/11/14 00:01
CRDT- 1997/11/14 00:00
PHST- 1997/11/14 00:00 [pubmed]
PHST- 1997/11/14 00:01 [medline]
PHST- 1997/11/14 00:00 [entrez]
AID - 10.3928/1081-597X-19970901-09 [doi]
PST - ppublish
SO  - J Refract Surg. 1997 Sep-Oct;13(6):528-34. doi: 10.3928/1081-597X-19970901-09.