Excimer laser photorefractive keratectomy for myopia: Two years of follow-up

Authors

  • Patrick PC Tong The 1-Center, Kowloon, Hong Kong
  • TW Wong Department of Community & Family Medicine, The Chinese University of Hong Kong

Abstract

Aim: To study the safety and efficacy of laser photorefractive keratectomy in different myopia groups. 

Materials and methods: 51 eyes of 30 patients underwent photorefractive keratectomy (PRK) with a 193nm excimer laser to correct myopia. The eyes were divided into three groups: low, moderate, and high myopia.

Results: Two years after PRK, 100% of the eyes in the low myopia group, 86.7% in the moderate myopia group, and 28.6% in the high myopia group achieved an uncorrected visual acuity of 20/40 or better. In the low myopia group, 100% were within ±1 diopter (D) of emmetropia, as were 86.7% in the moderate group and 23.8% in the high myopia group. None of the eyes in the low myopia group, 13.3% in the moderate myopia group, and 57.1% in the high myopia groupregressed more than 1D over the observation period. No significant complications were observed.

Conclusion: Photorefractive keratectomy can be considered as an effective and safe procedure for correcting myopia in the low and moderate range.

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Published

1997-06-01

How to Cite

1.
Tong PP, Wong T. Excimer laser photorefractive keratectomy for myopia: Two years of follow-up. Hong Kong J Ophthalmol [Internet]. 1997Jun.1 [cited 2021Feb.27];1(2):75-9. Available from: https://hkjo.hk/index.php/hkjo/article/view/178

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Section

Original Articles