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Related Experiment Videos

Some problems after photorefractive keratectomy

J H Kim1, W J Sah, T W Hahn

  • 1Department of Ophthalmology, Kangnam St. Mary's Hospital, Catholic University Medical College, Seoul, Korea.

Journal of Refractive and Corneal Surgery
|March 1, 1994
PubMed
Summary

Photorefractive keratectomy (PRK) is generally safe and effective, with most patients achieving good vision. However, a small percentage experience complications like corneal haze or elevated eye pressure, requiring further treatment.

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Area of Science:

  • Ophthalmology
  • Refractive Surgery

Background:

  • Photorefractive keratectomy (PRK) is a common laser eye surgery.
  • Assessing postoperative complications is crucial for patient outcomes.

Purpose of the Study:

  • To investigate the incidence and nature of postoperative complications following PRK.
  • To evaluate visual acuity outcomes and refractive stability after PRK.

Main Methods:

  • Analysis of data from 1821 patients (2920 eyes) who underwent PRK.
  • Monitoring for complications such as corneal haze, ocular hypertension, and visual acuity decrease.
  • Two-year follow-up for predictability and stabilization assessment.

Main Results:

  • Corneal haze (grade 2+) occurred in 0.38% of eyes; corticosteroid-induced ocular hypertension in 0.14%.

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  • A decrease in best spectacle corrected visual acuity was noted in 0.27% of eyes due to various causes.
  • The majority of patients experienced excellent visual outcomes with good predictability and stabilization at 2 years.

    • Conclusions:

    • PRK demonstrates good predictability and long-term stabilization.
    • While most patients achieve excellent visual outcomes, a small minority may experience complications.
    • Management strategies for complications like corneal haze and ocular hypertension include repeat PRK and trabeculectomy.