22 Sep 20 Year Follow Up of PRK Eye Surgery: Procedure Found Safe With Slight Increase in Myopia

Posted at 11:49h in Author Interviews, Ophthalmology by

Dr. David O'Brart Keratoconus Research Institute, Department of Ophthalmology St. Thomas' Hospital, London, United KingdomMedicalResearch.com Interview with:
Dr. David O’Brart
Keratoconus Research Institute, Department of Ophthalmology
St. Thomas’ Hospital, London, United Kingdom

 

Medical Research: What are the main findings of the study?

Dr. O’Brart: There was a slight but significant increase in myopic spherical equivalent refractive error after Photorefractive Keratectomy between 1 and 20 years, particularly in those under 40 at the time of treatment and female patients.

Corneal curvature/power remained unchanged but axial length increased over two decades. The procedure was safe with no long-term sight-threatening complications and improvements in CDVA (corrected distance visual acuity) and corneal transparency with time.


Medical Research: What was most surprising about the results?

Dr. O’Brart:

  • Increase in axial length even in low myopes (-3.00D) and those over 40 over 20 year follow-up.
  • Possible increased regression of effect in females.

Medical Research: What recommendations do you have for future research as a result of this study?

Dr. O’Brart: Further long-term studies are required,

Citation:

Twenty-Year Follow-Up of a Randomized Prospective Clinical Trial of Excimer Laser Photorefractive Keratectomy
O’Brart DP1, Shalchi Z2, McDonald RJ2, Patel P2, Archer TJ3, Marshall J4.
Am J Ophthalmol. 2014 Oct;158(4):651-663.e1. doi: 10.1016/j.ajo.2014.06.013. Epub 2014 June 25

MedicalResearch.com Editor’s note: If you are considering ‘Laser Eye Surgery’ please discuss the difference between PRK and LASIK surgery with your Ophthalmologist.

Last Updated on September 22, 2014 by Marie Benz MD FAAD

364
Tags:
, , ,