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    Finding a fix for irregular astigmatism after PK

    Early results show positive results with transepithelial topography-guided-PRK

     

    At 12 months, 30% of eyes (6 of 20 eyes) had UCDVA of 20/40 or better postoperatively compared with none before surgery. Fifty percent (10 eyes) had an improved CDVA of one line or more; 30% (6 eyes) gained two or more lines. Ten percent (2 eyes) lost two or more lines.

    The mean preoperative topographic cylinder was 5.07 D, Dr. Simon noted.

    The mean astigmatism reduction was 2.62 D, and the mean spherical equivalent improved from - 1.99 D to - 0.96 D. There was no regression within the 12-month period.

    No eyes had visually significant haze or infection, although five eyes had delayed epithelial healing, but no long-term sequelae. One eye had an early rejection in the fellow eye.

    “This study demonstrates an alternative treatment for highly symptomatic contact lens intolerant patients with irregular astigmatism following PK,” Dr. Holland concluded.

    Advantages of the excimer laser used during treatment included high-speed, multidirectional tracking, and cyclotorsion control, he added. 

     

    Simon P. Holland, MD

    E: [email protected]

    This article was adapted from a presentation at the 2017 meeting of the American Society of Cataract and Refractive Surgery. Dr. Holland has financial interests with Alcon Laboratories, Allergan, and Schwind.

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