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    Tool provides standard for assessing LASIK patient-reported outcomes

    New questionnaire adds insight into satisfaction, eye-related symptoms, daily function

     

    The PROWL studies were not designed to investigate the safety and efficacy of LASIK, but instead to evaluate the quality of the questionnaire, Dr. Solomon noted.

    Overall, 98% of participants in the PROWL studies reported being satisfied with their surgery at their final visit. Visual symptoms were reported at baseline by a large majority of patients in both the PROWL-1 and PROWL-2 cohorts (67% and 73%, respectively), and the prevalence of these symptoms decreased after LASIK.

    Dry eye symptoms also decreased. At baseline, 55% of patients in PROWL-1 and 44% in PROWL-2 had normal Ocular Surface Disease Index scores. At the last follow-up visit, those rates increased to 73% and 65%, respectively.

    Within the minority subsets of patients who had no visual symptoms at baseline, new symptoms were reported at 6 months in PROWL-1 by 36% and at 3 months in PROWL-2 by 46%. Moderate or severe dry eye symptoms developed in 4% to 6% of patients who had no dry eye symptoms prior to LASIK. For each type of visual symptom, less than 1% of patients experienced difficulties performing their usual activities because of a visual symptom.

    It is important to note that patients were evaluating their visual symptoms without having the benefit of an enhancement or with their BCVA.

    It is likely that many of the symptoms reported would be improved with an enhancement procedure in the case of night-vision symptoms or with time in the case of dry eye. Regardless, the presence of these symptoms for the most part did not have a negative impact on a patient’s daily function or patient satisfaction, Dr. Solomon said.

    “The most important finding for the PROWL study . . . is the new validated questionnaire that will hopefully provide valuable insight in the future and make this already successful procedure even better,” he said.

    To better understand which patients are more likely to be dissatisfied postoperatively, a large observational study, including participants with long-term follow-up after LASIK surgery, would be necessary to accurately estimate the prevalence and find useful predictors for these perceptions, Dr. Eydelman said.

     

    Kerry D. Solomon, MD

    E: Kerry.Solomon@carolinaeyecare.com

    Dr. Solomon is a consultant to, speaker for, and/or receives research support from companies marketing equipment used in LASIK.

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