December 2005
Volume 5, Issue 12
Free
OSA Fall Vision Meeting Abstract  |   December 2005
Subjective and objective measures of quality of vision and their relation to simulated night driving performance after LASIK for high myopia
Author Affiliations
  • Corina van de Pol
    Navy Refractive Surgery Center, San Diego CA
  • Sandor Kaupp
    Navy Refractive Surgery Center, San Diego CA
  • Thomas Salmon
    Northeastern State University, College of Optometry, Tahlequah, OK
  • Diana Lozano
    Navy Refractive Surgery Center, San Diego CA
  • Steve Schallhorn
    Navy Refractive Surgery Center, San Diego CA
Journal of Vision December 2005, Vol.5, 21. doi:10.1167/5.12.21
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      Corina van de Pol, Sandor Kaupp, Thomas Salmon, Diana Lozano, Steve Schallhorn; Subjective and objective measures of quality of vision and their relation to simulated night driving performance after LASIK for high myopia. Journal of Vision 2005;5(12):21. doi: 10.1167/5.12.21.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

PURPOSE: To evaluate visual symptoms, ocular higher order aberrations (HOA) and visual performance in the assessment of changes in simulated night driving performance after high myopia LASIK.

METHODS: Detection and identification distances of 2 different road signs and a pedestrian hazard during nighttime driving (rural road at 55 mph, Vision Research Sciences Corp.) with and without glare was measured in 105 subjects before and 6 months fter conventional LASIK (mean pre-op MSE -6.32D). Each eye was tested independently. Visual symptoms were assessed using a survey instrument to determine night glare/halo complaint. Wavefront aberrations were measured using the VISX WaveScan and were analyzed in terms of overall higher order, spherical aberration, coma, and trefoil aberrations; indices based on HOA were developed to assess potential quality of vision. Visual performance was assessed using the photopic 5% contrast acuity test.

RESULTS: Pre-operative level of myopia (amount of correction), subjective night glare/halo complaint (index of multiple questions), HOAs, and 5% contrast acuity all correlated with the change in simulated night driving from pre- to post-LASIK surgery (α=0.05).

CONCLUSIONS: Night driving visual performance can be degraded after conventional myopic LASIK. Changes in the quality of vision, measured objectively and subjectively, correlated with night driving visual performance.

van de Pol, C. Kaupp, S. Salmon, T. Lozano, D. Schallhorn, S. (2005). Subjective and objective measures of quality of vision and their relation to simulated night driving performance after LASIK for high myopia [Abstract]. Journal of Vision, 5(12):21, 21a, http://journalofvision.org/5/12/21/, doi:10.1167/5.12.21. [CrossRef]
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