December 2002
Volume 43, Issue 13
ARVO Annual Meeting Abstract  |   December 2002
Changes In Vision Quality (second Order Perception) After Lasik In Myopia
Author Affiliations & Notes
  • C Verges
    Ophthalmology Institut Universitari Dexeus Barcelona Spain
  • M Lleonart
    Ophthalmology Institut Universitari Dexeus Barcelona Spain
  • S Badenas
    Ophthalmology Institut Universitari Dexeus Barcelona Spain
  • JL Moliner
    Ophthalmology Universitat Autònoma de Barcelona IUDexeus Barcelona Spain
  • Footnotes
    Commercial Relationships   C. Verges, None; M. Lleonart, None; S. Badenas, None; J.L. Moliner, None.
Investigative Ophthalmology & Visual Science December 2002, Vol.43, 4146. doi:
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    • Get Citation

      C Verges, M Lleonart, S Badenas, JL Moliner; Changes In Vision Quality (second Order Perception) After Lasik In Myopia . Invest. Ophthalmol. Vis. Sci. 2002;43(13):4146.

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

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Abstract: : Purpose:To study induced changes in myopia Lasik surgery on motion perception of second order. Methods:The magnocellular via is analyzed by a motion test of second order.This is generated through a grid where contrasting frequencies are adjusted and projected in a monitor 50 cm.far from the patient, evaluating the different eccentricities. An emmetropic control group is compared with an ametropic group of patients that underwent Lasik surgery. The comparison was preoperative and postoperatively carried out. Results:There were not significant, preop.or postoperatively, differences among the sound emmetropic and the less than 4D myopic groups patients.In 4 to 7D myopic patients reported motion perception slight postop decrease,until the follow up control at 4 months when it returned to normal.Alterations were registered among 7 and 12D myopic patients, and unrecoverable at final 6-months follow up control. Conclusion:Lasik surgery in myopia higher than 7D induces changes upon the visual perception mechanisms. These changes are expressed through the second order motion.

Keywords: 548 refractive surgery: LASIK • 619 vision and action • 510 perceptual organization 

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