June 2017
Volume 58, Issue 8
Open Access
ARVO Annual Meeting Abstract  |   June 2017
Quality of Vision After Femtosecond Laser or Mechanical Keratome for Laser In Situ Keratomileusis: A Prospective Randomized Contralateral Eye Study
Author Affiliations & Notes
  • Irma Muminovic
    Ophthalmology, Stanford University, Palo Alto , California, United States
  • Edward E Manche
    Ophthalmology, Stanford University, Palo Alto , California, United States
  • Footnotes
    Commercial Relationships   Irma Muminovic, None; Edward Manche, Abbott Medical Optics, Inc. (C), Allergan, Inc. (C), Avellino Laboratoires, Inc. (C), Calhoun Vision, Inc. (I), Carl Zeiss Meditec, Inc. (C), Guidepoint Global (C), Seros Medical, LLC (I), Seros Medical, LLC. (P), Veralas, Inc. (I)
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science June 2017, Vol.58, 5264. doi:
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      Irma Muminovic, Edward E Manche; Quality of Vision After Femtosecond Laser or Mechanical Keratome for Laser In Situ Keratomileusis: A Prospective Randomized Contralateral Eye Study. Invest. Ophthalmol. Vis. Sci. 2017;58(8):5264.

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

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Abstract

Purpose : To compare the effect of femtosecond laser or mechanical keratome for LASIK on subjective quality of vision.

Methods : Fifty-one patients were randomized to receive femtosecond laser for LASIK for one eye and mechanical keratome for LASIK for the fellow eye. Study participants completed a questioner assessing quality of vision and visual symptoms (daytime and nighttime glare, nighttime and daytime clarity, halos, haze, dry eye, severe dry eye, grittiness, fluctuating vision, and double vision) at postoperative months 1, 3, 6, and 12.

Results : At 1,3,6, and 12 months postoperatively, there was no significant difference in any individual symptoms between the femtosecond laser and mechanical keratome group. When comparing their vision before and after LASIK at postoperative month 12, 84.4% patients reported better vision after LASIK in the eye treated with mechanical keratome, whereas 80% patients reported better vision after LASIK in the eye treated with femtosecond laser (P=0.3901). Seven percent of patients reported worse dry dye symptoms in the eye treated with mechanical keratome compared to before LASIK while 9% of patient reported worse dry eye symptoms in the eye treated with femtosecond laser compared to before LASIK (P=0.3489). When comparing fluctuation in vision, 9% of patient reported more fluctuation of vision in the eye treated with mechanical keratome while 13% of patients reported more fluctuation of vision in the eye treated with femtosecond laser (P=0.2540).

Conclusions : At 12 months after surgery, there were no significant difference between reported quality of vision between femtosecond laser and mechanical keratome for LASIK.

This is an abstract that was submitted for the 2017 ARVO Annual Meeting, held in Baltimore, MD, May 7-11, 2017.

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