June 2013
Volume 54, Issue 15
Free
ARVO Annual Meeting Abstract  |   June 2013
Changes in Add Power for Near Vision after Laser in Situ Keratomileusis for Presbyopic High Myopia
Author Affiliations & Notes
  • Yukari Tsuneyoshi
    Ophthalmology, Keio University School of medicine, Tokyo, Japan
    Ophthalmology, Tachikawa Hospital, Tachikawa, Japan
  • Kazuno Negishi
    Ophthalmology, Keio University School of medicine, Tokyo, Japan
  • Miyuki Yoshida
    Ophthalmology, Keio University School of medicine, Tokyo, Japan
  • Megumi Saiki
    Ophthalmology, Keio University School of medicine, Tokyo, Japan
  • Naoko Kato
    Ophthalmology, Keio University School of medicine, Tokyo, Japan
  • Ikuko Toda
    Ophthalmology, Minamiaoyama Eye Clinic, Tokyo, Japan
  • Kazuo Tsubota
    Ophthalmology, Keio University School of medicine, Tokyo, Japan
  • Footnotes
    Commercial Relationships Yukari Tsuneyoshi, None; Kazuno Negishi, Oculentis (F); Miyuki Yoshida, None; Megumi Saiki, None; Naoko Kato, None; Ikuko Toda, None; Kazuo Tsubota, AcuFocus, Inc (C), Allergan (F), Bausch Lomb Surgical (C), Functional visual acuity meter (P), JiNS (P), Kissei (F), Kowa (F), Santen, Inc. (F), Otsuka (F), Pfizer (C), Thea (C), Echo Denki (P), Nidek (F), Ophtecs (F), Wakasa Seikatsu (F), CEPT Company (P)
  • Footnotes
    Support None
Investigative Ophthalmology & Visual Science June 2013, Vol.54, 4277. doi:
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      Yukari Tsuneyoshi, Kazuno Negishi, Miyuki Yoshida, Megumi Saiki, Naoko Kato, Ikuko Toda, Kazuo Tsubota, ; Changes in Add Power for Near Vision after Laser in Situ Keratomileusis for Presbyopic High Myopia. Invest. Ophthalmol. Vis. Sci. 2013;54(15):4277.

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

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Abstract

Purpose: To evaluate the changes in the minimal add power to attain the best-corrected near visual acuity (add power) after laser in situ keratomileusis (LASIK) for presbyopic high myopia.

Methods: We retrospectively analyzed 53 eyes of 41 patients who were 45 years of age and older and had undergone LASIK for high myopia (-6 diopters [D] and over). The add powers at 30 cm were measured preoperatively and postoperatively.

Results: The mean patient age was 50.0 ± 4.1 years (standard deviation [SD]); the mean power corrected by LASIK was -7.69 ± 1.10 D. The preoperative and postoperative add powers were 1.80 ± 0.60 D and 2.18 ± 0.69 D, respectively, which was a significant (P < 0.01) increase of 0.38 ± 0.60 D. In patients under 50 years (n=30), the mean add power increased to 0.51±0.61 D, which is significantly (P < 0.01) greater than in patients 50 years and older (0.21±0.57 D), although the powers corrected by LASIK did not differ significantly between the groups.

Conclusions: The add power increases after LASIK performed to treat presbyopic high myopia, especially in patients who are newly presbyopic, probably due to the effect of the vertex distance. Our results confirmed the importance of obtaining informed consent regarding the apparent progression of presbyopia in such patients.

Keywords: 683 refractive surgery: LASIK • 653 presbyopia • 404 accommodation  
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