September 2016
Volume 57, Issue 12
Open Access
ARVO Annual Meeting Abstract  |   September 2016
Objective depth of field after laser blended vision LASIK using MEL90 platform
Author Affiliations & Notes
  • Jiho Song
    Ophthalmology, Chungbuk National University College of Medicine, Cheongju-si, Chungbuk, Korea (the Republic of)
  • Jae-hyung Kim
    Ophthalmology, Chungbuk National University College of Medicine, Cheongju-si, Chungbuk, Korea (the Republic of)
  • Dong Yoon Kim
    Ophthalmology, Chungbuk National University College of Medicine, Cheongju-si, Chungbuk, Korea (the Republic of)
  • Tae Hyung Lim
    HanGil Eye Hospital, Incheon, Korea (the Republic of)
  • Geunyoung Yoon
    Flaum Eye Institute, University of Rochester, Rochester, New York, United States
  • Footnotes
    Commercial Relationships   Jiho Song, None; Jae-hyung Kim, None; Dong Yoon Kim, None; Tae Hyung Lim, None; Geunyoung Yoon, None
  • Footnotes
    Support  none
Investigative Ophthalmology & Visual Science September 2016, Vol.57, 4846. doi:
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    • Get Citation

      Jiho Song, Jae-hyung Kim, Dong Yoon Kim, Tae Hyung Lim, Geunyoung Yoon; Objective depth of field after laser blended vision LASIK using MEL90 platform. Invest. Ophthalmol. Vis. Sci. 2016;57(12):4846.

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

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Abstract

Purpose : To investigate the depth of field (DoF) of dominant (DE) and non-dominant (NDE) eyes after Laser Blended Vision (LBV) using MEL-90 platform (Carl Zeiss Meditec).

Methods : The ocular aberrations were measured using iTrace (Tracey Technologies) preoperatively and 1 month postoperatively. The modulation transfer functions (MTF) were calculated for a 5 mm pupil and the area under the MTF curve (areaMTF) up to 60 cycles per degree (cpd) was calculated at various defocus points ranged from -1.0 to +3.0 with 0.05 diopter (D) steps The DoF defined as a dioptric range for which image quality is higher than 80% of the maximum of the calculated areaMTF was evaluated.

Results : Two male patients and eight females were included (47.2 ± 4.60 years old). The preoperative root mean square (RMS) of spherical aberration (SA) was 0.26 ± 0.11 and 0.13 ± 0.03 in the DE and 0.30 ± 0.07 and 0.14 ± 0.05 in the NDE (P = 0.39 and 0.39, respectively). The postoperative RMS of SA, horizontal coma, and oblique trefoil in the NDE (0.12 ± 0.5, 0.12 ± 0.06, and 0.15 ± 0.08) was higher than that in the DE (0.12 ± 0.5, 0.07 ± 0.06, and 0.05 ± 0.04, respectively). The maximum of areaMTF was 14.0 ± 3.9 in the DE and 10.6 ± 3.6 in the NDE. The DoF was 1.24 ± 0.51 D and 2.01 ± 1.07 D, respectively (P = 0.01).

Conclusions : With LBV using MEL90 platform, the NDE had larger DoF, relatively. The induced HOAs in the NDE would increase the postoperative DoF.

This is an abstract that was submitted for the 2016 ARVO Annual Meeting, held in Seattle, Wash., May 1-5, 2016.

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