July 2018
Volume 59, Issue 9
Open Access
ARVO Annual Meeting Abstract  |   July 2018
Clinical outcome comparison of vitrectomy for myopic traction maculopathy according to the international photographic classification for myopic maculopathy
Author Affiliations & Notes
  • Kyungsik Lee
    Ophthalmology, Yonsei University College of Medicine, Seoul, Korea (the Democratic People's Republic of)
  • Euichun Kang
    Bupyung ST. Mary's eye clinic, Seoul, Korea (the Republic of)
  • Hyoungjun Koh
    Ophthalmology, Yonsei University College of Medicine, Seoul, Korea (the Democratic People's Republic of)
  • Footnotes
    Commercial Relationships   Kyungsik Lee, None; Euichun Kang, None; Hyoungjun Koh, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science July 2018, Vol.59, 885. doi:
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      Kyungsik Lee, Euichun Kang, Hyoungjun Koh; Clinical outcome comparison of vitrectomy for myopic traction maculopathy according to the international photographic classification for myopic maculopathy. Invest. Ophthalmol. Vis. Sci. 2018;59(9):885.

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

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Abstract

Purpose : To compare the treatment results of myopic traction maculopathy (MTM) according to international photographic classification

Methods : 35 eyes that underwent vitrectomy for MTM were preoperatively classified into five categories according to the international photographic classification for myopic maculopathy. For subgroup analysis, eyes were divided into low grade (category 0, 1) (n=15) and high grade (category 2, 3, 4) (n=20) group, and the best corrected visual acuity (BCVA) and anatomical structure were compared.

Results : Mean follow up period was 32.03±6.85 months. Both low (P=0.012) and high (P=0.045) grade group showed visual acuity improvement after surgery but eyes with low grade group showed superior postoperative BCVA than eyes with high grade group (P=0.008). The odds ratio (OR) of postoperative BCVA <0.7 (decimal) was 21 for high grade group to low grade group (P=0.001). Mean axial length was significantly longer in high grade group (30.67 ± 1.48) than low grade group (27.66 ± 1.48) (P<0.0001). Spearman’s correlation analysis showed that axial length significantly correlated with category of pathologic myopia (rho=0.6836, P<0.0001).

Conclusions : For MTM, vitrectomy can help vision improvement in both low and high grade myopia. But the postoperative BCVA was better in low grade myopia, and there was limitation in vision improvement in high grade myopia.

This is an abstract that was submitted for the 2018 ARVO Annual Meeting, held in Honolulu, Hawaii, April 29 - May 3, 2018.

 

Graph showing changes in the best-corrected visual acuity (BCVA) before and after surgery in high grade and low grade groups. There was improvement in BCVA in both groups (low grade group: 0.314±0.276 → 0.075±0.177 (logMAR) (P=0.012), high grade group: 0.613±0.722 → 0.415±0.490 (logMAR) (P=0.045). The postoperative BCVA was significantly superior in low grade group than high grade group (P=0.008). * Indicates statistically significant difference of mean BCVA.

Graph showing changes in the best-corrected visual acuity (BCVA) before and after surgery in high grade and low grade groups. There was improvement in BCVA in both groups (low grade group: 0.314±0.276 → 0.075±0.177 (logMAR) (P=0.012), high grade group: 0.613±0.722 → 0.415±0.490 (logMAR) (P=0.045). The postoperative BCVA was significantly superior in low grade group than high grade group (P=0.008). * Indicates statistically significant difference of mean BCVA.

 

Graph showing the proportion of patients with postoperative BCVA of 0.7 (decimal) or more in high grade and low grade groups. 93.3% of the low grade group had a BCVA of 0.7 or more, but only 40% of the high grade group had a BCVA of 0.7 or more after surgery. The odds ratio (OR) of postoperative BCVA <0.7 (decimal) was 21 for high grade group to low grade group (P=0.001).

Graph showing the proportion of patients with postoperative BCVA of 0.7 (decimal) or more in high grade and low grade groups. 93.3% of the low grade group had a BCVA of 0.7 or more, but only 40% of the high grade group had a BCVA of 0.7 or more after surgery. The odds ratio (OR) of postoperative BCVA <0.7 (decimal) was 21 for high grade group to low grade group (P=0.001).

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