Two-year outcomes of intravitreal bevacizumab for choroidal neovascularization in Japanese patients with pathologic myopia

Retina. 2012 Apr;32(4):687-95. doi: 10.1097/IAE.0b013e3182278bae.

Abstract

Purpose: To determine the 2-year results of intravitreal bevacizumab in highly myopic eyes with choroidal neovascularization (CNV).

Methods: An open-label, consecutive, interventional case series. Seventy-five eyes of 69 consecutive Japanese patients with either subfoveal or nonsubfoveal myopic CNVs were studied. The eyes were treated with intravitreal bevacizumab and followed-up for at least 2 years. The best-corrected visual acuities at the baseline in eyes with subfoveal CNV were compared with that in eyes with nonsubfoveal CNV at 2 years after the intravitreal bevacizumab.

Results: The difference between the mean best-corrected visual acuity at the baseline and that at 2 years in eyes with a subfoveal CNV was not significant. However, the mean best-corrected visual acuity in eyes with nonsubfoveal CNV was significantly improved from 0.53 ± 0.36 logarithm of the minimal angle of resolution units (Snellen 20/66) before intravitreal bevacizumab to 0.29 ± 0.36 logMAR units (Snellen 20/40) (P < 0.001) 2 years after intravitreal bevacizumab. The incidence of chorioretinal atrophy after 2 years was 3 of 49 (6.1%) in eyes with nonsubfoveal CNV and 21 of 26 (80.8%) in eyes with which subfoveal CNV (P < 0.001). Furthermore, the chorioretinal atrophy area with nonsubfoveal CNV was 0.05 ± 0.21 mm, which was also significantly smaller than that of subfoveal CNV at 1.76 ± 1.60 mm (P < 0.001).

Conclusion: Intravitreal bevacizumab is a good treatment for eyes with nonsubfoveal CNV; however, another treatment is necessary for eyes with a subfoveally located CNV.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Angiogenesis Inhibitors / administration & dosage*
  • Antibodies, Monoclonal, Humanized / administration & dosage*
  • Asian Continental Ancestry Group
  • Bevacizumab
  • Choroidal Neovascularization / drug therapy*
  • Choroidal Neovascularization / etiology
  • Choroidal Neovascularization / physiopathology
  • Female
  • Follow-Up Studies
  • Fovea Centralis
  • Humans
  • Intravitreal Injections
  • Japan
  • Male
  • Middle Aged
  • Myopia, Degenerative / complications*
  • Prospective Studies
  • Regression Analysis
  • Visual Acuity / physiology
  • Young Adult

Substances

  • Angiogenesis Inhibitors
  • Antibodies, Monoclonal, Humanized
  • Bevacizumab