One-year outcome of two different initial dosing regimens of intravitreal ranibizumab for myopic choroidal neovascularization

Acta Ophthalmol. 2014 Dec;92(8):e615-20. doi: 10.1111/aos.12457. Epub 2014 Jun 12.


Purpose: To evaluate and compare the 12-month outcomes of two different initial dosing regimens of intravitreal ranibizumab for myopic choroidal neovascularization (CNV).

Methods: We retrospectively reviewed the medical records of 46 consecutive, treatment-naive eyes which received intravitreal ranibizumab for subfoveal and juxtafoveal CNV secondary to pathologic myopia with a follow-up of 12 months. Two groups were created according to different initial dosing regimens: group 1 included 25 eyes treated by a single intravitreal injection; group 2 included 21 eyes treated by three consecutive monthly injections. Additional injections were performed if needed. Patients' demographic data, best-corrected visual acuity (BCVA), recurrence of CNV and total number of treatments were recorded and evaluated.

Results: There was no significant difference between two groups among baseline demographic data. At 12 months, the mean logMAR BCVA improved from 0.58 to 0.23 in group 1 and from 0.55 to 0.22 in group 2 (both p < 0.001; Wilcoxon signed-rank test). The mean logMAR BCVA at 12 months did not differ significantly. The average number of injections was 2.32 (SD 1.22) in group 1 and 3.57 (SD 1.12) in group 2 (p = 0.001; two-tailed t-test). During the follow-up, 17 of 25 eyes in group 1 and 5 of 21 eyes in group 2 received additional injections (p = 0.004).

Conclusions: Similar visual improvement was achieved in both groups. Although the eyes with a loading dose of 3 monthly injections required a higher number of total injections over 1 year, there was a much lower rate of retreatment needed.

Keywords: choroidal neovascularization; lucentis; myopia; ranibizumab; vascular endothelial growth factor.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Angiogenesis Inhibitors / administration & dosage*
  • Antibodies, Monoclonal, Humanized / administration & dosage*
  • Choroidal Neovascularization / diagnosis
  • Choroidal Neovascularization / drug therapy*
  • Choroidal Neovascularization / etiology
  • Female
  • Fluorescein Angiography
  • Follow-Up Studies
  • Humans
  • Intravitreal Injections
  • Male
  • Middle Aged
  • Myopia, Degenerative / complications*
  • Ranibizumab
  • Retrospective Studies
  • Treatment Outcome
  • Vascular Endothelial Growth Factor A / antagonists & inhibitors
  • Visual Acuity / physiology


  • Angiogenesis Inhibitors
  • Antibodies, Monoclonal, Humanized
  • VEGFA protein, human
  • Vascular Endothelial Growth Factor A
  • Ranibizumab