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Updated: Jan 19, 2026

Author Spotlight: Overcoming Anti-VEGF Resistance Through Advanced Vascular Morphology Assessment in Choroidal Neovascularization
Published on: August 11, 2023
Continuous anti-VEGF treatment with ranibizumab for polypoidal choroidal vasculopathy: 6-month results
Gregg T Kokame1, Ling Yeung, James C Lai
1The Division of Ophthalmology, Department of Surgery, University of Hawaii School of Medicine, Honolulu, Hawaii, USA. retinahi@aol.com
Aim:
To evaluate the short-term efficacy and safety of monthly intravitreal injections of ranibizumab in patients with polypoidal choroidal vasculopathy (PCV) and active exudation or haemorrhage.
Methods:
A prospective, open-label trial of monthly intravitreal ranibizumab (0.5 mg) injections for PCV in 12 eyes of 12 patients was performed. The primary outcome measures were stabilisation of vision (loss <15 ETDRS letters). Secondary outcome measures included incidence of ocular and systemic adverse events, and changes in subretinal haemorrhage, central foveal thickness (CFT) and polypoidal complexes on indocyanine green angiography at 6 months.
Results:
Baseline findings included eight eyes with subretinal fluid, six eyes with subretinal haemorrhage and five eyes with macular oedema (CFT >275 microm). No patient lost > or = 15 letters in visual acuity at 6 months. Subretinal fluid decreased in 5/8 eyes (63%). Subretinal haemorrhage resolved in 6/6 eyes (100%). Macular oedema improved in 4/5 eyes (80%). Polypoidal complexes decreased in 4/12 (33%) eyes. There were no ocular or systemic adverse events.
Conclusions:
Continuous monthly intravitreal ranibizumab is safe and well tolerated in eyes with PCV. Preliminary results show stabilisation of vision, resolution of subretinal haemorrhage and a decrease in macular oedema. Polypoidal lesions decreased in 4/12 (33%) eyes, but branching choroidal vessels persisted.
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