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Updated: Jul 5, 2026

Characterization of Vascular Morphology of Neovascular Age-Related Macular Degeneration by Indocyanine Green Angiography
Published on: August 11, 2023
[Ranibizumab for treatment of exudative age-related macular degeneration--own experience]
Halina Wykrota1, Ariadna Gierek-Lapińska, Krzysztof Trzciakowski
1Samodzielny Publiczny Szpital Kliniczny Nr 5 Slaskiego Uniwersytetu Medycznego w Katowicach.
Unlabelled:
It is commonly agreed nowadays that one of the key elements of neovascular age-related macular degeneration (AMO) pathogenesis is deregulation of the angiogenesis factors. Treatment of subfoveal choroidal neovascularizations (CNV) in course of AMD was limited to photodynamic therapy with verteporfin (PDT). The new approach to CNV treatment is to discover and eliminate factors, which directly induce CNV development. Extended studies have allowed to employ inhibitors of vascular endothelial growth factor (VEGF) for a treatment of neovascular AMD. Numerous of anti-VEGF compounds are still under developing in pre-clinical or phase-1/2 clinical studies whereas 2 of them have completed phase 3 of clinical trials. The newest compound that was launched on drug market is ranibizumab (Lucentis). Ranibizumab is a recombinant humanized IgG1 isotype, monoclonal antibody fragment designed for intravitreal use. Ranibizumab binds to and inhibits the biologic activity of human vascular endothelial growth factor A (VEGF-A). It has been proved on the base of MARINA and ANCHOR clinical trials that treatment ranibizumab is effective and save for patients treated for CNV secondary to AMD.
Purpose:
Interventional case series.
Material And Methods:
67 eyes of 67 patients with all angiographic subtypes of wet AMD were treated with 0.5 mg of intravitreal ranibizumab, injected monthly for first 3 doses. Next doses were injected according to specified re-treatment criteria as assessed in monthly follow-up.
Results:
Mean change in visual acuity (VA) was +12.4 ETDRS letters. Percent of patient losing less than 15 ETDRS letters was 93.2%. Percent of patient gaining VA more than 3 ETDRS letters was 43.4%.
Conclusions:
Intravitreal ranibizumab is effective in treatment of CNV due to AMD. A significant number of patients have improved theirs VA. Implementation of anti-VEGF therapy for treatment of ocular diseases gave a new hope for patient that previously couldn't be treated with any of method.
Insights
Ranibizumab injections effectively treat wet age-related macular degeneration (AMD) by inhibiting vascular endothelial growth factor (VEGF). This therapy significantly improves visual acuity in patients with choroidal neovascularization (CNV).
Area of Science:
- Ophthalmology
- Vascular Biology
- Pharmacology
Context:
- Neovascular age-related macular degeneration (AMD) pathogenesis involves angiogenesis factors.
- Traditional treatments for subfoveal choroidal neovascularizations (CNV) included photodynamic therapy (PDT).
- Vascular Endothelial Growth Factor (VEGF) inhibitors represent a novel therapeutic approach for neovascular AMD.
Purpose:
- To evaluate the efficacy and safety of intravitreal ranibizumab for treating CNV secondary to AMD.
- To assess changes in visual acuity and vision loss in patients receiving ranibizumab treatment.
Summary:
- Intravitreal ranibizumab (0.5 mg) was administered monthly for three doses, followed by as-needed retreatment based on monthly follow-ups.
- The study included 67 eyes of 67 patients with various angiographic subtypes of wet AMD.
- Mean visual acuity improved by +12.4 ETDRS letters, with 93.2% of patients losing fewer than 15 letters and 43.4% gaining more than 3 letters.
Impact:
- Intravitreal ranibizumab demonstrates significant effectiveness in treating CNV associated with AMD.
- The therapy leads to substantial visual acuity improvement in a considerable number of patients.
- Anti-VEGF therapy offers new hope for previously untreatable ocular diseases.
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