Abstract

To evaluate the anatomical and functional outcome of ranibizumab therapy in patients with idiopathic choroidal neovascularization (CNV). File and Methodology: The group consists of 6 patients. Patients were older 18 years but they were under 50 years of age. The monitoring period lasted 12 months. We confirmed active idiopathic CNV in subfoveal position with fluorescein angiography (FAg) and optical coherence tomography (OCT). The activity of idiopathic CNV we demonstrated with leakage of dye by FAg examination. The presence of serous retinal pigment epithelium detachment and / or subretinal fluid and / or intraretinal edema in the form of intraretinal cysts demonstrated activity of CNV on OCT scans. Adecrease of the visual acuity under 85 letters was observed at the ETDRS (Early Treatment Diabetic Retinopathy Study) visual acuity chart. After the initial administration of ranibizumab apro re nata regimen was used. We indicated repeated injection of ranibizumab in patients with signs of activity of idiopathic CNV on OCT scans or by FAg. Also we indicated repeated injection of ranibizumab in patients with new loss of visual acuity on the ETDRS visual acuity chart connected with signs of activity of CNV on OCT scans or by FAg. On average, we observed the gain of +11 letters on the ETDRS visual acuity chart after 12 months of the follow-up period. On average we observed reduction of central macular thickness -233μm. At the 12th month of follow-up we observed in all patients of our group only inactive scar without exudation. No serous retinal pigment eithelium detachment, subretinal fluid or intraretinal cysts were observed. Only 3 injections of ranibizumab were administered on average to each patient during the 12 months of the follow-up period. In our study, we observed the positive effect of ranibizumab on the course of idiopathic CNV. With ranibizumab treatment we achieved regression of CNV with resorption of macular edema in all patients of our group. With the disappearance of the activity of idiopathic CNV ranibizumab gives real hope to improve visual acuity.

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