Progression of myopic maculopathy after treatment of choroidal neovascularization.

PURPOSE: To evaluate the long-term progression of myopic maculopathy and functional outcome after treatment of myopic choroidal neovascularization (CNV) with photodynamic therapy (PDT) and/or intravitreal ranibizumab (IVR). METHODS: Retrospective study with a cross-sectional evaluation. Eyes were assigned to 4 groups (PDT, IVR, PDT + IVR, dry myopic maculopathy) and evaluated with best-corrected visual acuity, color fundus photography and spectral-domain optical coherence tomography. Chorioretinal atrophy progression was quantified. RESULTS: Fifty-four eyes were included with a mean follow-up of 80.6 ± 28.0 months. The prevalence of diffuse, patchy and macular atrophy increased during the follow-up, in contrast with tessellated fundus, lacquer cracks and active CNV. Progression of macular atrophy was significant in the 3 treatment groups (p < 0.05) and predictive of visual acuity. It depended on age, degree of myopia and presence of staphyloma, but not on the type of treatment. CONCLUSIONS: The long-term functional outcome of eyes with myopic CNV is more dependent on the progression of macular atrophy, and not on the type of treatment.

Choroidal thickness after treatment for myopic choroidal neovascularization.

PURPOSE: To evaluate choroidal thickness in highly myopic eyes with choroidal neovascularization (CNV), 3 or more years after treatment with photodynamic therapy (PDT), intravitreal ranibizumab (IVR), or both (PDT + IVR). METHODS: The medical records of patients with high myopia and CNV treated with PDT or IVR in our department were reviewed. Eyes meeting the inclusion criteria were assigned to 3 groups: PDT, IVR, and PDT + IVR. A fourth group, "dry myopic maculopathy," included the contralateral highly myopic eyes that never developed CNV. All patients performed a cross-sectional evaluation with best-corrected visual acuity (BCVA), measurement of axial length, color fundus photography, and enhanced depth imaging with spectral domain optical coherence tomography. RESULTS: Forty-two eyes (21 patients) were included: 11 eyes (26.2%) in the PDT group, 8 (19.0%) in the IVR group, 9 (21.4%) in the PDT + IVR group, and 14 (33.3%) in the dry maculopathy group. Subfoveal choroidal thickness showed no significant differences between groups (p>0.05). Positive correlation was found between BCVA and macular choroidal thickness (r = +0.293, p<0.001). Regression analysis showed that age (p<0.001), axial length (p<0.001), sex (p = 0.001), and myopic lesions such as tessellated fundus (p = 0.046) and patchy atrophy (p = 0.008) were predictive of choroidal thickness. Type of treatment was not predictive of choroidal thickness. CONCLUSIONS: Older age and greater axial length are the major factors associated with macular choroidal thinning in highly myopic eyes submitted to CNV treatment. The type of treatment performed for myopic CNV had no predictive contribution for choroidal thickness.