Patholoic myopia has been reported to be a major cause of blindness in the world.Many of these cases of vision loss are the result of the development of choroidal neovascularization (CNV).Laser photocoagulation may not be a useful treatment for subfoveal CNV in pathologic myopia, because the vision loss from subfoveal photocoagulation is likely top out weight any treatment benefit. The beneficial affect of laser photocoagulation for CNV that does not extend under the center of the foveal avascular zone may be lost within 1-2 years after subsequent development of recurrent CNV or the progressive enlargement of atrophy of retinal pigment epithelium surrounding the laser-treated area, which can extend under the center of the foveal avascular zone and cause additional loss of central vision.The concept of photodynamic therapy (PDT) essentially offers a non invasive modality which does not damage the transparent media preceding the choroidal lesion.