1)The clinical manifestations,diagnosis and treatments of choroidal melanoma. 2)The congenital anomalies of choroid. Vitreousdiseases (1)Grasping following points: 1)The concepts and clinical manifestations of vitreous liquefaction,detachment and degeneration. (2)Familiarizing with following points: 1)The etiology and treatment principles of vitreous hemorrhage,proliferative vitreoretinopathy and vitreoretinal junction diseases 2)The clinical characteristics and treatment principles of the vitreous inflammation and complications of cataract surgery. (3)Getting a general idea on: 1)The surgical techniques and indications of vitreous Retinal diseases (1)Grasping following points: 1)The pathological changes and clinical manifestations of retinal disease. and understand the research hotspots of ocular fundus diseases. 2)The principle of the diagnosis and treatments of retinal vein occlusion and retinal artery occlusion. 3)The senile macular degeneration classifications,clinical manifestations and principles ofdiagnosis and treatment. (2)Familiarizing with following points 1)The clinical manifestations and treatment principles of retinoblastoma (3)Getting a general idea on: 1)The clinical features and therapy principles of eales disease.coats disease. retinitis pigmentosa and central serous chorioretinopathy Disease of visual pathway 66 1) The clinical manifestations, diagnosis and treatments of choroidal melanoma. 2) The congenital anomalies of choroid. Vitreous diseases (1) Grasping following points: 1) The concepts and clinical manifestations of vitreous liquefaction, detachment and degeneration. (2) Familiarizing with following points: 1) The etiology and treatment principles of vitreous hemorrhage, proliferative vitreoretinopathy and vitreoretinal junction diseases. 2) The clinical characteristics and treatment principles of the vitreous inflammation and complications of cataract surgery. (3) Getting a general idea on: 1) The surgical techniques and indications of vitreous. Retinal diseases (1) Grasping following points: 1) The pathological changes and clinical manifestations of retinal disease, and understand the research hotspots of ocular fundus diseases. 2) The principle of the diagnosis and treatments of retinal vein occlusion and retinal artery occlusion. 3) The senile macular degeneration classifications, clinical manifestations and principles of diagnosis and treatment. (2) Familiarizing with following points: 1) The clinical manifestations and treatment principles of retinoblastoma. (3) Getting a general idea on: 1) The clinical features and therapy principles of eales disease, coats disease, retinitis pigmentosa and central serous chorioretinopathy. Disease of visual pathway