preventive / curative agent for diseases of retinal nerve containing alkylether derivatives or salts thereof

A substance or composition for use in the treatment and / or prevention of diseases retinianoseleccionadas nerve between glaucoma, diabetic retinopathy, obstruction of retinal artery, venosaretiniana obstruction, macular degeneration and retinopathy of prematurity, characterized by eteralquilico include a derivative represented by the following general formula [1]: wherein R1 and R2 each represent a hydrogen atom; R3 represents a hydroxyl group; the porcionrepresentada by the following formula: alkyl ether derivative represented by general [1] is the following formula: m is 2; n is 3; p is 1; or a salt thereof.