<prompt> Diseases covered under Vision 2020 include all except:-CataractTrachomaRefractive errorsRetinal detachment  <response>: Vision 2020 : - AIM of vision 2020 is to eliminate avoidable blindness by 2020 2 Types Global Indian Cataract Refractive error low vision Childhood blindness Trachoma Onchocerciasis River blindness Cataract Refractive error low vision Childhood blindness Trachoma Glaucoma Diabetes retinopathy Corneal blindness. 