Ophthalmology is the branch of medicine focused on the diagnosis, treatment, and prevention of diseases and disorders related to the eyes and visual system. Ophthalmologists, medical doctors specializing in this field, are trained to provide comprehensive eye care, ranging from prescribing glasses and contact lenses to performing intricate eye surgeries.Key aspects of ophthalmology include, Eye Examinations, Medical and Surgical Interventions, Refractive Surgery,Pediatric Ophthalmology, Retina and Vitreous Diseases,Research and Technology ,Preventive Care.