Ophthalmology researches and treats diseases related to vision and the eyes.
An ophthalmologist performs surgeries, determines treatments and corrections for eye disorders. Ophthalmology, alongside other medical specialities, has several sub-specialities, such as ophthalmopaediatrics, ocular plastic surgery, orbital diseases, lacrimal duct diseases, strabismus, glaucoma, refractive surgery, retina, cornea, and so on.