Phacoemulsification is the most common cataract surgery technique. The lens is located behind the iris. It is responsible for focusing light on the retina, and for producing clear, sharp images.
Vitreoretinal surgery is performed in the part of your eye where the vitreous and retina are located. The vitreous is a jelly-like substance filling the cavity between the lens of your eye.
Oculoplastic surgery is a high-specialised field of medicine which concerns the plastic and reconstructive surgery of the orbit (bony socket), the tear ducts and the eyelids.