Phacoemulsification is keyhole surgery with emulsification and aspiration of cataract through a 2.8-3 mm incision and placement of a foldable intraocular lens through the same unenlarged incision. This gives faster rehabilitation and excellent results in trained hands.
LASIK (Laser assisted-in-situ keratomilieusis) is a type of refractive surgery whereby an excimer laser (193 nm) is used to remodel the corneal stroma after lifting a partial thickness corneal flap made by a microkeratome. Excimer laser ablates tissue without causing damage to adjacent stroma in a finely controlled manner. Major research is underway to improve the results and predictability of refractive surgery.
Ophthalmology should not be confused with optometry (the measurement of the optical aspects of the eye) or the oculist craft (the creation of corrective lenses.)
Regular examination of the eyes is highly important in ensuring the preservation of sight.