Accommodation		The ability of the eye to adjust the visual acuity between distant and near objects, i.e. to focus on the right point. Loss of accommodation is called presbyopia.
ACL		Accommodative intraocular lens
Cataract		The clouding of the natural crystalline lens. Cataract occurs naturally with age, but can also be induced by trauma.
Crystalline Lens		The natural lens of the eye. First, the lens is transparent, but becomes clouded with time, which is called cataract.
IOL		Intraocular lens, which is the artificial lens used to replace the clouded crystalline lens in cataract surgery.
MICS		Micro Incision Cataract Surgery, which is a surgical operation technique where incisions smaller than 1.5 mm are used.
PCO		Posterior capsule opacification develops postoperatively of cataract surgery and is caused by the lens epithelial cells growing onto the posterior part of the lens capsule. Sometimes called secondary cataract or after cataract.
Phaco		The lens of the eye.
Presbyopia		The loss of the eye's capability to accommodate. The process starts to develop at about age ten, but most people do not experience the effects until their forties. Usually, the problem with presbyopia is solved by wearing glasses.
Prophylactic Treatment		Preventive treatment applied before the problem arises.
Refraction		Optical focusing of light onto retina.
Symptomatic Treatment		Treatment applied after the emergence of a problem.
YAG Laser		Symptomatic method to treat PCO. The method implies that laser is used to make a hole in the posterior lens capsule, by vaporising the tissue with carefully controlled pulses of the laser. This way the optical part of the IOL is uncovered.

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