Phacoemulsification
Technique for removing the crystalline lens by means ultrasonic vibrations which breaks it into pieces small enough to be sucked out.
View ArticlePhotocoagulation
The use of a laser to seal off tissue by preventing blood entering. Used in the treatment of cancer by depriving the tumour of nourishment. Is also used to treat a detached retina.
View ArticlePhotophobia
Fear of light. Over sensitivity to light leading to discomfort often accompanied by an excessive amount of tears.
View ArticlePhoto-refractive Keratectomy (PRK)
An excimer laser is used to ablate small bits of tissue from the surface of the cornea in order to re-shape it. The re-shaped cornea will focus light entering the eye and onto the retina more...
View ArticlePosterior Capsulotomy
A cataract operation consists of the removal of the crystalline lens situated in the front of the lens capsule leaving the rear or posterior intact. However, this can sometimes become cloudy and...
View ArticlePresbyopic
Age related loss of reading vision due to the inability of the crystalline lens to change its shape to focus on a near object.
View ArticlePupil
The black opening in the centre of the iris through which light travels to the back of the eye (retina) via the crystalline lens.
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