Aphakia
| Classification according to ICD-10 | |
|---|---|
| H27.0 | Aphakia |
| ICD-10 online (WHO version 2019) | |
Under Aphakia means the aphakia one eye . It is almost always caused by surgical removal of the natural lens ( lensectomy ), more rarely by an eye injury. Aphakia is rarely found today, as after the natural lens has been removed, it is usually replaced by an artificial lens . This condition is called pseudophakia .
In addition to a deepened anterior chamber, an unstable iris and a reflex-free, black pupil, the consequence of aphakia is a special form of hyperopia in which the focal point of the incident visual rays is far behind the level of the retina , as the lens is an essential refractive medium of the Eye is missing. Close adjustment of the eye by means of accommodation is no longer possible. To compensate for this, a corresponding converging lens - formerly known as star glasses - or a contact lens can be fitted. As a rule, however, the correction takes the form of an implanted intraocular artificial lens .
literature
- Oliver Friedrich: Physiology - GK 1. Springer Medicine, Heidelberg 2007, ISBN 978-3-540-36479-5 .
- Theodor Axenfeld (founder), Hans Pau (ed.): Textbook and atlas of ophthalmology. 12th, completely revised edition. With the collaboration of Rudolf Sachsenweger and others Gustav Fischer, Stuttgart and others 1980, ISBN 3-437-00255-4 .
