Ectopia lentis is the displacement of
the lens
(of the eye).
Ectopia lentis may be either a complete displacement
or a partial displacement.
- Complete displacement (of the lens) is called lens luxation
or luxated lens.
It can be described in more detail according to the way in which the
lens is displaced, such as anterior lens luxation (in which
the the lens pushes into the iris
or the anterior chamber of the eye) and posterior lens luxation
(in which the lens falls back into the vitreous
humour).
- Partial displacement (of the lens) is called subluxation,
lens subluxation or subluxated lens.
Causes of ectopia lentis may include:
- Trauma - such as injury due to accident.
- Genetic pre-disposition.
- Association with other disorders such as aniridia
or buphthalmos.
Species affected:
Ectopia lentis affects dogs and cats as well as humans.
It affects certain breeds of dogs more than others, hence genetic predisposition
is suspected in the cases of some dog breeds.
More about Ophthalmology: This section includes short definitions
of many diseases, disorders, and conditions of the eyes and visual system.
For definitions of other terms in this category, choose from the list
to the left (but note that this is not a complete/exhaustive list).
Other related pages include the diagram
of the eye, and definitions
of parts of the eye, a description
of the human retina, and definitions
of parts of the retina, and the section of short definitions
of clinical and surgical procedures re. eyes and human visual system.
For further information see also our section of Books
about Ophthalmology. |
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This Section
is about
Diseases
and Disorders of the Eyes and Visual System.
To read about other diseases, disorders, or conditions of the eye and
human visual system, use the links on the left-side of this page.
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