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Vision is an ability which depends on many structures within the eye as well as the brain. If one of those structures is damaged or functioning improperly, a visual impairment may result.
Each of the links below leads to a description of one of the structures involved in the pathway which light and images follow, allowing a person to see. Other parts of the eye provide various kinds of support to these structures. These are just as important, but because they are not directly involved in the process of seeing they are not discussed here. For more information about anatomy or structure and function of the eye, visit the ophthalmology site.
The Cornea
The Aqueous Humour
The Pupil and the Iris
The Lens The Vitreous Humour
The Retina
The Optic Nerve
The Brain
This multi-page document is copyright 2003 by Sarah J. Blake. For permission to reprint, please email Sarah at sarah@growingstrong.org.
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