Posterior segment of eyeball
| Posterior segment | |
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Schematic diagram of the human eye
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| Details | |
| Latin | segmentum posterius bulbi oculi |
| Identifiers | |
| Dorlands /Elsevier |
s_07/13264629 |
| TA | Lua error in Module:Wikidata at line 744: attempt to index field 'wikibase' (a nil value). |
| TH | {{#property:P1694}} |
| TE | {{#property:P1693}} |
| FMA | {{#property:P1402}} |
| Anatomical terminology
[[[d:Lua error in Module:Wikidata at line 863: attempt to index field 'wikibase' (a nil value).|edit on Wikidata]]]
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The posterior segment is the back two-thirds of the eye that includes the anterior hyaloid membrane and all of the optical structures behind it: the vitreous humor, retina, choroid, and optic nerve.[1] The portion of the posterior segment visible during ophthalmoscopy (or fundoscopy) is sometimes referred to as the posterior pole, or fundus. Some ophthalmologists specialize in the treatment and management of posterior segment disorders and diseases.[2]
In some animals, the retina contains a reflective layer (the tapetum lucidum) which increases the amount of light each photosensitive cell perceives, allowing the animal to see better under low light conditions.
See also
- Anterior segment
- Posterior chamber (of the anterior segment)
- List of eye diseases and disorders
- Vitreous chamber
References
| Fibrous tunic (outer) |
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| Uvea/vascular tunic (middle) |
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| Retina (inner) |
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| Anterior segment | ||||||||||
| Posterior segment | ||||||||||
| Other | ||||||||||
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