Term
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Definition
1. Retina - innermost neural layer
2. Choroid - middle vascular layer
3. Corneo-scleral layer - outer fibrous layer consisting of the cornea and sclera |
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Term
| What are the three chambers of the eye? |
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Definition
1. Anterior - space defined by the cornea, iris, and lens; filled w/ aqueous humor
2. Posterior chamber - space defined by the iris, lens, zonule fibers and ciliary body; filled w/ aqueous humor
3. Vitreous chamber - space defined by the lens, zonule fibers and retina; filled with vitreous humor |
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Term
| What layer of the retina is responsible for providing nutritional support for the photoreceptors, absorb stray light, and phagocytose shed membranous material from the outer segments of photoreceptors? |
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Definition
| Retinal pigment epithelium |
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Term
| What is found in the fovea or macula? |
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Definition
| All cones, no blood vessel; all serving to provide color vision |
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Term
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Definition
| The location where the multilayered neural retina simplifies into a single layer columnar epithelium that is not photreceptive |
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Term
| What is the ciliary body? |
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Definition
Regulates fine focus by adjusting the shape of the lens, and is also the source of aqueous humor
Contains ciliary muscle with parasympathetic innervation |
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Term
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Definition
| Fine ligaments, which connect ciliary body to lens |
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Term
| What is the source of aqueous humor? |
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Definition
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Term
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Definition
Regulates the amt of light entering the eye, by changing the size of the pupil
Formed by the anterior extension of the choroid |
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Term
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Definition
| The major refractive element of the eye. Covers the anterior 1/6 of the eye |
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Term
| Limbus? What special feature does it contain? |
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Definition
Marks the point of transition from sclera to cornea
Contains the canal o Schlemm, which drains aqueous humor |
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