Term
| What are the 3 layers of the eyball from superficial -> deep? |
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Definition
| Sclera, choroid, and retina |
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Term
| What is the fibrous tunic? |
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Definition
| Consists of the sclera (white of the eye) and the cornea (anterior transparent region of the sclera) |
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Term
| What is the vascular tunic? |
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Definition
| Conists of the choroid, ciliary body and iris. |
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Term
| What is the nervous tunic? |
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Definition
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Term
| What layer is very tough? |
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Definition
| The sclera of the fibrous tunic. |
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Term
| What layer is very vascular? |
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Definition
| The choroid of the vascular tunic. |
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Term
| Where is the entrance and exit points of the optic nerve? |
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Definition
| The retina is continuous with the optic nerve and the optic nerve exits through the optic disk. |
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Term
| What are the receptors for vision? |
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Definition
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Term
| Where are the receptors for sight located? |
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Definition
| The rods and cones are located in the retina. |
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Term
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Definition
| Detects grey/shadows, nighttime visual receptors |
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Term
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Definition
| Detects color, daytime visual receptors. |
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Term
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Definition
| Serrated structure where the retina begins. |
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Term
| Where does the retina begin and end? |
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Definition
| Begins at the ora serrata and ends at the optic disk. |
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Term
| What is the macula lutea? |
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Definition
| Region dead center in the back of the eyeball, which is apart of the retina and includes the fovea centralis. |
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Term
| What is the fovea centralis? |
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Definition
| Apart of the macula lutea and produces the most finely detailed images. |
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Term
| Where is the highest concentration of photoreceptors found? |
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Definition
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Term
| What is macular degeneration? |
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Definition
| Degeneration of the macula lutea; leads to permanent blindness. |
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Term
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Definition
| The blind spot, where the optic nerve exits the eye. No photoreceptors are present. |
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Term
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Definition
| The presence of melanocytes |
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Term
| What is the ciliary muscle? |
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Definition
| Plays an important part in focusing by controlling tension on the lens |
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