Terms NOT on Home Study Guide for Ocular A&P #2 Vitreous-Congenital Anomalies
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| Vitreous Face | show 🗑
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| show | An area in the fundus of the eye in which the vitreous membrane, neural retina, and pigment epithelium all are firmly adherent, one to the other.
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| Vitreous Zones | show 🗑
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| show | Central thin canal and former site of hyaloid artery system.
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| Trichromat | show 🗑
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| show | Lacks a pigment type. Colors appear washed out.
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| Monochromat | show 🗑
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| Internal Limiting Membrane | show 🗑
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| Bipolar Cells | show 🗑
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| Rhodopsin | show 🗑
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| Iodopsin | show 🗑
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| show | Night blindness
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| Location of Optic Disc | show 🗑
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| show | 1.7 by 1.9 mm
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| show | The optic cup is the white, cup-like area in the center of the optic disc. Normal cup to disc ratio is 0.3 If it is more than it suggests glaucoma.
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| show | The subarachnoid space surrounding the optic nerve
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| Why Vitamin A is important. | show 🗑
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| Homonomyous | show 🗑
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| Hemianopsia | show 🗑
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| Arcuate Scotoma (Bjerrum) | show 🗑
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| show | Central - paracentral
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| Metamorphopsia | show 🗑
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| show | Fight or flight, pupillary dilation, dry mouth with stimulation, increased heart rate and blood pressure.
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| Parasympathetic (Craniosacral)actions | show 🗑
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| Nasociliary Nerve | show 🗑
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| Trigeminal neuralgia | show 🗑
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| What 3 nerves pass through the ciliary ganglion? | show 🗑
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| show | Dilation of the pupil of the eye.
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| show | An enzyme that serves to stop excitation of a nerve after transmission of an impulse.
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| Sympathetic NS receptors | show 🗑
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| show | First Grade- ability to superimpose 2 dissimilar images and perceive them as one. Second- ability to maintain the blending of the images as they move off the fovea. THIRD- Perception of depth (Stereopsis)only useful up to 20 ft. Normal:67 second of arc
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| show | Absence of crystalline lens. Refractive error is around +12.00D. No ability to accommodate.
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| Anisometropia | show 🗑
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| show | Vision using two eyes with overlapping fields of view, allowing good perception of depth.
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| show | Synthesized in mast cells. Once released-itching, tearing, redness, swelling. Prominent in allergy.
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| show | When released from cells, cause dilation of blood vessels and bronchodilator of lungs and increase sensitivity to pain.
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| Kinins | show 🗑
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| Complement | show 🗑
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| Hyaloid Arterial System becomes | show 🗑
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| show | Lack of melanocytes in the iris pigmnent epithelium.
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| What are "bear tracks"? | show 🗑
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| What are anterior and posterior staphyloma? | show 🗑
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| show | Is an infantile cancer with rapid growth and seen early in life. High survival rate of 95-98%, Very treatable. Occasionally bilateral. May present as white reflex in the pupil.
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| Anophthalmia | show 🗑
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| Location of the congenital polar cataract | show 🗑
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| show | No iris
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| show | Degenerative thinning of the sclera; A very rare ophthalmic manifestation seen in rheumatoid arthritis
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| Sclera is thinnest under the ____________? | show 🗑
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| Endothelium Count when born. | show 🗑
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| Corneal Arcus | show 🗑
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| show | Little areas of collagen that collect abnormally at the back of the eye due to a growth abnormality of the cells at that location. These lumps can interfere with light transmission.
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| Lamina Cribosa | show 🗑
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| Sphinster muscle is innervated by the ________________. | show 🗑
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| show | Sympathetic NS
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| What occurs in inflammation, uveitis,etc? | show 🗑
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| show | Normal
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| show | Inherited retinal dystrophy affecting rods, cones, RPE.
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| show | Vitamin A deficiency
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| show | Shaped or bent like an arc or bow
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| show | Bilateral
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| Ciliary Injections signifies ________________ deeper in the eye. | show 🗑
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| show | True
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| show | AWAY from organ (eye) to CNS.
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| Efferent | show 🗑
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| When we look at visual fields (VF), keep in mind they are represented as _______________ see them and not as observed by the _______________. Left VF is on our _______ and right VF is on our _______. | show 🗑
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