Term
| What is the order the cells in the neural retina develops? |
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Definition
| Ganglion, horizontal, cones, amacrine, bipolar, rods, Muller |
|
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Term
| T or F. The macular area is the first to begin differentiation and the first to complete development. |
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Definition
| False. Foveal maturation is not complete until approximately 4 years of age |
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Term
| The hyaloid artery supplies blood to what structure. |
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Definition
the posterior vascular tunic of the lens, the annular vessel to the ONH, annular vascular tunic of the lens
-> at the 7th month there should be no blood flow to any of these structures, the amount of glial tissue left defines the extent of the optic cup |
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Term
| The outer layer of the optic cup becomes what? |
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Definition
| RPE, Outer pigmented CB epithelium, Anterior iris epithelium |
|
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Term
| What is the most common intraocular(primary) malignancy in children, why does it occur? |
|
Definition
| Retinoblastoma, mutations to the Rb tumor suppressor gene |
|
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Term
| Where is the thickest basement membrane in the body? |
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Definition
|
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Term
| The lens capsule blocks what from entering the lens? |
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Definition
|
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Term
| What types of junctions are found in the anterior lens epithelium? |
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Definition
|
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Term
| Where is the germative zone of the lens? |
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Definition
|
|
Term
| what is the oldest area of the lens called |
|
Definition
the embryonic nucleus
-> highest index of refraction |
|
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Term
| How does the lens epithelium give the fibers nutrition? |
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Definition
|
|
Term
| when does corneal epithelium develop |
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Definition
|
|
Term
| what forms the corneal epithelium |
|
Definition
| lens vesicle-> surface ectoderm |
|
|
Term
| when does the rest of the cornea develop |
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Definition
|
|
Term
| what forms the rest of the cornea |
|
Definition
|
|
Term
| when does the lacrimal gland fully develop |
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Definition
|
|
Term
| what is made from surface ectoderm |
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Definition
| corneal epithelium, lens, lacrimal gland, lacrimal sac, canaliculi, nasolacrimal duct, caruncle, epithelium of meibomian, zeis, moll, krauss, and wolfring glands, conj. epithelium |
|
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Term
| lens zonular fibers are derived from what |
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Definition
|
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Term
| what is made from neural ectoderm |
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Definition
| retina, rpe, neuroglia, epithelium of iris, epithelium of CB, sphincter and dilator muscles, optic nerve fibers |
|
|
Term
| what comes from neural crest |
|
Definition
| all corneal layers but epithelium, TM, iris stroma, CB stroma, sclera, choroid, vitreous |
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Term
| irregular iridocorneal adhesions occur as what, and what disease is this called |
|
Definition
| abnormal neural crest cell development, Axenfeld's anomaly |
|
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Term
|
Definition
| corneal haze, corneal edema, buphthalmos, Haab's striae, optic nerve damage, high myopia, possible subluxation of lens |
|
|
Term
|
Definition
| EOMs, endothelium of blood vessels, orbiuclaris oculi, levator palpebrae, Muller's muscle |
|
|
Term
| what forms connective tissue of the globe and orbit |
|
Definition
| neural crest and mesoderm |
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