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Ocular A&P #12 Final

Terms, Definitions, and IMAGES IN TARGET for Congenital Anomalies

QuestionAnswer
The Visual Acuity (VA) of a newborn is ___________. 20/400
The Visual Acuity (VA) of a 1 year old is ___________. 20/50
The Visual Acuity (VA) of a 3 year old is ___________. 20/20
Medullated (Myelinated) nerve fibers of the retina affect vision. T or F False
A congenital staphyloma is? Bulging of the sclera posteriorly or bulging of cornea and anterior chamber anteriorly.
Which parts of the eye are not fully developed at birth? (5) Retinal elements, retinal blood vessels, lacrimal gland, globe, orbit
The Lacrimal gland begins to function at _____________. About 3 months - then infant can tear
Persistent primary hyperplastic vitreous (PHPV)is located _____________ . Posterior to the lens - remnant of the original primary vitreous which has become hyperplastic (fibrous).
Buphophthalmos occurs in _________________ and is characterized by __________________. Congenital glaucoma/ Large cornea
The central retinal artery derives from the _______________. Hyaloid artery
Cloquet's canal runs from the _____________ to the _______________ and is a remnant of _____________. Back of the lens/ Optic disc/ Hyaloid vascular system
What is coloboma? A structural defect in tissue
How does a congenital coloboma form? When the layers of the eye do not fuse completely.
Name three ocular/adnexa colobomas. Iris, Lid, Chorioretinal
Created by: Leequa