Ocular Anatomy and Conditions Questions and Answers Flashcards
7 cards from real ABO NOCE Basic Opticianry practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Ocular Anatomy and Conditions Questions and Answers flashcards as text
Which part of the uveal tract provides the eye with its primary blood supply?
Answer: Choroid
The choroid is a highly vascular layer that supplies oxygen and nutrients primarily to the outer retina.
Horner's syndrome affecting the eye includes miosis, ptosis, and which other sign?
Answer: Anhidrosis of the ipsilateral face
Disruption of the sympathetic pathway causes the classic triad: miosis, ptosis, and anhidrosis on the same side.
The vitreous humor is attached most firmly to the retina at the:
Answer: Optic nerve head and ora serrata
The vitreous base, which spans the ora serrata and pars plana, is its firmest attachment point; the optic disc attachment is also strong.
Which type of glaucoma is characterized by a sudden, painful rise in intraocular pressure with a shallow anterior chamber?
Answer: Acute angle-closure glaucoma
Acute angle-closure glaucoma occurs when the iris blocks aqueous drainage at the iridocorneal angle, causing a rapid IOP spike with pain and red eye.
The crystalline lens is held in place by structures called:
Answer: Zonules of Zinn
Zonular fibers (zonules of Zinn) connect the lens capsule to the ciliary body and maintain lens position.
Which retinal condition involves 'sea-fan' neovascularization and is associated with sickle cell disease?
Answer: Proliferative sickle cell retinopathy
Proliferative sickle cell retinopathy produces peripheral sea-fan neovascular fronds due to ischemia from sickling in retinal vessels.
Bowman's layer of the cornea is unique because it:
Answer: Does not regenerate once damaged
Bowman's layer is acellular and cannot regenerate; damage results in permanent scarring.