The cornea endothelium is derived from which structure? | OphthalmologyWeb: The Ultimate Online Resource for Ophthalmologists

Thursday, April 17, 2008

The cornea endothelium is derived from which structure?

Neural crest
Endoderm
Mesoderm
Ectoderm

Correct Answer: Neural crest

The corneal endothelium is derived from the neural crest.

For more information on specular microscopes, click here.
For a video presentation by Kevin Corcoran "Medicare Reimbursement for Specular Microscopy", click here.

A Hollenhorst plaque is composed of:
1. calcium
2. fibrin
3. bacteria
4. cholesterol
check the answer
The most appropriate test to obtain for this patient is:
1. Blood pressure measurement
2. ANA
3. Chest X-ray
4. CD4 count
check the answer
A patient with the fundus lesion shown is at risk for developing:
1. cystoid macular edema
2. choroidal neovascularization
3. retinal detachment
4. hypotony maculopathy
check the answer
The most likely diagnosis is:
1. traction retinal detachment
2. tigroid fundus
3. epiretinal membrane
4. thyroid-related ophthalmopathy
check the answer
The vitreous particles of asteroid hyalosis are composed of:
1. hyaline
2. cholesterol
3. calcium
4. amyloid
check the answer

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