Describe the anatomy and histology of the cornea

Assignment Help Biology

Reference no: EM13494624

Confrontation and pupil testing is normal. Dilated fundus exam is also normal. Slit -lamp exam suggests some significant variation in corneal thickness; an optic section seems to be thinner inferiorly in the right eye and less pronounced in the left eye. Also you notice some vertical striae in the posterior cornea OS and a "greenish-brown" circular ring (see photos). You order corneal topography analysis.

1137_Whats an optic section.png

Guiding Questions

1. What's an optic section?
2. Describe the anatomy and histology of the cornea.
3. What is the function of each layer of the cornea?
4. Why is the cornea transparent?
5. How does the composition of the sclera differ from the cornea? If the sclera is very thin (Stapholomata)
or a piece of it is dried out, it becomes transparent. Explain.
6. What controls the hydration of the cornea? What is the thickness-hydration relationship? Do the thin
areas seen by slit-lamp examination represent a change in hydration?
7. What are corneal striae?
8. What is the colored ring?

Reference no: EM13494624

Questions Cloud

What actions should jorgenson take : Compute the price and efficiency variances of Stuckey, Inc., for each direct material and direct manufacturing labor in June 2011.

Estimate the minimum initial speed of the dart : A 21.00 lead sphere is hanging from a hook by a thin wire 3.90 long, and is free to swing in a complete circle. What must be the minimum initial speed of the dart so that the combination makes a complete circular loop after the collision

What are the treatment options for keratoconus : How does topography work, why does the normal cornea flatten towards the periphery

What is the tensile stress in the rod : As structural steel rod has a radius R = 9.5 mm and a length L = 81 cm. A force F = 6.2 × 104 N (about 7 tons) stretches it along its length. What is the tensile stress in the rod

Describe the anatomy and histology of the cornea : Describe the anatomy and histology of the cornea, what is the function of each layer of the cornea and why is the cornea transparent?

What fasb code should we use for this case : What FASB code should we use for this case? Does it violate the GAAP?

What is the refractive diagnosis : What is the refractive diagnosis? Be prepared to explain myopia, hyperopia and astigmatism and what proportion of total refractive power is contributed by the cornea

Estimate the mass of the ball : A bat hits a moving baseball. If the bat delivers a net eastward impulse of 1.3 N-s and the ball starts with an initial horizontal velocity of 3.8 m/s to the west and leaves with a 5.1 m/s velocity to the east

Why does the normal cornea flatten towards the periphery : Why does the normal cornea flatten towards the periphery, and what are the treatment options for keratoconus? Explain how each could improve vision, their limitations, and possible complications.

User Account

All Pages