A Journey into the Eye

15 Points Per Correct Answer - No time limit  

1. The three concentric layers comprising the globe are known as what? Coats Ciliary Zonules Orbital Layers Tunics

2. The only purpose of the sclera is to: Maintain the shape of the globe Refract light onto the retina Improve visual acuity Help the iris adjust to ambient light

3. In accommodation, what changes the shape of the lens? Iris Choroid Uvea Ciliary body

4. A decrease in the magnitude of accommodation due to the hardening of the lens substance is called what? Amblyopia Presbyopia Deuteranopia Glaucoma

5. The most acute visual area on the retina is called what? White Spot Fovea centralis Macula densa Foramen magnum

6. In myopia, what is the shape of the globe in comparison to a normal one? It is longer It is wider It is shorter It is larger

7. In osteogenesis imperfecta type II, a rare disease in which the bones do not develop normally and are subject to frequent fractures, a discoloration of the sclera is often noted. What color is it? Blue Yellow Clear Deep red

8. To be considered legally blind in the United States, one's vision has to be worse than what measurement even with corrective lenses? 20 over 2000 20 over 200 20 over 400 20 over 800

9. Heterochromia irides is often the result of an accident, genetics, or what rare disorder which also causes premature greying of the hair, partial cochleal deafness, and white eyebrows and forelock? Aarskog-Scott Syndrome Albinism Oculocutaneous melanocytosis Waardenburg Syndrome

10. The medical term for colorblindness in which everything is seen in varying shades of grey is what? Deuteranopia Griseofulvin Amblyopia Monochromatism