What are the three layers of the eye? - correct answer Fibrous tunic, vascular tunic, and nervous tunic
What are the five layers of the cornea from
... [Show More] anterior to posterior? - correct answer Epthelium, Bowmans Membrane, Stroma, Descemets Membrane, Endothelium
What controls the amount of light entering the eye? - correct answer Iris
How many rods and cones are in the eye? - correct answer About 120 million rods and 6 million cones
What is the name for the refractive condition where light comes in to focus directly on the retina? - correct answer Emmetropia
What is the name for the refractive condition where light comes in to focus behind the retina? - correct answer Hyperopia or far-sightedness
What is the name for the refractive condition where light comes in to focus in front of the retina? - correct answer Myopia or near-sightedness
What is the name for the refractive condition where light comes to focus on two different points? - correct answer Astigmatism (cylinder)
The onset of presbiopia typically begins at what age? - correct answer 40
The 6 extraocular muscles responsible for stabilization of the eye are: - correct answer Lateral rectus, medial rectus, superior rectus, inferior rectus, superior oblique, inferior oblique
What is the term for an eye that has a tendency to turn from it's normal position? - correct answer Phoria
What is the term for an eye that has definite or obvious turning from it's normal position? - correct answer Tropia
Phorias and tropias are defined by their direction of movement: outward, inward, downward, and upward.What are these terms? - correct answer Exotropia, Esotropia, hypotropia, hypertropia
We really see with our - correct answer Brains
Everyone will suffer from optical error this if they live long enough - correct answer presbiopia
Astigmatism means that the patient's cornea is - correct answer Misshapen
The fibrous tunic consists of - correct answer sclera and cornea
Fusion occurs in the - correct answer brain
Aqueous humor is produced in the - correct answer ciliary body
The index of refraction of the cornea is - correct answer 1.37
When light entering the eye, without corrective lenses, comes to a focus partially in front of the retina and partially in back of the retina, the patient's refractive error is - correct answer Mixed astigmatism
When light entering the eye, without corrective lenses, comes to a focus in front of the retina, the patient's refractive error is - correct answer Myopia
The patient normally has no need for any visual correction for distance but does require prescription lenses to see well at near. This patient's refractive error is known as - correct answer Presbiopia [Show Less]