This is the white part of the eye.
What is sclera?
This common genetic condition affects around 8% of males.
What is color vision deficiency?
This material produces the thinnest lens design for a high Rx.
What is 1.74?
This machine evaluates a person's peripheral vision.
What is visual field analyzer?
This is the most common eye color.
What is brown?
This clear structure protects the iris and pupil.
What is cornea?
This condition is when an eye is turned out in misalignment.
What is exotropia?
This causes an image to shift optically in a given direction.
What is prism?
This machine checks for anterior surface irregularities.
What is corneal topography?
This condition is the fear of color.
What is chromophobia?
This photoreceptor helps us see better in dim conditions.
What is rod?
This condition is most often associated with a high intraocular pressure.
What is glaucoma?
A person with an Rx of -4.00 can focus out until this distance.
25 cm
This device holds many lenses used for refraction testing.
What is phoropter?
This person invented bifocals.
Who is Benjamin Franklin?
The flexibility of this structure helps us change focus.
What is lens?
This congenital condition is when someone is born without irises.
What is aniridia?
Convert -3.50+4.25x034 to minus cylinder format.
What is +0.75-4.25x124?
This instrument measures the thickness of the cornea.
What is pachymeter?
This animal has the largest eyes (~27 cm).
What is colossal squid?
Dogs and cats have this extra layer to increase visibility in the dark.
What is tapetum lucidum?
This is caused by an increased pressure around the brain resulting in vision changes and headaches.
What is idiopathic intracranial hypertension? (Pseudotumor cerebri)
This is a measure of a material's dispersion factor.
What is Abbe value?
This instrument is used to remove rust from the cornea.
What is Alger brush?
This animal's cornea is so similar to human's, it has been used in a transplant
What is a shark?