This is the device that makes optometrists famous for the question "one or two?" It has thousands of lens combinations that allows optometrists to determine what powers of lenses result in the best vision.
What is the refractor?
100
This is a condition in which a person doesn't have enough quality tears to lubricate and nourish the eye.
What is dry eye?
100
This is the white part of the eye.
What is the sclera?
100
This is a healthcare professional who provides primary vision care ranging from sight testing and correction to the diagnosis, treatment, and management of vision changes.
What is an optometrist?
200
Using a high intensity light source, this device looks for any diseases or abnormalities in the anterior portion of the eye, which includes the eyelids, lashes, lens, conjunctiva, cornea, and iris.
What is the slit lamp?
200
This is a condition in which a person cannot see things clearly unless they are relatively close to the eyes. It is also known as nearsightedness.
What is myopia?
200
This part of the eye controls the amount of light entering the eye.
What is the iris?
200
This is a technician trained to design, verify and fit eyeglass lenses and frames, contact lenses, and other devices to correct eyesight.
What is an optician?
300
An optometrist uses this to shine light into the patient's eye to observe the reflection off the patient's retina.
What is a retinoscope?
300
This is a medical condition in which the lens of the eye becomes progressively opaque, resulting in blurred vision.
What are cataracts?
300
This is the type of photoreceptor that is sensitive to dim light.
What are rods?
300
This is a medical doctor who specializes in the surgical care of the eyes and in the prevention of eye disease.
What is an ophthalmologist?
400
This instrument is used to measure the curvature of the cornea.
What is the keratometer?
400
This is a condition of increased pressure within the eyeball, causing gradual loss of sight.
What is glaucoma?
400
This is a semiliquid, jellylike substance that helps maintain the spherical shape of the eye.
What is vitreous humor?
400
This is the degree an individual will have upon completing optometry school.
What is a Doctor of Optometry degree? (O.D.)
500
This instrument is specifically used to measure the intraocular pressure of the eye.
What is the tonometer?
500
This disease is caused by the deterioration of the central portion of the retina. It is the leading cause of vision loss, affecting more than 10 million Americans.
What is macular degeneration?
500
This is the exact center of the retina that is known for having the greatest visual acuity.
What is the fovea?
500
This is the minimum number of years after receiving a bachelor's degree that a person will be in school for until they may become a licensed optometrist.