Anatomy
This transparent structure at the front of the eye helps to focus light.
What is the cornea?
This condition is characterized by a clouding of the lens, often associated with aging.
What is a cataract?
This is the chart used to test how well you can see at a distance.
What is the Snellen chart?
These are commonly used to correct myopia and hyperopia.
What are glasses?
The most rare eye color.
What is green?
This part of the eye is responsible for controlling the size of the pupil.
What is the iris?
This term refers to nearsightedness, where distant objects appear blurry.
What is myopia?
This test uses lights to check your peripheral vision.
What is a visual field test?
This type of lens can be used to correct presbyopia, allowing for clear vision at multiple distances.
What are bifocal or multifocal lenses?
The structure in the eye that doesn’t contain blood vessels.
What is the cornea?
The retina is composed of photoreceptor cells known as these.
What are rods and cones?
This eye condition causes a loss of central vision and is often associated with aging.
What is age-related macular degeneration?
This simple device is used to measure the pressure inside your eye.
What is a tonometer?
This surgical procedure reshapes the cornea to improve vision.
What is LASIK?
The name of the condition where a person has multi-colored eyes.
What is heterochromia iridum?
This gel-like substance fills the space between the lens and the retina.
What is the vitreous humor?
This is a common condition that affects the tear film, leading to dryness and irritation.
What is dry eye syndrome?
During this test, you are asked to read letters or numbers while covering one eye.What is a visual acuity test?
What is a visual acuity test?
These devices sit on the surface of the eye and can correct refractive errors.
What are contact lenses?
The weight of the average human eye.
How much is 7.5 grams?
This nerve transmits visual information from the eye to the brain.
What is the optic nerve?
This refractive error occurs when the eye is too short, causing difficulty seeing close objects.
What is hyperopia?
This test is often done to check for color blindness using patterns made of colored dots.
What is the Ishihara test?
This is the term for the ability of the eye to focus on near objects, which declines with age.
What is accommodation?
The percent of people who wear glasses in the US?
What is 63%?