Phillips Eye Institute
Skip section navigation
Eye health information and videos
There are many types of vision problems. Conditions like these can cause blurred vision, halos, blind spots, floaters, and other symptoms:
Changes in vision, blurriness, blind spots, halos around lights, or dimness of vision should always be evaluated by a medical professional. Such changes may represent an eye disease, aging, eye injury, or a condition like diabetes that affects many organs in your body.
Whatever the cause, vision problems should never be ignored.
Amblyopia (lazy eye)
Amblyopia occurs when the brain and eyes do not work together properly.
The lens of the eye is normally clear. If the lens becomes cloudy, the condition is known as a cataract.
Diabetic retinopathy is caused by damage to blood vessels of the retina.
A group of eye conditions that lead to damage to the optic nerve, the nerve that carries visual information from the eye to the brain.
An eye disorder that damages the center of the retina, which is called the macula. This makes it difficult to see fine details.
When the eyes focus incorrectly, making distant objects appear blurred.
Retinitis pigmentosa (RP)
An eye disease in which there is damage to the retina. The damage gets worse (progresses) over time.
Strabismus (crossed eyes)
Strabismus is a disorder in which the eyes do not line up in the same direction when focusing. The condition is more commonly known as "crossed eyes."
Vision problems that are left undetected and untreated may lead to vision loss and in some cases blindness. Early detection is the key to minimizing vision loss.
The following are a few vision tests performed at Phillips Eye Institute:
Routine eye examination
A standard ophthalmic exam is a series of tests done to check your vision and the health of your eyes.
Color vision test
A color vision test checks your ability to distinguish between different colors.
Visual acuity test
The visual acuity test is used to determine the smallest letters a person can read on a standardized chart or card held 14 - 20 feet away.
The refraction test is an eye exam that measures a person's prescription for eyeglasses or contact lenses.