Search

1 to 10 of 107
Sort by

Glossary
Delayed Visual Maturation

Print Version see also Cortical Visual Impairment Delayed visual maturation (DVM) is seen in newborns who initially appear as if they cannot see or are unable to follow any objects. This usually improves by about 4-6 months of age, but sometimes can take up to 12 months of age to...



Glossary
Williams Syndrome

Print Version What causes Williams Syndrome? Williams Syndrome is caused by a deletion of genetic material from a specific region of chromosome 7 that affects an elastin gene. Elastin is a protein that gives blood vessels strength and the ability to stretch. It is a rare disorder and is also...


Glossary
Vision Therapy

Print Version What is vision therapy? “Vision therapy” is a term used by optometrists. Optometrists define vision therapy as an attempt to develop or improve visual skills and abilities; improve visual comfort, ease, and efficiency; and change visual processing or interpretation of visual...


Glossary
Vision Screening

Print Version What is vision screening? Vision screening is an efficient and cost-effective method to identify children with visual impairment or eye conditions that are likely to lead to vision loss so that a referral can be made to an appropriate eye care professional for further...


Glossary
Trichiasis

Print Version Why are my child’s lashes turning in towards the eye? Trichiasis is the misdirection of eyelashes toward the globe. Instead of the lashes pointing away from the eye, they turn in towards the eye. What are the symptoms of trichiasis? It can be asymptomatic or cause pain,...


Glossary
Treatment for Progressive Myopia

Print Version See ‘ Progressive (High) Myopia ’ for the definition. During childhood, myopia is typically treated with glasses or contact lenses. Refractive surgery, such as LASIK, is typically used in adults once the refractive error has stabilized. In progressive myopia, the near-sightedness...


Glossary
Toxoplasmosis

Print Version What is toxoplasmosis? Toxoplasmosis is a disease that results from infection with the protozoan intracellular parasite Toxoplasma gondii. In the eye, Toxoplasma infections frequently cause significant inflammation and subsequent scarring which may temporarily or permanently...


Glossary
Thyroid Eye Disorders

Print Version WHAT IS THE THYROID? The thyroid is a butterfly shaped gland located at the base of the front of the neck. The thyroid gland regulates the thyroid hormone and plays an important role in regulating body metabolism. WHAT ARE EUTHYROID, HYPERTHYROID, AND HYPOTHYROID? Normal...


Glossary
Third Nerve Palsy

Print Version What is a third nerve palsy? The third cranial nerve controls the movement of four of the six eye muscles. These muscles move the eye inward, up and down, and they rotate the eye. The third cranial nerve also controls constriction of the pupil, the position of the upper eyelid,...