eye chart


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eye chart

n.
A chart of letters and figures of various sizes, used to test visual acuity.
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Eye charts are subjective measures of sight, says Katherine High, director of the Center for Cellular and Molecular Therapeutics at Children's Hospital of Philadelphia, which sponsored the study.
Blind might one day see, suggest new studies in humans and mice: genetic tricks offer a light at the end of the tunnel
It not only evaluates how well an individual sees an eye chart, but also how well the person views faces, street signs, and newspaper print.
Do you need a low-vision exam?
In a further test carried out by Warwick University, 65% of those who failed a basic eye chart test were drivers.
MOTORING: Motorists `need to get their eyes tested'
To the rescue is Alchemy's new Medic Emergency Eye Kit priced at $42 that looks like a real first-aid kit with an eye chart on the flip-top lid.
PULSE ON THE BEAD NEW MEDICAL ALERT BRACELETS ACCESSORIZE WITH ELAN
In an open label safety study involving 26 patients with ocular histoplasmosis, visual acuity improved by an average of more than 1 line on a standard eye chart at 12 months (6.
FDA APPROVES VISUDYNE FOR MYOPIA/OCULAR HISTOPLASMOSIS
The decor includes such gems as a doctor's scale, an eye chart, an old-fashioned wheelchair, anatomically illustrated bedding, and storage space in an examination table with stirrups.
Clinical Chic
Inability to perceive the big E on a Snellen eye chart indicates very poor vision.
Vestibular testing and the big E
Some eye opening advice to educators and parents: Don't be overly impressed that children can pass an eye chart test with a 20/20 score.
The Eye Chart Does More Harm Than Good
11 (the ability to distinguish the largest eye chart symbol from a distance of 5 meters).
Corneal epithelial stem cells restore vision in some blind patients when transplanted - Japan study
After an average of three years following the operations, 22 of the 43 eyes experienced improvement, raising average seeing ability to a level by which patients could identify the largest symbol on a standard eye chart from a distance of 1 meter.
Stem-cell transplants work in cornea-damaged patients
In 1993, almost all surgeons planned refractive surgery based entirely on a patient's refraction, a test that determines the corrective lenses a patient needs to view the standard eye chart.
RISK IN TREND TO LINK REFRACTIVE LASERS TO CORNEAL TOPOGRAPHY
The Snellen, or "Big E," eye chart is a good screening tool, but it is only a screening tool.
My daughter had her vision screened at school. Is it still necessary for her to have an eye exam by an optometrist or ophthalmologist?

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