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Alaska Blind Child Discovery |
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A
cooperative, charitable research project to vision screen every preschool
Alaskan |
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Amblyopia Detection by Camera |
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Home |
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ABCD History |
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Kids Eye Disorders |
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Amblyopia |
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Vision Screening |
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Issues |
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ABCD Clinics |
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References |
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Contact ABCD |
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Canon TX1 |
Gateway DV-S20 Photoscreener (center). Kyocera SL300R photoscreen of anisometropia (right). Two Gateway images; horizontal and vertical, of anisometropic amblyopic patient cured of amblyopia with early ABCD detection and compliant amblyopia therapy (above two images). | |||||
ADBC Video |
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Digital cameras manufactured such that the flash is located near the lens produce a bright red reflex in the pupils that can be used to determine risk factors for amblyopia. When a child's eye is not focused on the camera, a light crescent appears in the pupil instead of a uniform dark red color produced by a focused, well-aligned eye. ABCD has purchased several digital cameras with flash-to-lens distance short enough to produce good photoscreening images. These cameras have been calibrated for threshold-levels of amblyogenic unequal farsightedness (hyperopic anisometropia) in a normal young subject (Andrew Arnold) who wore known powered myopic contact lenses to induce known amounts of unequal farsightedness and astigmatism (Alaska Med. September/October 2004;46(3):63-72). An iPhone 4 has the potential to work as a photoscreener. | |||||
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Gobiquity has developed apps for various smart phones called GoCheckKids. Smart phones have the "design flaw" of keeping the flash near the lens. |
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Kodiak ADBC success Story | Current
Camera Choices: |
iPhone Photoscreen | KidsVisionCheck app | ||
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