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Definition
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Term
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Definition
| THE ABILITY OF THE EYE TO FOCUS SPECIFICALLY ON CLOSE OBJECTS (LESS THAN 20 FEET AWAY) |
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Term
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Definition
| THE PLACE WHERE THE FIBERS FROM THE MEDIAL SIDE OF EACH EYE CROSS OVER TO THE OPPOSITE SIDE OF THE BRAIN. |
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Definition
| IT IS A CONTINUATION OF THE OPTIC NERVE AND RUNS FROM THE OPTIC CHIASM (WHERE HALF OF THE INFORMATION FROM EACH EYE CROSSES SIDES, AND HALF STAYS ON THE SAME SIDE) TO THE LATERAL GENICULATE NUCLEUS. |
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Definition
| THE MASSIVE FANLIKE FIBER SYSTEM PASSING FROM THE LATERAL GENICULATE BODY OF THE THALAMUS TO THE VISUAL CORTEX. |
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Term
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Definition
| TWO-EYED VISION THAT PROVIDES FOR DEPTH PERCEPTION. |
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Term
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Definition
| THE LOSS OF THE SAME SIDE OF VISUAL FIELD OF BOTH EYES, RESULTING FROM DRAINAGE TO THE VISUAL CORTEX ON ONE SIDE; CAN'T SEE PAST THE MIDDLE TO EITHER THE RIGHT OR LEFT SIDE. |
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Term
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Definition
THE VISUAL CORTEX OF THE BRAIN IS THE PART OF THE CEREBRAL CORTEX RESPONSIBLE FOR VISUAL INFORMATION LOCATED IN THE OCCIPITAL LOBE, IN THE BACK OF THE BRAIN. |
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Term
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Definition
| THE REFLEXIVE MOVEMENT OF THE EYES MEDIALLY WHEN WE VIEW CLOSE OBJECTS. |
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Term
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Definition
| IMMEDIATE CONSTRICTION OF THE PUPILS WHEN THE EYE IS SUDDENLY EXPOSED TO BRIGHTER LIGHT. PREVENTS EXCESSIVE BRIGHT LIGHT FROM DAMAGING PHOTORECEPTORS. |
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Term
| ACCOMODATION PUPILLARY REFLEX |
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Definition
| CONSTRICTION OF THE PUPILS REFLEXIVELY WHEN CLOSE OBJECTS ARE VIEWED; PROVIDES FOR MORE ACUTE VISION. |
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Term
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Definition
| THE EYE THAT FOCUSES IMAGES CORRECTLY ON THE RETINA-"HARMONIOUS VISION". |
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Term
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Definition
| NEARSIGHTEDNESS; DISTANT OBJECTS APPEAR BLURRY. |
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Term
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Definition
| FARSIGHTEDNESS; SEE DISTANT OBJECTS; RESULTS FROM AN EYEBALL THAT IS TOO SHORT. |
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Term
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Definition
| BLURY IMAGES OCCUR BECAUSE POINTS OF LIGHT ARE FOCUSED NOT AS POINTS ON THE RETINA, BUT AS LINES. |
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