BIOLOGICAL BASES OF BEHAVIOR
THE NERVOUS AND ENDOCRINE SYSTEMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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cornea
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retina
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rods and cones
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pupil
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Detailed explanation-1: -An abrasion is a shallow scratch. So a corneal abrasion is a scratch to your cornea. A corneal foreign body is an object, such as a grain of sand, that gets stuck in your cornea and irritates it. See a doctor as soon as possible if you think you have a corneal scratch or something in your cornea.
Detailed explanation-2: -The cornea can be scratched by contact with dust, dirt, sand, wood shavings, plant matter, metal particles, contact lenses or even the edge of a piece of paper.
Detailed explanation-3: -Sand and other small particles can end up scratching your cornea, which is the outer layer of your eye. This is called a corneal abrasion. A corneal abrasion doesn’t usually cause permanent eye damage and may heal on its own within 1 to 3 days.
Detailed explanation-4: -You should fully recover from a minor scratch without permanent eye damage. But deep scratches can cause infections, scars, and other problems. If you don’t take care of them, they can lead to long-term vision problems. Report any unusual symptoms, including a return of pain after treatment, to your eye doctor.
Detailed explanation-5: -Symptoms of a Scratched Cornea A Gritty Sensation in the Eye. Eye Pain. Light Sensitivity. Excessive Tearing.