But Why: A Podcast for Curious Kids Why do we have two eyes if we only see one image?
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Jan 26, 2024 Learn about the basics of eyes and eye exams, the anatomy and function of the eyes, the purpose of two eyes and depth perception, correcting strabismus and testing depth perception, and measuring glasses prescription and the benefits of glasses and contact lenses.
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The Soup Spoon Occluder
- Dr. Singh uses an occluder that looks like a soup spoon and kids sometimes try to eat with it.
- The occluder helps test each eye separately by covering one eye while the other looks at a chart across the room.
Take Off Glasses For Vision Tests
- Remove your glasses for parts of the exam so the doctor can test your vision both with and without correction.
- Use matching cards or symbols if you are shy or still learning letters to get accurate visual acuity measurements.
Eyes Are Optical Devices; Brain Sees
- Eyes are optical devices that deliver images to the brain, which is where seeing actually happens.
- The retina captures an upside-down image and the optic nerve sends it to the brain to be interpreted.