18. A patient\' visual acuity was tested using a Snellen chart The reoults indic

Question

18. A patient' visual acuity was tested using a Snellen chart The reoults indicated that her vision was 30/se What does this result mean Following eye surgery, a man was required to wear an eye patch over his right eye. What effect will this patch have on the man's vision? 20. During a test for near point accommodation, Subject A had an accommodation distance of 15 cm in both eyes, and Subject B accommodation distance of 30 cm. Which one is likely the younger person? Explain. 21. Explain why many vertebrates, including cows and domestic dogs and cats, have much better night vision than humans 22. Describe the tests you would use to assess a patient's hearing acuity. What results would you expect if the patient's ability to hear and localize sounds was suspected to be below normal 23. During a Weber test, the arm of a tuning fork was placed on the patient's forehead. She was able to hear the tone in the left ear, but not in the right ear. Explain what these results indicate

Explanation / Answer

18) 20/50 vision on snellen's chart means that the person is able to visualise things at a distance of 20feet which otherwise could very well be visible to a normal person at a distance of 50feet far from the object.

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