This topic contains a solution. Click here to go to the answer

Author Question: Visual acuity of 20/200 means that a person sees at a. 200 feet what a normally sighted person ... (Read 57 times)

humphriesbr@me.com

  • Hero Member
  • *****
  • Posts: 550
Visual acuity of 20/200 means that a person sees at
 
  a. 200 feet what a normally sighted person sees at 20 feet.
  b. 100 feet what a normally sighted person sees at 10 feet.
  c. 20 feet what a normally sighted person sees at 200 feet.
  d. 10 feet what a normally sighted person sees at 100 feet.

Question 2

The definition of legal blindness is
 
  a. a field of vision of less than 20 degrees.
  b. vision of 20/200 or worse in the better eye with correction.
  c. vision of 20/200 or worse in the better eye with correction or a field of vision of less than 20 degrees.
  d. vision of 20/200 or worse in the better eye without correction or a field of vision of greater than 20 degrees.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Dinolord

  • Sr. Member
  • ****
  • Posts: 313
Answer to Question 1

c

Answer to Question 2

c




Dinolord

  • Sr. Member
  • ****
  • Posts: 313

 

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

For a complete list of videos, visit our video library