The patient at the clinic says to the nurse,"My doctor checked my eyes and told me my vision was 20 over 100 [20/100].What does that mean?" What is the best response by the nurse?

Question

Quizplus · Accepted Answer

Myopia,or nearsightedness,means that the person is able to see close objects well but not distant objects.For example,a person with 20/100 vision can see an object from 20 feet away that a person with normal sight could see from a distance of 100 feet.Hyperopia,or farsightedness,implies that the eye sees distant objects well.A person with hyperopia may have 20/10 vision-he can see an object form 20 feet that a normal eye can see from 10 feet.Glaucoma is a type of vision loss caused by increased pressure in the anterior cavity of the eyeball resulting in loss of peripheral vision.The fraction 20/100 is unrelated to glaucoma.Macular degeneration is the loss of central vision due to damage to the macula lutea,the central portion of the retina.This results in loss of central and near vision.The fraction 20/100 is unrelated to identifying macular degeneration.

The Patient at the Clinic Says to the Nurse,"My Doctor