A person is able to see objects clearly only when these are lying at distances between 50 cm and 300 cm from his eye.
What kind of defects of vision is he suffering from?
What kind of lenses will be required to increase his range of vision from 25 cm to infinity? Explain briefly.
Answers
Answered by
4
Presbyopia is a condition associated with aging of the eye that results in progressively worsening ability to focus clearly on close objects. Symptoms include a hard time reading small print, having to hold reading material farther away, headaches, and eyestrain. Different people will have different degrees of problems. Other types of refractive errors may exist at the same time as presbyopia.Some with presbyopia choose varifocal or bifocal lenses to eliminate the need for a separate pair of reading glasses.
Similar questions