Biology · Physics

Vision Defects and Eye Conditions

1,088 Questions

Vision defects and eye conditions questions focus on common visual impairments like myopia, cataracts, and glaucoma. These topics are regularly tested in the general science sections of competitive exams. Solve these questions to learn about optical defects and treatments.

Myopia and hypermetropiaCataracts and risk factorsGlaucoma treatmentsEye infection typesArtificial tears

Vision Defects and Eye Conditions Questions

Multiple choice general knowledge

A study of native born residents in Newland found that two-thirds of the children developed considerable levels of nearsightedness after starting school, while their illiterate parents and grandparents, who had no opportunity for formal schooling, showed no signs of this disability. If the above statements are true, which of the following conclusions is most strongly supported by them?

  1. Only people who have the opportunity for formal ...........schooling develop nearsightedness.

  2. People who are illiterate do not suffer from ...........nearsightedness.

  3. The nearsightedness in the children is caused by the ...........visual stress required by reading and other class work.

  4. Only literate people are nearsighted.

  5. One-third of the children are illiterate.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The children developed nearsightedness after starting school, while their illiterate grandparents (who never attended school) didn't. The correlation strongly suggests that something about schooling - specifically the visual stress of reading and close work - causes the nearsightedness. The timing (after starting school) and the difference (children vs grandparents who couldn't read) both support Option C.

Multiple choice softskills leadership

astigmatism

  1. eye defect which prevents proper focus

  2. substance which propels or drives forward (such as an explosive charge or a rocket fuel)

  3. lively

  4. stoical
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Astigmatism is an eye defect where the cornea or lens is irregularly curved, preventing light from focusing properly on the retina and causing blurred or distorted vision. It's a common vision problem correctable with glasses or contacts. Options B, C, and D describe propellants, liveliness, and emotional control respectively.

Multiple choice softskills leadership

cataract

  1. substance that dissolves another

  2. sharpness (of mind or senses of sight or hearing)

  3. great waterfall

  4. representation of words in the form of pictures or symbols
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cataract primarily means a large or high waterfall, but also commonly refers to a medical condition where the lens of the eye becomes cloudy, impairing vision. The double meaning bridges natural phenomena and medical terminology. The other options refer to solvents (A), acuity (B), and pictograms (D).

Multiple choice softskills leadership

jaundice

  1. medical condition in which the skin, the white part of the eyes, etc. turn yellow

  2. monkeylike

  3. environment

  4. (of something bad) widespread
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Jaundice is a medical condition characterized by yellowing of the skin and whites of the eyes, caused by excess bilirubin in the blood. It often indicates liver problems, bile duct obstruction, or excessive breakdown of red blood cells. The word comes from the French 'jaune' meaning yellow.

Multiple choice softskills communication

Find out the meaning of: ABERRATION

  1. DEVIATION FROM THE NORMAL

  2. AS USUAL

  3. APPROBATION

  4. REDUCTION
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Aberration means a deviation, departure, or divergence from what is normal, typical, or expected. "As usual" means normal behavior (the opposite). "Approbation" means approval or praise, and "reduction" means lessening - both are incorrect.

Multiple choice softskills communication

catechism

  1. eye abnormality (causing a gradual loss of eyesight)

  2. violent and sudden event or change

  3. showing or feeling little interest

  4. book for religious instruction in question-and-answer form
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A catechism is specifically a book containing religious instruction in question-and-answer form, used for teaching the principles of Christian doctrine. The other options define different terms - catachysis refers to eye abnormality, cataclysm means violent event, catalepsy involves little interest. This is a straightforward vocabulary question.

Multiple choice

A visual defect known as astigmatism is the result of

  1. an eyeball that is too short

  2. an eyeball that is too long

  3. an abnormal distribution of visual receptors in the retina

  4. a misshapen cornea or lens
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Astigmatism is caused by an irregular curvature of the cornea or lens, leading to distorted vision at all distances. An eyeball that is too short causes farsightedness (hyperopia), while too long causes nearsightedness (myopia). Abnormal receptor distribution would affect different aspects of vision.

Multiple choice

Nonprescription sunglasses shield the wearer's eyes from damaging ultraviolet sunlight. Squinting, however, provides protection from ultraviolet rays that are at least as good as the protection from nonprescription sunglasses. There is, therefore, no health advantage to be gained by wearing nonprescription sunglasses rather than squinting.

Which of the following, if true, most seriously weakens support for the conclusion above?

  1. Many opticians offer prescription sunglasses that not only screen out ultraviolet Sunlight but also provide corrective vision.

  2. Some nonprescription sunglasses provide less protection from ultraviolet sunlight than does squinting.

  3. Squinting strains facial muscles and causes headaches and fatigue.

  4. Many people buy sunglasses because they feel that sunglasses are fashionable.

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Headaches and fatigue are health problems that would weaken the argument that squinting is just as good as wearing sunglasses.

Multiple choice

Directions: Fill the blanks with most appropriate answer from the given options.

A young man has been experiencing pain and redness in his eyes for the past few days. Ideally, for a medical examination, he would most likely go to an _________

  1. ophthalmologist

  2. optometrist

  3. occult

  4. optician
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The medical expert for eye related ailments is ophthalmologist; optometrist tests/measures eyesight and prescribes glasses; optician makes glasses.