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

The viral disease affecting eye is

  1. Mononucleosis

  2. Roseola infantum

  3. Ocular herpes

  4. Viral meningitis
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ocular herpes is a contagious viral infection of the eye. Ocular herpes is the same strain of herpes that causes a cold sore--completely different from the sexually transmitted form of herpes. The Digital Journal of Ophthalmology from Harvard Medical School states that there are approximately 500,000 cases of ocular herpes treated every year in the United States. Symptoms include blurred vision, tearing and eye pain.

Multiple choice

The eye disease caused by the increased pressure in the eye ball is

  1. cataract

  2. glaucoma

  3. conjunctivitis

  4. ophthalmic neonatorum

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Glaucoma is caused by increased intraocular pressure that damages the optic nerve. Cataract (A) is lens clouding, conjunctivitis (C) is eye membrane inflammation, and ophthalmic neonatorum (D) is infant eye infection. The pressure build-up in glaucoma can lead to vision loss if untreated.

Multiple choice

Uveitis is inflammation of the uvea, the middle layer of the eye between the retina and the sclera (white of the eye), and can lead to vision loss. Which one of the following is not associated with uveitis?

  1. Pauci-articular arthritis in children

  2. Sarcoidosis

  3. Ankylosing spondylitis

  4. Graves’ disease

  5. Ulcerative colitis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Graves' disease is an immune system disorder that results in the overproduction of thyroid hormones (hyperthyroidism). Ophthalmopathy due to thyrotoxicosis does not involve the uveal tract.

Multiple choice

Which among the following is used to identify damage to the eye?

  1. Xylene cyanol

  2. Titan yellow

  3. Sudan II

  4. Rose Bengal
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Rose Bengal is a stain. Its sodium salt is commonly used in eye drops to stain damaged conjunctival and corneal cells and thereby identify damage to the eye. The stain is also used in the preparation of Foraminifera for microscopic analysis.

Multiple choice

Inflammation of the eyes is known as

  1. otology

  2. opthalmia

  3. odontology

  4. overiology

  5. cataract
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ophthalmia is the medical term for inflammation of the eyes, covering various inflammatory conditions. Cataract is a specific eye condition (clouding of the lens) but not the general term for inflammation. Otology relates to ears, odontology to teeth, and 'overiology' is not a real medical term. Ophthalmology is the branch of medicine dealing with eyes.

Multiple choice

Match the following lens and disease for which they are use ||||| |---|---|---|---| |1|convex lens|a|astigmatism| |2|concave lens|b|hypermetropia| |3|cylindrical lens|c|myopia|

  1. 1 - c, 2 - a, 3 - b

  2. 1 - b, 2 - c, 3 - a

  3. 1 - a, 2 - b, 3 - c

  4. 1 - b, 2 - a, 3 - c

  5. 1 - a, 2 - c, 3 - b
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Yes, it is correctly matched. Convex lens is used to treat hypermetropia. Concave lens is used to treat myopia. Cylindrical lens is used to treat astigmatism.

Multiple choice

Short sightedness is due to

  1. Shifting of the iris

  2. Weaker muscles

  3. Elongation of eye balls

  4. Weakening of the retina
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Short-sightedness (myopia) occurs when the eyeball is elongated (too long) or the cornea is too curved. This causes light to focus in front of the retina instead of on it. The iris controls pupil size, muscles control lens shape, and the retina is the light-sensing layer - none are the primary cause of myopia.

Multiple choice

Colour blindness is the inability to make out colour differences, under normal lighting conditions. Which of the following colour vision deficiencies the yellows and oranges appear pinkish to the individuals?

  1. Deuteranomaly

  2. Tritanomaly

  3. Protanomaly

  4. Deuteranopia

  5. Tritanopia
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Tritanopia is a very rare colour vision disturbance in which there are only two cone pigments present and a total absence of blue retinal receptors. Blues appear greenish, yellows and oranges appear pinkish, and purple colours appear deep red.

Multiple choice

Aman is suffering from ptosis of the eyelid. It may be caused by injury to the

  1. superior oblique muscle

  2. abducens nerves

  3. nerve to the levator palpebrae superioris muscle

  4. superior rectus muscle
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ptosis takes place in individual when the muscles that raise the eyelid, i.e. levator muscles is not strong enough to raise the eyelid. Frequently, it can be caused by the aponeurosis of the levator muscle and nerve abnormalities trauma.