Tag: disorders of nervous system

Questions Related to disorders of nervous system

World Braille Day is observed on

evs we are special defects of eye disorders of nervous system braille script

  1. 4th January

  2. 21st January

  3. 14th January

  4. 4th March

Show answer
Correct Option: A
Explanation:
  • World Braille Day is annually celebrated on January 4, the birthday of Braille inventor, Louis Braille. 
  • The day recognizes the contributions of Louis Braille in helping blind and visually impaired people to read and write. Hence, World Braille Day is observed on 4th January.
    •   So, the correct answer is '4th January'.

Braille script is read from

evs we are special defects of eye disorders of nervous system braille script

  1. Right to left

  2. Left to right

  3. Top to bottom

  4. Bottom to top

Show answer
Correct Option: B
Explanation:
Braille was named after the creator, Louis Braille, a Frenchman who lost his sight as a result of childhood accident. It involves the usage of 6 dots and the direction is left to right. The characters have rectangular blocks called cells that have tiny bumps called raised dots.
So, the correct answer is 'Left to right'.

In colour blindness red, green and other colours appear as

evs we are special defects of eye disorders of nervous system braille script

  1. White

  2. Yellow

  3. Grey

  4. Pink

Show answer
Correct Option: C
Explanation:

  • Colour blindness is not really blindness it is the inability to see color. Red-Green color blindness is a sex-linked recessive disorder. 
  • The gene for the color receptor is located on X chromosome any defect in this gene causes a person to lose his ability to see red and green. 
  • For a colorblind person, red and green colors appear, Grey,

So, the correct answer is 'Grey'.

What kind of paper is used for Braille Script?

evs we are special defects of eye disorders of nervous system braille script

  1. The conventional paper is used.

  2. Braille paper is about as thick as a file folder or index card.

  3. Any kind of paper can be used.

  4. A 75 GSM thick paper is used.

Show answer
Correct Option: B
Explanation:
Braille was named after the creator, Louis Braille, a Frenchman who lost his sight as a result of childhood accident. It involves the usage of 6 dots and the direction is left to right. The paper used is think as a file folder or index card for proper sensing by the visually impaired people. The characters have rectangular blocks called cells that have tiny bumps called raised dots.
So, the correct answer is 'Braille paper is about as thick as a file folder or index card'.

Too short eye ball and too flat lens produce

evs we are special defects of eye disorders of nervous system braille script

  1. Astigmatism

  2. Presbyopia

  3. Near sightedness

  4. Far sightedness

Show answer
Correct Option: D
Explanation:
When the eye ball becomes too short or lens get flattened, light rays instead of getting focussed on the retina, get focussed behind the retina. Hence, the image is formed behind the retina. This condition is called hypermetropia, also known as long-sightedness. In this disorder, vision of nearby objects gets blurred. It is corrected using convex rays which help to focus the rays on the retina.
So, the correct answer is 'Far sightedness'. 

Braille script is 

evs we are special defects of eye disorders of nervous system braille script

  1. A special type of script that is used by people who cannot see.

  2. A special type of script that is used by people who cannot hear.

  3. A special type of script that is used by people who cannot speak.

  4. None of the above.

Show answer
Correct Option: A
Explanation:

  • Braille is a tactile writing system used by people who are visually impaired. It is traditionally written with embossed paper.
  •  Braille users can read computer screens and other electronic supports using refreshable braille displays. 
  • They can write braille with the original slate and stylus or type it on a braille writer, such as a portable braille notetaker or computer that prints with a braille embosser. Hence, the Braille script is A special type of script that is used by people who cannot see. 
So, the correct answer is ' A special type of script that is used by people who cannot see.

If a patient suffers a stroke that destroys the optic tract on the right side of the brain, which of the following visual defects will result?

evs we are special defects of eye disorders of nervous system braille script

  1. There will be no vision in the left eye, but vision will be normal in the right eye.

  2. The patient will not perceive images of objects striking the left half of the retina in the left eye.

  3. The patient will not perceive images of objects striking the right half of the retina in the right eye.

  4. Neither eye will perceive objects in the right side of the patient's field of view.

Show answer
Correct Option: B

Identify the odd.

evs we are special defects of eye disorders of nervous system braille script

  1. Stigma

  2. Style

  3. Pollen

  4. Ovary

Show answer
Correct Option: A

Find the odd one out of the following 

evs we are special defects of eye disorders of nervous system braille script

  1. $Nightblindness$

  2. $Glaucoma$

  3. $Cataract$

  4. $Hyperglycemia$

Show answer
Correct Option: A

Write true or false and correct the incorrect statement.
Contact dermatitis is an allergy of the eyes.

evs we are special defects of eye disorders of nervous system braille script

  1. True

  2. False

Show answer
Correct Option: A
Explanation:

Contact dermatitis is an allergy of the eyes. It is when the area around the eyelids comes into contact with an irritating substance.