A student sitting on last bench in a classroom cannot see clearly words written on the blackboard. He is suffering froma)long sightednessb)short sightednessc)astigmatismd)long sightedness as well as short sightednessCorrect answer is option 'B'. Can you explain this answer?

Question

Answer

A is correct because blackboard are not long distance
from the last students

Answer

Actually, it is a myopic defect of vision in which person can see only nearby object. This is because it is called short-sightedness

Answer

Short sightedness also called myopia . It's actually a defect of vision in which the person suffering is able to see nearby objects clearly but he/she is unable to see distant object with clarity like the stuff written on blackboard can't be seen by that person from last bench. The person uses concave lens for correction in myopia.

Answer

Short-sightedness: The Correct Answer

Explanation:
Short-sightedness, also known as myopia, is a common refractive error that affects the ability to see distant objects clearly. People with short-sightedness can see nearby objects clearly, but objects in the distance appear blurred or fuzzy.

Reasons for Short-sightedness:
Short-sightedness occurs when the eyeball is too elongated or the cornea (the clear front surface of the eye) is too curved. These structural abnormalities cause the light entering the eye to focus in front of the retina instead of directly on it. As a result, the images received by the retina are blurry.

Symptoms of Short-sightedness:
The most common symptom of short-sightedness is difficulty seeing objects in the distance clearly. People with short-sightedness may also experience eyestrain, headaches, and squinting when trying to see distant objects.

Impact on Classroom Situations:
In the given scenario, the student sitting on the last bench of the classroom is unable to see the words written on the blackboard clearly. This indicates that the student is suffering from short-sightedness. Due to the elongated shape of the eyeball or the curved cornea, the light entering the student's eyes focuses in front of the retina, resulting in blurred vision for distant objects like the blackboard.

Management of Short-sightedness:
Short-sightedness can be corrected using glasses or contact lenses. These optical devices help to refract the light in a way that compensates for the structural abnormalities in the eye, allowing the light to focus directly on the retina. This corrects the blurry vision and enables the person to see distant objects clearly.

Conclusion:
In conclusion, the student's difficulty in seeing the words on the blackboard clearly indicates that they are suffering from short-sightedness. This refractive error can be managed with the use of glasses or contact lenses, which help to focus the light properly on the retina, thereby improving distance vision.

Answer

Shortsightedness which is also known as Myopia....

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