Near-sightedness in humans is called:

Correct option is B

Ans. (b) Myopia

Sol.Myopia, also known as near-sightedness, is a common vision condition where a person can see nearby objects clearly but has difficulty seeing distant objects. This occurs because the eyeball is too long or the cornea is too curved, causing light to focus in front of the retina instead of directly on it. Myopia is usually corrected with concave lenses or laser surgery.

Information Booster:

• Myopia is one of the most common refractive errors worldwide.
• It is often hereditary but can also develop due to prolonged near-work activities.
• Symptoms include blurry distance vision, squinting, and eye strain.
• High myopia increases the risk of retinal detachment and glaucoma.
• It is commonly diagnosed using a Snellen eye chart test.
• Regular outdoor activities in childhood may reduce myopia progression.
• Orthokeratology (Ortho-K) lenses can temporarily reshape the cornea to correct myopia.

Additional Information:

• (a) Cataract – A condition where the eye’s natural lens becomes cloudy, causing blurred vision.
• (c) Presbyopia – Age-related vision loss, making it difficult to see close objects, usually after 40.
• (d) Hypermetropia – Also called far-sightedness, where distant objects are clearer than nearby objects.