Question

A student has difficulty reading the blackboard while sitting in the last row. What could be the defect the child is suffering from? How can it be corrected?

Answer 1

the student is suffering from myopia
it can be corrected by using concave lens

Answer 2

Dear Student,

The student can't read at blackboard (long distance), this is myopia.

◆ Myopia-

• Myopia is a condition of the eye where close objects appear clearly, far ones appear blurry.
• Also known as short-sightedness and near-sightedness.
• In this light focuses in front of the retina.

# Correction of myopia -

• Myopia is managed with providing patients with concave lens (negative leans) in the form of spectacles or contact lenses.
• Some surgeries are also there but not preferred.

*(Trick for exams negative lens means myopia & positive lens means hypermetropia)

Hope that was useful...