Name one defect of vision (or eye) which cannot be corrected by any type of spectacle lenses.

The defect of vision which cannot be corrected by using spectacles is :

Defect of vision that cannot be corrected by spectacles is:

Name any two defects of vision which can be corrected by using spectacles.

Mr Bharat's 65 year old mother was complaining about blurred vision in both the eyes due to which she could not see things clearly, Mr Bharat took his mother to an eye hospital. The doctor examined her eyes carefully and concluded that she has a medical condition which could not be corrected by using any type of spectacle lenses and it required surgery. Her eyes were operated upon and she could then see once again properly. What could be the defect in the eyes of Mr Bharat's mother?

Mr Bharat's 65 year old mother was complaining about blurred vision in both the eyes due to which she could not see things clearly, Mr Bharat took his mother to an eye hospital. The doctor examined her eyes carefully and concluded that she has a medical condition which could not be corrected by using any type of spectacle lenses and it required surgery. Her eyes were operated upon and she could then see once again properly. What happens to the eye lens during this defect? What is done during surgical operation of the eyes to restore the correct vision ?

Name the defect of vision which can be corrected by a diverging lens. Show clearly by a ray diagram how the lens corrects the defect.

A person cannot see objects further than 10 metres from the eye clearly. Name the defect of vision he is suffering from. How can it be corrected ? Draw a diagram for (i) defect of vision and also (ii) for its correction.