Advertisements
Advertisements
Question
Explain the Term: Cataract
Advertisements
Solution
Cataract: It is a condition in which the lens turns opaque and the vision is cut down even to total blindness. It can be corrected by surgically removing the lens and by using spectacles with highly convex lense.
APPEARS IN
RELATED QUESTIONS
The kind of lens required to correct Myopia
What is the other name for
myopia
Name an old age eye defect. What happens in it?
What is Hypermetropia (far sightedness)?
List two causes of presbyopia. Draw labelled diagram of a lens used for the correction of this defect of vision.
Name the following:
The photosensitive pigment present in the rod cells of the retina.
In what two whys is a yellow spot different from the blind spot?
Give Technical Term:
The type of lens used to correct myopia is
Complete the following sentence with appropriate word :
An inability to focus on nearby objects due to loss of elasticity of the lens with age is called Iris.
Given below is a diagram showing a defect of vision. Name the defect of vision and draw an accurately labelled diagram to correct this defect.
