Which examination is of least value in open

Which examination is of least value in open

angle glaucoma?

a. Tonometry

b. Perimetry

c. Indirect ophthalmoscopy

d. Direct ophthalmoscopy

Can someone explain

Indirect is the answer ??

What is the correct answer ?

Yes it’s the answer.

Can you explain me?

Disc par focus rakhta hai direct ophthalmoscopy …better magnification ke saath…so direct > indirect

Indirect ophthalmoscopy is least value bcoz we only visualised to optic nerve damage in glaucoma means we visible only optic disc easily by direct ophthalmoscopy with greater magnification