###Rationale: Hirschberg test (for Tropias or manifest squint) Flash a torch at the forehead (Glabella) of patient, ask the patient to look at the light Ohophoric- Reflection of light is exactly at the center of the pupil Heterophoric- Reflection of light is not at the center of the pupil

###Answer: OPTION B IS CORRECT.
###Question: Hirschberg test measures:
###Options:
A. Cataract
B. Strabismus
C. Refractive error
D. Glaucoma
