Method Of Exam
Author: A. Chandrasekhar, MD
Position yourself in front of the patient.
The nose normally cuts off the medial field of vision.
Hence, compare the patient's right eye to your left eye and vice versa.
Instruct the patient to look straight at you and not to move their eyes.
Compare your field of vision with the subject's.
Bring your finger from the
of vision until it is recognized.
Test one quadrant at a time.
Wiggle your fingers to see whether the patient can recognize the movement.
Some like to have the patient count fingers, i.e., 1, 2 or 5.
Test all four quadrants in a similar fashion.
When abnormality is detected , would require automated methods of testing in the lab
Assuming the examiner has normal field of vision, patient should have the same extent of field of vision.