In the normal human right eye, the peripheral field of vision is usually least:
On the left side (nasally)
In the downward direction
In the upward direction
On the right side (temporally)
The field of vision is 50 degree superiorly, 60 degree nasally, 70 degree inferiorly and 90 degree temporally. Ref: Textbook of Ophthalmology By Nema, 3rd Edition, Page 73; Comprehensive Ophthalmology By AK Khurana, 2nd Edition, Page 37