The Normal Field of Binocular Vision as Tested on the Goldmann Perimeter

Abstract

The binocular fields of fifteen healthy adult volunteers (13 caucasian and 2 noncaucasian) were plotted by measuring the monocular boundaries of vision for both eyes. By using two different eye positions for plotting the monocular boundaries, the resultant binocular fields were compared.

Plotting the monocular boundaries of vision with the crosshairs centered between the eyes as opposed to the pupil, results in an 11 degree smaller field of binocular vision along the horizontal axis. Since the Goldmann perimeter was designed for uniocular measurements, the Goldmann perimeter must be modified to account for the interpupillary distance when plotting the field of binocular vision. The chin and head rest must be moved back 1.8cm on average in order to plot the field of binocular vision accurately in terms of degrees. A new binocular field template was established according to the modified protocol.

• binocular visual field
• Goldmann perimeter
• diplopia