Fig. 3.

Result of ZEMAX SC illustrating the corneal window (CW) in the reduced schematic rat eye (rSRE). Half-ray bundles are shown for a 0.5 mm pupil (P) (above) and a 1 mm pupil (below), with the rays originating at field points 0° (optical axis) and ± 15°. The 30° field-of-view (FOV) corresponds to 2.8168 mm field height normal to the optical axis. Two rays are plotted for each pupil size: the maximum extent ray (solid line) and the center line (chain line). The 0.50 mm pupil requires a 1.14 mm CW (above), whereas the 1.0 mm pupil requires a 1.68 mm CW (below). P and CW are diameter values.