Sentence examples for horizontal pupils from inspiring English sources

After analyzing the pupils of more than 200 land species including canines, felines, reptiles, and ungulates, the scientists found that short ambush predators such as alligators and foxes are more likely to have vertical pupils, whereas prey species like gazelles or sheep are more likely to have horizontal pupils.

[The goats] have horizontal pupils.

Horizontal pupil diameter was measured with a ruler in millimeters 40 minutes later.

When one of these specimens which I wanted to photograph was coaxed into the open it became very angry, hissing, and striking the air each time the shutter clicked; I was trying to obtain a view of the vertical, rather than horizontal, pupil which is one of their distinguishing characteristics, but it was anxious to retreat to the privacy of the undergrowth.

First, the horizontal pupil movement signal was extracted from the infrared video data using a pupil extraction method.

Horizontal pupil diameters were recorded on a millimetre scale immediately prior to surgery.

The examiner was instructed to estimate the size of the horizontal pupil diameter to within 0.25 mm.

Upon arrival in the anaesthetic room, all patients had measurement of horizontal pupil diameter with a pair of callipers to within half a millimetre by a masked observer (who was the doctor administering the local anaesthetic).

The common toad (Bufo bufo) has golden irises and horizontal slit-like pupils, the red-eyed tree frog (Agalychnis callidryas) has vertical slit pupils, the poison dart frog has dark irises, the fire-bellied toad (Bombina spp).

The bulbous, protruding eyes have yellow or copper coloured irises and horizontal slit-shaped pupils.

The eyes are prominent with brown irises and horizontal almond-shaped pupils.