0 a basic type of eye consisting of a group of cells that are sensitive to light, or having only one lens, as found in some insects -- （昆蟲的）單眼
A very simple eye-focus induction is usually the method of initiating the procedure.
I certainly think that the question of a simple eye-test should be looked into quickly.
An additional simple eye is positioned at the rear of each of these structures.
Some insect larvae, like caterpillars, have a different type of simple eye (stemmata) which gives a rough image.
Depending on the position of the tumors, they may be visible during a simple eye exam using an ophthalmoscope to look through the pupil.
The tegmina are translucent in all colorations, and the ocelli (simple eye spots) are a yellowish tan.
A further simple eye is located beneath these, on the underside of the carapace.
The resulting eye is a mixture of a simple eye within a compound eye.
