But one major problem the researchers had to overcome was the fact that the human eye, with its minimum focal distance of several centimeters, cannot resolve objects on a contact lens.
The researchers first tested the lens to the eye of a rabbit, under the strict guidelines for animal use in the laboratory, to evaluate the effect of wearing the contact lens on the cornea and the body in general.
A fluorescent dye was added to the eye of the rabbit to test for any abrasion or thermal burning.
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