I believe many computer repair technicians have ideas about what the geek squad charge for computer repair services or are unsure. I created this simple table which shows what services they do, and charge for. Everything is taken directly from their website.
Iris (anatomy) The iris (plural: irides or irises) is a thin, circular structure in the eye, responsible for controlling the diameter and size of the pupil and thus the amount of light reaching the retina. Eye color is defined by that of the iris. In optical terms, the pupil is the eye's aperture, while the iris is the diaphragm.
It is likely that they used a stronger drop for the dilation than what is used in a normal eye exam. Dilation drops also serve to keep the iris (colored tissue of the eye) from dilating and contracting as illumination varies). After any form of trauma to the eye movement of the iris can causes pain.