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.
The drops can either stimulate the iris muscle that opens the pupil or prevent the muscle from closing the pupil. By dilating the pupil, your doctor can check the optic nerve, the macula and the blood vessels for signs of disease or cataract. Doctors also use pupil dilation to diagnose diabetes, eye tumors, high blood pressure, macular degeneration and glaucoma, as well as tears or holes that might lead to retinal detachment.