Many “silent” diseases, such as glaucoma and diabetes, can only be detected through regular eye exams. When these conditions are discovered earlier rather than later, they become easier to treat or manage, allowing for better long-term preservation of eyesight. In addition, reading glasses from the drugstore often do not work well because most people have astigmatism and/or different prescriptions in each eye. As a result, many of these individuals experience persistent eye fatigue and headaches. Forgoing the eye exam also sacrifices the opportunity to screen for treatable diseases, as mentioned above.