Eye exam (eyeglasses only) - $60. Contact Lens eye exam - $90 (includes eyeglass exam) Pupil dilation and visual fields costs extra. The eye exam costs are more likely to vary from store to store as the optometrist is not directly employed by Costco.
Colorado, as many other states, has determined the age of majority to be 18 years of age or older. Individuals are treated as adults at the age of 18, with some exceptions, such as drinking alcoholic beverages (12-47-901), renting cars, and purchasing a hotel room. When an individual reaches the age of majority his or her parents are no longer liable for their child's actions.
For most purposes, you become an adult when you turn 18, an age established by The Age of Majority Act. However, other ages can be important depending on what legal issues are involved. For example, under Michigan law a person is considered an adult for purposes of the criminal law at age 17. So if a 17 year old is accused of a crime, he/she will be tried as an adult in either district or circuit court rather than in family court. Similarly,Michigan's Constitution establishes the legal drinking age as 21. Also, if you are emancipated, then you are legally an adult.