For any given substance, the heat capacity of a body is directly proportional to the amount of substance it contains (measured in terms of mass or moles or volume). Doubling the amount of substance in a body doubles its heat capacity, etc.
Conventional soft contacts can last up to a year; conventional rigid gas permeable (RGP) contact lenses can last even longer. Frequent or planned replacement contact lenses last one to several months. Disposable contacts last from one day (daily wear) to up to two weeks (extended wear).
If you were seen at Student Life Student Health Services (SLSHS) in the past and had a contact lens evaluation, your prescription is on file and you may be able to order more lenses. In most states, including Ohio, contact lens prescriptions are valid for a one year supply. If you call before 4:30 p.m., most contact lens orders can be placed that day as long as the prescription is still valid. The cost of glasses/contact lenses is variable and is dependent on your prescription. You may fax your prescriptions to SLSHS Optometry Services at (614) 247-8288 or call for more information at (614) 292-1683. Why can't I use my eyeglass prescription to order contact lenses?