The table below lists fully habitable buildings, not observation towers. For statistics on CN Tower and other very tall structures, see our directory of TV, Radio & Observation Towers.
A detailed examination of the eye can reveal conditions such as high blood pressure or diabetes. Optometrists make a health assessment, offer clinical advice and when necessary prescribe spectacles or contact lenses. In addition, optometrists can dispense, fit and supply spectacles or contact lenses. They also supervise trainee optometrists and dispensing opticians, and medical students.
1 Adults (age 21 and older): Medically necessary eye examinations, eyeglasses and contact lenses ONLY following eye surgery (do not require prior authorization, and surgery may have been performed at any time during the patientâs life). Contact lens supplies and contact lens insurance are not benefits. 2  Extra options added on to standard frames and lenses can be purchased at cost to the client, but the provider must obtain written agreement from the client to pay for non-covered costs. 3  Providers may not bill clients for separate charges for services.