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 While the majority of states currently allow optometrists to. 2  prescribe oral steroids, Massachusetts is one of several states that do not. 3  Prescribe oral medications. 4  Massachusetts and New York are the only two states in which optometrists cannot prescribe oral medications to treat any condition.