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.
Interprets eyeglass or contact lens prescriptions written by ophthalmologists or optometrists. Measures a customer's face and eyes to ensure proper fit of eyeglasses or contact lenses. Assists customers in selecting frames based on their prescription and life style. Instructs the customer with eyeglass and contact lens care and use. Ensures finished lenses are ground to specifications and checks that eyewear fits properly. May require an associate's degree, 2-4 years of related experience, and must be a licensed optician.