Fitting contact lenses requires considerable skill, care, and patience. Dispensing opticians observe customers' eyes, corneas, lids, and contact lenses with special instruments and microscopes. During several visits, opticians show customers how to insert, remove, and care for their contacts, and ensure the fit is correct. Dispensing opticians work indoors in attractive, well lighted, and well ventilated surroundings. They may work in medical offices or small stores where customers are served one at a time, or in large stores where several dispensing opticians serve a number of customers at once.
Opticians spend a lot of time with customers, most of it on their feet.
If they also prepare lenses, they need to take precautions against the hazards associated with glass cutting, chemicals, and machinery. Most dispensing opticians work a 40-hour week, although some work longer hours. Those in retail stores may work evenings and weekends. Some work part time. Employment Dispensing opticians held about 63,000 jobs in 1994.