Question: Opticians fit people who have poor eyesight with glasses or contact lenses, prescribed by an optometrist. Beginning in the 1990s, technological developments in laser eye surgery made surgery an increasingly popular way of correcting bad eyesight. What effect do you think this development had on the market for opticians? Draw a graph, carefully showing whether the shift is in demand or supply and showing the resulting predicted changes in the quantity of labor demanded and in the wage.