Private Medical Insurance and Cataract Surgery Costs. The extra cost of a premium IOL typically is not covered, so you must pay the added cost of the lens out-of-pocket. Again, the same applies to laser cataract surgery; the additional cost is not covered by insurance. Also, co-payments and deductibles often are required.
People started experimenting with color photography in the 1840s. Within about 10 years, Levi Hill had worked out a complicated process, with other, more successful processes following. A big shift occurred in 1935, when Kodak brought out Kodachrome, initially as a 16mm color film for home movies (slide film followed). The following year, Agfa brought out Agfacolor Neu, which improved on Kodachrome with a dye coupler technique. Color film and processing were expensive, though, so it took another couple of decades of development to make color photography common at the consumer end of the market.
All were expensive and until the 1930s none was fast enough for hand-held snapshot-taking, so they mostly served a niche market of affluent advanced amateurs. A new era in color photography began with the introduction of Kodachrome film, available for 16 mm home movies in 1935 and 35 mm slides in 1936.