Uplighting virtually eliminates problems with glare. Furthermore, uplighting can provide more even light levels which are more comfortable for employees. Finally, the productivity payoff includes increased facility flexibility, since the position of workstations is no longer tied to the position of lighting fixtures. In some cases, the relationship between better lighting and improved productivity is easily explained. For example, when Hyde Tool Company replaced an old flourescent system with new high-pressure sodium and metal halide lamps, workers found that they had an easier time seeing defects.
Common sense says that it is impossible to separate lighting from other facility design issues.
The issue of glare is a good example. Dr. Emil Pascarelli, a professor of clinical medicine at Columbia Presbyterian Medical Center in New York City, that the employee's work habits, genetic make-up and overall physical condition can all contribute to office injuries. Golf is the example he picks. A golfer has to learn proper technique and stay in good shape. The same is true of the office setting.