A more efficient method of texture use in surgical robot simulation.

Texture mapping is a crucial supplement to modeling in 3D graphic simulation technology. Relatively small objects in a simulation environment can be represented with textures rather than by modeling, which helps economize on precious data storage space. Textures also lend some surfaces a more realistic appearance, both for the user and the viewer.

Accommodation deficiency in healthy young individuals.

Ten patients, ages 10 to 19, with accommodation insufficiency are reported. All patients were in good health and asymptomatic, except for asthenopia during near visual activities. Each patient's amplitude of accommodation was measured and found to be considerably below the minimal normal for their respective ages (an average of 6 diopters).