Why doesn't the James Webb Space Telescope have any cameras onboard?

James Webb Space Telescope deploys radiator to keep cool

Air Force's Small Telescope Tech Will Help Detect Enemy Satellites Sneaking Up On Friendly Ones. The previously classified Starfire Optical Range aids astronomers while enabling the Space Force to better detect and track small objects in space.

Living in outer space: Changes in blood flow volume may be at the heart of worsening eyesight