Typically, the patient sits behind the phoropter, and looks through it at an eye chart placed at optical infinity (20 feet or 6 meters), then at near (16 inches or 40 centimeters) for individuals needing reading glasses.
The patient sits behind the phoropter at near (16 inches) for individuals. This is typically. This is then. The patient sits behind the phoropter at near (40 centimeters) for individuals. This is typically. This is then. These individuals are needing reading glasses. The patient looks through it at an eye chart at near (16 inches) for individuals. This is typically. This is then. The patient looks through it at an eye chart at near (40 centimeters) for individuals. This is typically. This is then. These individuals are needing reading glasses. This eye chart is placed at optical infinity (20 feet). This eye chart is placed at optical infinity (6 meters).