1. During optometry, place the subject's forehead firmly against the forehead support and adjust the lens to be about 12mm away from the subject's eye.
2. Instruct the tested eye to focus on the visual acuity chart or pattern inside the machine. When the gaze mark is completely clear, the computer will automatically focus and measure.
3. During the detection process of the computer optometry machine, it will perform fog vision and adjust the balance function.
4. At the end of optometry, the display screen will display the optometry results and print out the optometry results (prescription) such as spherical, cylindrical, and axial.
5. Based on the printed prescription, further adaptation of the test piece is carried out, and fine adjustments are made until satisfactory correction is achieved. At this point, a prescription for prescription glasses is issued