Abstract: when the astigmatism of the eye with corrective glasses or without glasses is uniform in thickness, it is confirmed that the astigmatism of the tested eye has been fully corrected or that there is no astigmatism. When a line in the astigmatism table is found to be black and clear, it indicates that astigmatism is possible., ● the picture seen by myopic patients is a woman with glasses, ears and short hair, ● the picture seen by non myopic patients is only vertical bars, and shadows can be seen if they have good eyesight, ● when the astigmatism of the tested eye has been fully corrected or there is no astigmatism when the astigmatism meter has uniform thickness in all directions with or without glasses., ● when the inspected eye finds a line in the astigmatism meter black and clear, it indicates that astigmatism is possible., ● please keep a distance of 1.5m for monocular test., ● the visual acuity record value of the smallest line sight mark that can be recognized is the visual acuity test value of your tested eye., ● the number of correct sight marks shall be more than half of the total number of the line., ● most of the red green blind and red green weak can read 5, but most of the panchromatic weak and normal can’t read it.,
● the picture seen by myopic patients is a woman with glasses, and the woman with ears and short hair
● non myopic patients only see vertical bars, and the shadow
can also be seen by those with good eyesight● when the lines of astigmatism meter are uniform in all directions with or without corrective glasses, Confirm that the astigmatism of the tested eye has been fully corrected or that there is no astigmatism.
● when a line in the astigmatism table is black and clear, it indicates that astigmatism is possible.
● please keep a distance of 1.5m for monocular test.
● the visual acuity record value of the smallest line of sight that can be recognized, that is, the visual acuity test value of your tested eye.
● the number of correct sight marks shall be more than half of the total number of this line.
● most of the red-green blind and red-green weak can read 5, but most of the panchromatic weak and normal can’t read it.
● red green blind and red green weak are easy to find, but most normal and panchromatic weak can’t find.