The axial position of astigmatism cannot usually be measured by oneself, but requires an optometric examination at the hospital to clarify the patient’s axial position of astigmatism.
The axial position of patients with astigmatism is usually measured in the clinic by means of computerized optometry or manual optometry. Due to the different refractive power of the cornea at different meridians, parallel light rays refracted by the cornea will form different focal points, and this refractive state is called astigmatism. The axial position of astigmatism is usually the meridian position where the highest refractive power of astigmatism is located, and it is not possible to obtain the patient’s axial position of astigmatism by self-measurement.
Measurement of astigmatism axis is commonly done by computerized optometry or manual optometry, where the degree of astigmatism and the axis of astigmatism are clearly labeled on the optometric strip, while the axis of astigmatism can also be obtained through shadow checking or manual insertion of films.
In addition to astigmatism axial position, patients usually need to check visual acuity, corneal curvature, corneal topography, etc., in order to clarify the refractive status of the patient.
Patients with astigmatism are advised to seek timely medical attention to evaluate their condition and follow the doctor’s instructions for treatment.