For people with small astigmatism, not adding astigmatism to the prescription will not have a significant impact, while for people with large astigmatism, not adding astigmatism to the prescription may affect the result of vision correction.
1. Smaller astigmatism: Generally, when the astigmatism is small, below 100 degrees, the prescription of glasses without adding astigmatism will not have a significant impact on the correction of vision, and will not cause significant discomfort.
2. Large astigmatism: For people with large astigmatism, such as astigmatism higher than 100 degrees, if astigmatism is not added to the prescription, in the process of vision correction, blurring of vision will still occur due to astigmatism, which will affect the results of vision correction. Some patients may even experience discomfort such as visual fatigue.
It is recommended to choose the appropriate way under the guidance of the doctor during the lens fitting process in order to achieve better results.