How to read the results of eye test results?

Most cases of refractive errors can improve vision by wearing glasses. Refractive measurement sheet is a basis for doctors to cut glasses for patients. Therefore, to understand the results of the results, you can choose a suitable pair of glasses. There are 3 types of glasses commonly used: concave glass, convex and astigmatism.

Myopia eyes must wear concave eyeglasses, indicated by a "-" sign, presbyopia eyes must wear convex glasses, indicated by a "+" sign. Glasses are used for cases of nearsightedness and farsightedness called normal glasses, symbolized by DS , while glasses are used for astigmatism patients who are astigmatism glasses, which are symbolized by DC letters. Astigmatism is also classified into astigmatism and astigmatism of astigmatism is also different from near-sighted eyes, so it is also marked with an "x" sign before the numerical azure to mark which direction is astigmatism, call is astigmatism.

You must understand the results of the results so that you can choose a suitable pair of glasses.

The glass also has a small magnitude that indicates the patient's different refractive index, those numbers are written immediately after the "+ " sign or the doctor often writes the refractive index of the right eye first and uses the word "Right" or "OD", "R" to sign; The left eye uses "Left" or "OS", "L" to sign.

Now you can understand the results on the coupon:

For example:

1. Note 1: OD: - 3.75DS = 10/10, meaning that the right eye is 3.75 degrees, vision after adjusting is 10/10.
2. Votes 2: OS: + 2.50DS = 10/10, meaning that the eyes of the far-sighted eye are 2.5 degrees, the vision after being adjusted is 10/10.
3. Note 3: L: - 3.00DS - 0.50 DC X 180 ° = 10/10, which means that the left eye is 3 degrees of myopia and also has an astigmatism of 0.5 degrees, astigmatism axis is 180 °, the following vision when the adjustment is 10/10.
4. Note 4: R: + 2.00DS + 0.75DC X 90 ° = 10/10, meaning that the right eye has 2 degrees of vision, while the vision is 0.75 degrees, the astigmatism axis is 90 °, the following vision when the adjustment is 10/10.