Adjustable Focus Glasses

How to Use:
1. Before putting on the glasses, notice that there are dials on the side of each lens. This is important to note as adjustments will be done through that dial / small knob.
2. Wear glasses as normal.
3. To start adjusting the lens grade, cover one eye then adjust the dial on the opposite side (the eye with visibility) E.g. Cover left the eye, adjust right lens dial. The cover right eye, and adjust the left lens dial.
4. Do adjustments on both lenses one at a time.
5. If vision is still slightly blurry, you can repeat step 3 as necessary.

Features：
1. Our glasses only weigh is light. You can wear them for hours and forget you have them on.
2. Anti-wear, anti-drop, lens light, HD, optimized thickness design, light weight, ultra-thin, sturdy, scratch-resistant, waterproof and oil-proof, providing you with more reliable safety protection.

After the age of 40, presbyopia, commonly known as presbyopia, begins to appear. If you do not wear glasses in time after the appearance of presbyopia, the eye's regulating muscles will be fatigued, causing headaches, eye swelling, and lack of energy. After wearing reading glasses, these discomforts can be eliminated.

In general, the degree of presbyopia is directly proportional to age. About 40 years old, presbyopia is about 50 degrees; about 50 years old is about 200 degrees; 55 years old is about 300 degrees; over 60 years old is about 350 to 400 degrees.

After the elderly wear glasses, in order to reduce the burden on the eyes, they should pay attention to the following points of eye hygiene:

1. The working time with the eyes should not be too long at a time, generally 2 hours, and close-up work should not exceed 6 hours a day.

2. Avoid reading materials that are too small, scribbled or unclear.

3. The intensity of lighting should be appropriate. If the light is too strong or too weak, it will damage the vision of the eyes. It is better to use natural light and soft light on sunny days.

4. Do not read books or newspapers after meals or when you are tired.

5. Replace glasses with appropriate prescription in time.

6. Regularly do eye exercises to eliminate eye fatigue.

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