Why do shopkeepers always advise not to correct their eyesight to 1.5 when matching glasses in an optical shop?

When wearing glasses, you should follow the principles of best vision and maximum positive optical power. Myopia refers to people who can achieve the best vision of 1.0.

Correcting the minimum myopia directly to 1.5 will destroy the accommodation function of eyes, break the coordination between accommodation function and collection function, cause visual fatigue, and even deepen myopia.

Therefore, when matching glasses in an optical shop, the owner always advises not to correct the vision to 1.5. This is correct professional advice, and we should listen and accept it humbly.