The English name for presbyopic glasses is reading glasses, which literally means "reading glasses". Many people reach a certain age and don't know when they started feeling that the text on the newspaper has become blurry, making it difficult to see the phone number on the business card handed over by others. At such moments, what is needed is "proximity short-focus lenses".

The lenses installed in ready-made glasses are generally of the same degree to the left and right. If there is a difference in vision between the left and right eyes and there is confusion, it is better to wear matching lenses so that they feel comfortable to wear. As long as you cover one eye and observe, you can feel if you have this situation.

What is the difference between reading glasses and magnifying glasses? A magnifying glass is a tool used to magnify small things. The function of presbyopic glasses is to assist vision by coordinating with the focus of the eye, and cannot be magnified. People who need to wear reading glasses can only see the part of the magnifying glass clearly if they only use a magnifying glass.

What is the major difference between cheap lenses and expensive lenses? To summarize in one sentence, the way things are viewed is different. Expensive lenses are generally relatively thin in thickness and have a wider field of view. At the same time, the distortion of things seen through lenses will also be lower, allowing for a clearer view. You can personally experience the difference between lenses at different prices by going to an eyewear store to try them on. Many people are no longer accustomed to wearing cheaper lenses after wearing more expensive ones.