It's said that only about 30% of people in their 40s and 50s, who are starting to become aware of presbyopia, own bifocal glasses.

Although the purchase rate in the eyewear industry is increasing, many people still don't use bifocals.

The most common reasons we hear are that they are "difficult to wear," "distort," and "don't fit into daily life."

So why are they difficult to wear? Why do they distort? Why are they inconvenient to use?

This time, we'll focus on three particularly important points among the many contributing factors and explain the causes and solutions!

[Chapters]
0:00 Opening
2:00 Chapter 1: Presbyopia prescription is too strong
5:51 Chapter 2: Prescription changes too quickly
9:41 Chapter 3: Lens design is unsuitable
12:29 Summary

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