Myopia Control Defocus Glasses | Generated by AI
Question: What are “离焦眼镜” (defocus glasses)?
Answer:
“离焦眼镜” usually refers to defocus glasses, a type of optical lens used mainly for myopia (nearsightedness) control, especially in children and young adults.
What it means in simple terms
Normal glasses correct vision by focusing light directly on the retina so you see clearly.
Defocus glasses are designed differently: They correct the central vision (so you can still see clearly), but they intentionally create a slight myopic defocus in the peripheral vision of the retina.
Why they are used
The idea comes from eye-growth research:
- When the peripheral retina receives “myopic defocus” signals
- It may slow down axial eye elongation
- This can help slow the progression of myopia
Common types / related products
- Defocus spectacle lenses (e.g., DIMS technology, HAL lenses)
- Myopia control lenses like “defocus incorporated multiple segments”
- Similar concept: orthokeratology (night lenses), but that is contact lens-based
Important note
They are not a cure for myopia, only a method to slow progression. Effectiveness varies depending on:
- age
- degree of myopia
- daily wearing time
- eye behavior (near work, screen time, outdoor time)
If you want, you can tell me the exact brand or lens you are using—I can help you analyze how strong the myopia-control effect is and what results are realistic.