- Black Eyesight Improvement Vision Care Exercise Eyewear Pinhole Glasses
- Theory is very simple: when the eyes can only look through the small holes, they naturally change focus to a relaxing standard, so that the eyeballs are relieved from the previous nervous focus.
- Wearing for 15 minutes one day will help to improve your eyesight within 2-4 weeks.
- Contents: 1 x Pinhole Glasses
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