Moremerry Children's Eye Mask, Single-Eye Vision Training Device for Strabismus Correction, Amblyopia Light-Blocking Monocular Blindfold, Astronaut Desig

1. The eye mask is designed to cover the left or right eye separately. Choose the eye mask for the opposite eye of the weak eye for training and improvement.

2. Measure the height of your own glasses frame before purchasing. The eye mask is suitable for glasses frames with a height less than 4cm.

3. Recommended to use with glasses frames if the heights are not compatible.

The above information is sourced from Baidu.