The large eye mask has a jack that can be used to fixed on the glasses legs for easy adjustment of the size of the eye shield. This eye mask is suitable for correcting amblyopia, correcting astigmatism, correcting strabismus, covering training, and covering after surgery. These soft eye patches fit for one eye care and shield, without excitant, avoid causing skin irritation, especially good for amblyopia strabismus. Silk eye patch is soft and comfortable. Used for doing eye patch Correction Amblyopia Strabismus Postoperative therapy, training the lazy eye to work properly so that vision can develop correctly. It can be used to correct amblyopia and strabismus, as well as to train false myopia. Soft silk material that won't scratch your glasses. Easy to assembly and disassembly.