Eye patches can not restore vision, the role of eye patches is to relieve eye fatigue and care for the skin around the eyes, for the lens deformation caused by vision loss, is unable to restore. Vision loss is caused by long-term proximal vision, resulting in deformation of the lens of the eye. When light passes through the deformed lens, it does not fall properly on the retina to form a clear image, and this change is most fundamentally a lesion of the lens. And even if the eye patch has a drug effect, its effect is unable to enter the lens of the eye through multiple barriers such as skin, muscle and bone, so there is no talk of restoring the elasticity of the lens and restoring vision. But there is some scientific reason why eye patches can relieve vision fatigue. Through the drug and heat effect of eye patches, to a certain extent to relieve long-term viewing of electronic screens caused by vision fatigue, vision fatigue will also cause blurred vision, this blur can be achieved through eye patches for a short period of time to relieve. But this relief effect, by closing the eyes to do eye exercises, massage the skin around the eyes with your hands, can achieve the same effect. Therefore, the eye patch is not effective in restoring the vision of true myopia caused by lens deformation, but it has a certain effect in relieving the blurred vision caused by visual fatigue, but the duration of this effect is also relatively short.