【When using your smartphone】Many people use their smartphones for long periods, often straining their eyes. In such cases, please try Cata-MEDICA's medical pinhole glasses. 【Training and Rest】The medical pinhole glasses can be used in two ways: the "Diamond Exercise," which involves looking through the pinholes after wearing the glasses, and "Ciliary Muscle Relaxation," which allows the focusing function to rest naturally while wearing the glasses. 【Aiming for Vision Care】The Diamond Exercise is a training method that involves moving your eyes up, down, left, right, clockwise, and counterclockwise while looking through the pinholes. This movement helps to loosen the visual muscles. 【Just Wearing is Okay】Even without moving your eyes like in the Diamond Exercise, simply wearing the medical pinhole glasses will relax the ciliary muscles. It is also recommended to use them "while" reading a book or watching TV. 【Precautions】Wearing medical pinhole glasses narrows your field of vision. Therefore, while it's fine to read books or watch TV, activities like driving a car or cooking with sharp knives are dangerous and should be strictly avoided. Always read the instruction manual before use. Only glasses and the instruction manual are included. Thank you for viewing (❁ᴗ͈ˬᴗ͈)❤️ #ChachiSmartphoneAccessories ⋆┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈⋆ ※Colors may differ slightly between the actual product and the photos. ※Please understand that the item is stored at home. ※There may be some scratches or stains. Cata-MEDICA Medical Pinhole Glasses Vision Eye Training Eye Muscle Exercise Smartphone Computer After using your eyes Instruction manual included Eye Strain Goods Eye Care Present Office Work Desk Work Respect for the Aged Day Father's Day Mother's Day Birthday Gift 33-37