Some information for eye health while using smartphone:- Sleep for about 8 hours daily. Always keep the dark theme on the smartphone. This can control the white light emitted from the smartphone. Which, due to the short distance, falls directly on the retina of the eyes. After 6 pm, dim the display light on your smartphone completely and turn on Eye Care (Night Shield). (Note:- By looking at a virtual reality device very close to the eyes every day, you can lose your eyesight.) It is good to read books and e-books. Reading helps in getting good sleep. Thinking ability,