You doze off at your computer
The muscles in your eyes work hardest when you focus on close-up or detailed work, like when you’re reading or working on the computer. If you need glasses, those muscles work even harder to help you see clearly. Because that isn’t a natural position for the eyes, they can get tired, which makes you feel sleepy. If reading glasses alone don’t help, try blinking more often or pushing your computer farther away from you. This will keep your eyes more relaxed. This is what you need to know before buying glasses online.
You need brighter light to read
Your normal reading lamp doesn’t seem bright enough, so you turn on another lamp, and then maybe even an overhead light. If you never seem to have enough light, regardless of the room or type of lighting, it could be one of the signs you need glasses. This becomes more prevalent as you age, but don’t worry—it’s a normal condition. Studies show that the average 60-year-old needs at least three times the amount of light as a 20-year-old.