Our eyes are not designed to focus on digital devices that are 1 to 3 feet away for extended periods of time. The most common reported symptoms of too much screen time include: Eyes feel tired, sore, uncomfortable and/or hurt, have headaches, feel sleepy, lose concentration and/or have trouble remembering what was read. If it is possible, reduce your screen time and apply the 20-20-20 rule: take a break every 20 minutes and look 20 feet away for 20 seconds. If you or a family member have any of these signs, schedule an appointment with a Developmental Optometrist.