Supplied Computers, laptops and portable displays have become an integral part of work, study and entertainment in the 21st century. We use them for several hours a day and even connect external gaming monitors to our laptops for more performance or screen real estate. But is it safe to look down at a laptop or portable monitor every day? Does the extra screen cause any eye damage? The short answer is yes, spending long hours at your workstation in the wrong posture with poor screen settings is not good for your eyes or general health.