To choose a monitor that will help you avoid these problems, you need to know what kind of monitor is best for your needs. In particular you need to consider resolution, clarity, and flicker. Depending on what you use the computer for, some other features may also be important. Resolution is only one part of clarity in a computer monitor. Clarity also suffers if images are distorted on the screen.
Distortion usually happens because of the way the screen is made.
Besides wanting high resolution and freedom from distortion, you should also want a monitor that is free from flicker. Once again, though, you are faced with making tradeoffs. The right features also let you stay healthy. High resolution, good clarity, and lack of flicker all avoid eye problems, neck and back pain, and general fatigue. Absence of distortion will give you a true image of what your work really looks like, and a larger size, even though more expensive, will let you see from a distance, so you can move around your office and glance at the monitor when you need to.