Can a flat computer screen contribute to my lower eye lash muscle strain? i have been having this issue for the last 3 years since i started using a flat screen at work.

Eye: Use of computer screen either flat or otherwise can lead to Computer Vision Syndrome. Symptoms include the following: blurred vision, double vision, dry or red eyes, eye irritation, headaches, neck or back pain. If you are having specific eye problems a visit with optometrist can help. https://www.aoa.org/patients-and-public/caring-for-your-vision/protecting-your-vision/computer-vision-syndrome