Do an experiment. Wear glasses for a couple of weeks, at least a couple of hours, not only at the computer, and you will see the difference. The eyes will feel better and the defocusing in the eyes will go away.
I added some photos to give a more well-rounded perspective of my experience.
Anti-Eye Strain Headache Blue Light Blocking Glasses 3-Pack by MEETSUN with UV400 Lens for Better Sleep and Computer Reading
11 Review
MIGSIR 3 Pack Blue Light Blocking Glasses for Computer Gaming Eye Strain, Round Fashion Faux Eyeglasses Frames for Women Men with Enhanced SEO
13 Review
GUNNAR Optiks Gaming Glasses: Blue Light Blocking, Screen Protection, Anti-Reflective Elipse
11 Review
EyeGuard Blue Light Filter Clip-on Computer Gaming Glasses: Strain Relief, Anti-glare, Radiation Protection Eyewear
11 Review
Logitech HD Webcam C270: Crisp 720p Widescreen Video Calling & Recording (960-000694), Lightweight and Portable at 3.15 lb.
192 Review
🎥 Logitech C270 Webcam: Crystal Clear Video and Superior Quality
183 Review
Renewed Logitech G PRO X Wireless Lightspeed Gaming Headset with Blue VO!CE Mic Filter for Immersive Gaming Experience
122 Review
Smartphone Samsung Galaxy A50 4/64 GB, 2 SIM, black
82 Review