So I was watching this video on YouTube about someone who was trying to improve their myopia using the controversial Jake Steiner End Myopia Reduced lens method (yes, I knooooooooow a lot of you on here don’t believe in it) ;)
And during the video, they showed a snellen chart at 20 feet away, which they had been using test and monitor their eyesight. I made sure video quality was at 1080p (the highest option), zoomed to full screen (I was watching on an iPad with 4:3 screen ratio) and took a screenshot. I noticed that the cameras vision was only good enough to make out the 20/40 P E C F D line but nothing below that, so the camera used to record the video had 20/40 vision. Of course, cameras are not as good as human eyes, especially when recording video, as the standard resolution is 1920x1080, whereas photo quality is usually much higher. But there might be some high res cameras out there that can see 20/20, I don’t know. I recently read that the resolution of the human eye is around 8K, so 1080p is quite a lot lower than that.
Nevertheless, I thought this was a good representation of what 20/40 vision looks like. Not blurry, but not the ultra sharp, ultra detailed, 20/20 vision I get when I put my glasses on. Good enough to drive and do most things, but not as good as normal human vision. More like camera vision. :p
I then went into the Picsart app on my iPad, and added a little blur to the image, until the 20/40 line was no longer legible, but the 20/50 line was still just about legible. Then I saved the image, then continued to add blur to simulate lower visual acuities.
Just thought this would be a fun and interesting project to do, to see what different visual acuities look like. It might also be interesting for others to see (especially those with good eyesight) what myopia (at the mild end) and low visual acuity looks like.
It would be good if the quality of YouTube videos would improve beyond 1080p so it would be the equivalent of 20/20 vision. I remember when HD video first came out on YouTube and thinking about how sharp and clear it was, now it just looks a bit “meh” to be honest.