Some experts will tell you that the human eye can see between 30 and 60 frames per second. Some maintain that the human eye may be able to see much more than that although more research is needed.

Figure 4 shows the eye diagram of a pseudo-random bit pattern after a 40-in FR4 trace. In addition, reflections caused by impedance mismatch and crosstalks from nearby signals and other impediments ...

Glaucoma occurs due to optic nerve damage. A common treatment is prescription eye drops. Although eye drops do not cure or reverse vision loss, they can help prevent optic nerve damage.