What is the resolution of the human eye without a magnifying device?

The resolution of the human eye is typically around 1 arcminute, which translates to the ability to distinguish two points that are approximately 0.3 millimeters apart at a distance of about 10 meters. This means that under ideal conditions, a person with normal vision can resolve details down to about 60 pixels per degree of visual angle. However, this resolution can vary based on factors like lighting, contrast, and individual differences in eyesight.