Human Eye's Far and Near Point of Focus: Understanding Visual Acuity

The far point of the human eye with normal vision is infinity, which means that parallel rays of light coming from a distant object are focused on the retina without any accommodation or adjustment of the lens.

The near point of the human eye with normal vision is about 25 centimeters, which means that the closest distance at which an object can be seen clearly without strain or accommodation is 25 centimeters from the eye.