retina
The smallest object a human eye can see in special condition is 0.116 mm.
-- You "see" only when light enters your eye. -- You 'see' an object only when light from that object enters your eye. -- If the object itself doesn't generate light, then light from some other source must illuminate the object, and some of that light must reflect from the object to your eye. -- In absolute darkness, there is no light, and you do not 'see'.
reflect
the iris and the lens focus the image to fall on the RETINA.
an image
The cornea is the part of the human eye that bends light rays the most when focused on a distant object.
An image of that object formed by the lens of the eye on the retina.
An eye lense is the clear part of your eye that lets you see through it.
The human eye can typically see objects as small as 0.1 millimeters, which is about the width of a human hair.
The eye does not actively capture the light rays that are reflected off the object being looked at. They pass into the eye through the cornea..
The frequency or wavelength of the light reflected from the object to your eye.
it is a part of your body that lets you to see