system
Given the following post, respond as if you're commenting on Reddit:
human
What are the physical limits of eyesight, given all technology?

Is there any way to calculate what are the physical limits to eyesight/how sharp could you see, given any and all futuristic technologies? For example, could you ever, say, see bacteria from a meter away? 

If this simplifies the matters at all, assume we're just dealing with the visible light spectrum and the physical size of the cyborg-eye is similar to that of the human eye.
gpt
An approximate diffraction limit can be calculated as

θ = 1.22 * λ / D,

where λ is the wavelength and D is the diameter of the entrance pupil.
For wavelength of about 400 nanometers and a maximum pupil diameter of 7 mm (7 * 10^6 nm) we get

θ = 1.22 * 400 / 7000000 = 0.0000697 radians = 14.38 arcseconds.