A student studying the similarities and differences between a camera and the human eye makes the following observations:
$\left(\mathrm{I}\right)$ Both the eye and the camera have convex lenses.
$\left(\mathrm{II}\right)$In order to focus, the eye lens expands or contracts while the camera lens moves forward or backward.
$\left(\mathrm{III}\right)$ The camera lens produces upside down real images while the eye lens produces only upright real images.
$\left(\mathrm{IV}\right)$ A screen in camera is equivalent to the retina in the eyes.
$\left(\mathrm{V}\right)$ A camera adjusts the amount of light entering in it by adjusting the aperture of the lens. In the eye the cornea controls the amount of light. The correct statements are :