Nikon D3300 - Manual (Page 287)

267 N The Retouch Menu: Creating Retouched Copies
This option is used to correct “red-eye” caused by the flash, and
is available only with photographs taken using the flash. The
photograph selected for red-eye correction can be previewed in
the edit display. Confirm the effects of red-eye correction and
press
J to create a copy. Note that red-eye correction may not
always produce the expected results and may in very rare
circumstances be applied to portions of the image that are not
affected by red-eye; check the preview thoroughly before
proceeding.
Red-Eye Correction
G button
➜ N retouch menu