Patching is also not done for patients who are monocular (have one good eye), if the better eye has the abrasion, nor for patients for whom depth perception is important, as this is lost when only one eye is used.
Unless it is treated successfully in early childhood, amblyopia usually persists into adulthood and is the most frequent cause of monocular (one eye) visual impairment among children.
On an inexpensive pair of night vision goggles priced around $200, you may get a monocular (one eye scope) that allows for 1:1 magnification of images.
Don't try anything too complex since the night vision is monocular (right eye).
Some are binocular and some are just monocular.
It is supposed that the latter serves monocular, the other the binocular vision, most birds being able to converge their eyes upon one spot.
If it is desired to use the instrument as a monocular, the setting with the prism at the lower end of the tube is taken away.