Before buying a child binocular, it is also good practice to allow the kids to learn how to use them and, one may roll a couple of toilet paper rolls together and let them pretend that they are seeing through a pair of binoculars. In this way, the child will be able to get attuned to lifting binoculars to their eyes and pretend to look directly at an object, before handing them the real thing.
As with buying binoculars for adults, the child binocular should have adequate magnification though, a very high power is not necessary and it should show objects brightly and bring objects sufficiently close for the child to get pleasure from the viewing experience. Even the aperture need not be too great and, a 35mm aperture would suffice and there isn’t any need for larger apertures that compensate for loss of light as the child will not need to use it in such situations.
For children that use spectacles, the child should test the binocular before it is bought since, spectacles will increase the distance between their eyes and the lens and so, change the eye relief. The child should also get child binoculars that are easy to focus since an out-of-focus binocular can cause dizziness, eyestrain as well as acute eye aches. Taking all these factors into account should ensure that your child gets the best in child