Which patch do you need?
If you are looking at two hundred patches wondering where to start, it comes down to one question: how much of the lens needs covering.
Fully covered
The felt covers the whole lens and nothing gets through. This is what most patching programmes mean by "patch the eye" - if your doctor didn't specify, this is the one to choose. It's non-adhesive, so nothing touches your child's skin, and it fits most frames at our standard 1.5 x 1.97 in (38 x 50 mm) size.
Simple
Sits over the lens with the design facing out and allows some light and shape through. Families use these for part-time patching, and for the first week or two when a child is still deciding whether to fight about it. Ask your optometrist before using one as your main patch.
Pirate
Worn on a soft elastic band, no frame required. For children who don't wear glasses, and for the ones who'll happily patch as long as they get to be a pirate about it. Same wool felt and lining as the rest of the range, so it washes and wears the same way. The band adjusts to fit and sits comfortably under hair.
Which eye?
The patch goes over the strong eye. Covering it is what makes the weaker eye work. Your optometrist will have told you which one and for how many hours a day - if you are not certain, ask them before you order, because the patch is made left or right specific.
How many?
Most families keep two in rotation, so one can dry while the other is on the glasses. Children who patch every day usually get a year out of a pair.