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
Fabric 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
Fits on the lens exactly like the full coverage patch, just without covering it all the way. 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. Made from a natural fabric fiber, gentle on the skin and comfortable for all-day wear. 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 the child can pick which one they want to wear that day. Children who patch every day usually get a year of wear out of a pair before it needs replacing.