I just talked about this in one other post, but in case anyone is wondering I thought I would talk about it here too. The active ingredient in the patch (scopolamine) is the same as the medication optometrists and ophthalmologists use to dilate the eye for testing or for post-operative treatment, thus the common side effect from the patch. It is annoying and scary but isn't really dangerous. Try not to touch your eyes after touching the patch or at least wash your hands and that should help. If you get more serious side effects such as eye pain or you feel like your heart is racing, that is when you should remove the patch and call your doctor.