The + sign for SPH refers to far-sightedness, while the - sign for SPH refers to short-sightedness. Please make sure to double-check if you have picked the + or - correctly Prescription  We will manufacture the Meta Quest 3 lenses according to the prescription information you provided. Should you have any inquiries on the prescription, please contact your optical practitioner for assistance. It is advised that you conduct an eye check before purchasing our Oculus lenses, which provide more accurate data on your eye's prescription.   Enjoy an unmatchable VR experience today with this magnetic Oculus Quest 3 prescription lens adapter. The lenses bring the best performance out of your Oculus headset, as their ultimate clarity makes virtual becomes reality. No more discomforting nose bump, and protect your Oculus lens from scratches thanks to this sturdy Oculus lens adapter. The patented design of the Meta Quest 3 prescription lenses enables swift installation, which can be done in less than 5 seconds. The product comes with a magnetic mount and magnetic lenses. First, put the mount on the headset’s lens, then simply put the lenses onto the magnetic mount, the lenses will stay on the mount firmly. When sharing the headset among friends and family, simply take off the lens at ease and the Oculus headset is prescription-free