what does sph mean for glasses?

Question

if my glasses are sph 0.0 on both eyes, do i need glasses at all? the reason i ask is because i want false lens glasses, but if i order them online, i have to enter the sph of the lens even i want false lens!
write back soo!

Answer 1

Sphere refers to the amount of nearsightedness (myopia) or farsightedness (hyperopia). If the sphere number is negative, the patient is nearsighted. If it is positive, he or she is farsighted. Sphere numbers of zero are called "plano" or abbreviated "PL".



Here are some prescription examples:



Sample Prescription #1: –3.75 –0.50 x 180

-3.75 -0.50 180

sphere cylinder axis

Because the sphere is negative, this individual is nearsighted. Notice, however, that the cylinder number is in minus format (i.e., a negative number). When converted to plus cylinder format, the resultant prescription is –4.25 +0.50 x 90.

If your prescription is +4.00sph. The SPH is indicating to the optician or whoever that is filling the prescription that nothing else is after this. Meaning that you do not have astigmatism. When you have a plus (+) prescription, your lenses are thick in the center. When you have a minus (-) prescription than your lenses are thicker on the edges. Are you using these as reading glasses only? If so, I would not worry about them. If not, check if the frame is in a rectangle shape. This would not work for you cosmetically. Try to get more of a circle shape if this is more complementary to you. Upgrade to a flatter surface lens.

Answer 2

Sph Glasses

Answer 3

DVa is an abbrieviation for distance visual acuity, for example 20/20. Add is the part of your prescription (always a + number) for reading. SPH means sphere - the amount you are near- or farsighted. I would recommend not ordering bifocals or progressives (wrongly called a no line bifocal) over the Internet - special measurements of your eyes need to be taken as well as special measurements with you wearing the frame you're going to use.