If your prescription has the word Plano, PI, or an infinity sign, it means that you do not have distance problems . You may, however, have astigmatism. Most values will be 0.00 to +/-20.00. Axis. Axis is the lens meridian that has no cylinder power to correct astigmatism.
What does Plano sphere mean for glasses?
If the sphere indicates “Pl” or “Plano” for both eyes, it means that you do not suffer from myopia or hyperopia . A positive sphere indicates hyperopia. People affected by farsightedness have either an eyeball that is too short, or a retina curvature of that is not pronounced enough.
What does Plano mean for eye contacts?
Plano lenses are eyeglass lenses that provide no vision correction . They are in widespread use as protective equipment or safety spectacles designed to protect against eye injuries caused by flying dust, dirt, metal, wood chips, and other particles.
Is Plano the same as 0?
Yes, plano in a prescription is equivalent to 0.00 , no refractive power. In reference to eyeglass lenses and contact lenses, “plano” means “no prescription”; the lens does not correct vision in any way.
What does Plano mean?
plano- 1 . a combining form meaning “flat,” “plane ,” used in the formation of compound words: planography. Also plani-; especially before a vowel, plan-.
Is +0.25 eye prescription bad?
If your number is between +0.25 and +2.00, you have mild farsightedness. If your number is between +2.25 and +5.00, you have moderate farsightedness. If your number is greater than +5.00, you have high farsightedness.
What is NV add?
(also NV-ADD): the Near Vision (NV) Reading ADDition correction on a multifocal Rx. This can be used for bifocal or progressive glasses, or for single-vision reading or computer (intermediate) vision glasses.
Do you need a prescription for plano lenses?
Do I still need a prescription? Yes, you still need a prescription . These types of contact lenses can be referred to as decorative, plano, Halloween, or special effects lenses, and are designed purely to change the appearance of the eye. Though they have no vision correcting power, they are regulated medical devices.
What are non corrective plano lenses?
Glasses with no prescription are called Plano lenses, meaning they have no visual correcting power . ... Although the price of plano lenses are about the same as normal prescription lenses, wearing a pair of plano lenses is the only safe way to wear non-corrective lenses.
Do you need a prescription for Plano colored contacts?
Do you need a prescription for color contact lenses? Yes , you need a contact lens prescription to purchase colored contacts legally in the United States. This is true even for plano (“non-prescription”) colored contacts that have no power for vision correction and are used for cosmetic purposes only.
What does SPH mean for cylinder?
No cylinder power or axis , which means no astigmatism is present. This doctor chose to write “SPH,” to confirm the right eye is being prescribed only spherical power.
What is NV add on zenni?
There may also be a fourth section on the Rx labeled NV-ADD (for Near Vision-Reading ADDition ), which could be used to order a pair of bifocal or progressive glasses with a close-up vision section in the bottom part of the lens.
How do I get NV add?
For a computer screen, or arms length distance, you would generally use half of the add power prescribed on your Rx for the computer glasses. You would then take half of the add power +2.00, which would be +1.00, and then add it to the SPH (or Sphere) of the prescription.
Where does the term Plano come from?
Now you think of it, plano is a strange sounding word. But it derives from the Latin word “planus” for flat or level .
What does 0.5 glasses mean?
Astigmatism is measured in diopters. A perfect eye with no astigmatism has 0 diopters. Most people have between 0.5 to 0.75 diopters of astigmatism. People with a measurement of 1.5 or more typically need contacts or eyeglasses to have clear vision.
What is the weakest eyeglass prescription?
The lowest strength is usually 1.00 diopters . Glasses go up in strength by factors of . 25 (1.50, 1.75, 2.00). The strongest glasses are 4.00 diopters.
What does 1.25 glasses mean?
1.25 reading glasses
Reading glasses in the 1.25 range are for low to moderately-farsighted wearers . If strengths below 1.00 aren’t adequate, lenses in the 1.00-2.00 range should do the job.
What is a plano concave lens?
A plano concave lens is an optical lens with one concave surface and one flat surface . It has a negative focal length, and can be used for light projection, beam expansion, or to increase focal length of an optical system.
What does NV mean on glasses?
DV vs. NV – Your prescription might also contain the abbreviations DV (distance vision) or NV ( near vision ). DV is the portion of your prescription which corrects your ability to see things far away. NV means your prescription is for reading only.
What is zenni Blokz?
Blokz are virtually clear lenses made with a special blue-light blocking polymer that prevents blue light and UV rays from passing through the lens. It is incorporated into the lens material which means the blue-blocking protection won’t chip or wear away.
Is it bad to wear colored contacts everyday?
Colored contacts are safe to use and can be used daily if you prefer . If you need a prescription for contacts, colored contacts can also be made into a prescription version so that you can get the best of both worlds.
How do I read my contact lens prescription?
- Eye – Which eyes the prescription line item is for. ...
- SPH – Sphere (this can also be referred to as Power or PWR)
- BC – Base Curve (usually a number between 8 and 10)
- DIA – Diameter (usually a number between 13 and 15)
- Brand – The brand/type of contact lens that your doctor has fitted you for.
How do u change ur eye color?
- blue.
- hazel.
- green.
- violet.
- gray.
- amethyst.
- brown.
What is DS and DC in eye prescription?
If one or both of your eyes have no astigmatism, your doctor may just leave these blank or mark DS (short for diopters ) to indicate that they checked and that eye (or eyes) didn’t present an astigmatism. Add is any additional magnifying power that needs to be added to the lower part of your lenses .
How do I read my eye test results?
In general, the further away from zero the number on your prescription, the worse your eyesight and the more vision correction (stronger prescription) you need. A “plus” (+) sign in front of the number means you are farsighted, and a “minus” (-) sign means you are nearsighted.
What does SPH and CYL mean for glasses?
SPH (or Sphere) indicates the eyeglass prescription power, or how strong your lenses need to be to correct your vision. CYL (or Cylinder) indicates astigmatism, a condition where the cornea is irregularly shaped causing blurred or distorted vision. It also tells the lens strength needed to fix it.
Which index lens should I get?
A high-index lens may be recommended if your optical prescription is above 2.00 diopters. High-index lenses have a refractive index above 1.50 — ranging from 1.53 to 1.74. ... Note: The higher the refractive index, the thinner the lens.
What is normal SPH vision?
An SPH number indicates if you are farsighted or nearsighted. If the SPH value is 0.00, or noted by Plano, Pl, or an infinity sign, you do not have a vision distance problem. Typical SPH numbers range between 0.00 and +/- 20.00.
How do I read my PD on my glasses prescription?
Starting with the right eye, line up the zero end of the ruler at your pupil; measure the distance from your right to your left pupil . The millimeter number that lines up with your left pupil is the measurement you want. That number is your PD.
