What is the power range for contact lenses?
All Contact Lenses contact lenses
| Contact Lens Name | Power Range | Diameters |
|---|---|---|
| 1 Day Acuvue TruEye | +6.00 to -12.00 | 14.2 |
| Acuvue 2 | +8.00 to -12.00 | 14.0 |
| Acuvue Advance | +8.00 to -12.00 | 14.0 |
| Acuvue Advance For Astigmatism | +6.00 to -9.00 | 14.5 |
What is the strongest contact lens prescription?
If not, what is the maximum number of diopters for which a person would be able to wear contacts? A: Actually, almost all nearsighted people can wear contact lenses, no matter how high their prescription. In fact, there are contact lens laboratories that make custom lenses up to -30.00 diopters!
How do I know the power of my contact lens prescription?
Regular 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.
Is Pwr the same as SPH?
PWR: Same as sphere. Some prescriptions use PWR instead of SPH. +: Plus sign – A plus sign before a number in the power box shows that you are farsighted. This means that you see better far away than up close.
How bad is 1.75 eyesight?
A -1.75 eyewear prescription essentially signifies that you need some additional power to see some objects that are further away. Specifically, we are talking about things like watching television or objects or people at a distance when you are driving.
Is SPH same as power?
Power (pwr) / Sphere (sph) / Dioptre (D): This value is the power of the lens needed to correct your long or short-sightedness and is measured in Dioptres (D). A minus (-) sign indicates that you are short-sighted, whereas a plus (+) sign shows that you are long-sighted.
What is BVD on an eye prescription?
BVD stands for back vertex distance and is the distance in millimetres between the front of your eye and the lens of your glasses. This distance can influence the effective strength of a lens and is usually only given for higher-strength prescriptions.
What does the power on contact lenses mean?
Power is the strength of the contact lens, the part that magnifies and helps correct vision. According to the Ohio State University Medical Center , although contact lenses are similar to a spectacle prescription, contact lens measurements usually have different numbers. Power is written as a unit of measurement called a diopter.
What does contact lens add power mean?
The “add power” measurement is a requirement for bifocal and multifocal contacts in order describe the amount of additional power of the lens required to assist with near vision. The “add power” measurement is always indicated by a plus sign (+).
What do the numbers on a contact lens box mean?
The power of the lenses necessary to correct your vision is measured in units called diopters (see below). The first number designates the amount of myopia (minus numbers) or hyperopia (plus numbers). The second number (if present), indicates the amount of astigmatism. The third number shows the axis of the astigmatism.
What is contact lens?
Contact lens. A contact lens, or simply contact, is a thin lens placed directly on the surface of the eye. Contact lenses are ocular prosthetic devices used by over 150 million people worldwide, and they can be worn to correct vision, for cosmetic, or therapeutic reasons.