- Air Optix Plus Hydraglyde...EzContacts.com$65.95
- Dailies Total1 Contacts...EzContacts.com$69.95
- Acuvue Oasys Contacts 12...EzContacts.com$42.95
- TOTAL30 - 6 Pack Contacts...EzContacts.com$44.95
- Acuvue Oasys 12 Pack ...EzContacts.com$42.95
- Acuvue Oasys Contacts (24...EzContacts.com$82.95
- Acuvue 2 Contacts Contact...EzContacts.com$19.95
- Dailies Aquacomfort Plus...EzContacts.com$74.95
- Coopervision - Biofinity...EzContacts.com$49.95
- Johnson And Johnson...EzContacts.com$38.95
- Acuvue Oasys Contacts ...EzContacts.com$42.95
- Bausch And Lomb Infuse...EzContacts.com$69.95
- Acuvue Oasys 1 Day ...EzContacts.com$69.95
- Best Contact Lenses...EzContacts.com$32.95
- Bausch + Lomb - Ultra ...EzContacts.com$26.95
- 1-Day Acuvue Moist 90...EzContacts.com$49.95
- Bausch & Lomb Ultra ...EzContacts.com$46.95
- Precision1 90 Pack ...WebEyeCare$47.59
Ads
related to: contacts with prism correction devices for reading
Search results
Results from the WOW.Com Content Network
Prism dioptres. Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [2]
A pair of contact lenses, positioned with the concave side facing upward. A corrective lens is a transmissive optical device that is worn on the eye to improve visual perception. The most common use is to treat refractive errors: myopia, hypermetropia, astigmatism, and presbyopia.
Vertex distance is the distance between the back surface of a corrective lens, i.e. glasses (spectacles) or contact lenses, and the front of the cornea. Increasing or decreasing the vertex distance changes the optical properties of the system, by moving the focal point forward or backward, effectively changing the power of the lens relative to ...
Prism (optics) An optical prism is a transparent optical element with flat, polished surfaces that are designed to refract light. At least one surface must be angled — elements with two parallel surfaces are not prisms. The most familiar type of optical prism is the triangular prism, which has a triangular base and rectangular sides.
Spectacles (glasses) to correct refractive errors of the eye; not invasive. Contact lenses. to correct refractive errors of the eye; a little invasive. Phoropter. used in refraction testing. Tonometers. used to determine the intraoccular pressure (IOP) - useful in glaucoma; video link for various types of tonometers.
Glasses, also known as eyeglasses and spectacles, are vision eyewear with clear or tinted lenses mounted in a frame that holds them in front of a person's eyes, typically utilizing a bridge over the nose and hinged arms, known as temples or temple pieces, that rest over the ears. Glasses are typically used for vision correction, such as with ...
Ad
related to: contacts with prism correction devices for reading