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2. Prism correction - Wikipedia

   en.wikipedia.org/wiki/Prism_correction

   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]

3. Corrective lens - Wikipedia

   en.wikipedia.org/wiki/Corrective_lens

   Corrective lens. 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.

4. Contact lens - Wikipedia

   en.wikipedia.org/wiki/Contact_lens

   Contact lens. A pair of contact lenses, positioned with the concave side facing upward. Putting contacts in and taking them out. One-day disposable contact lenses with blue handling tint in blister-pack packaging. Contact lenses, or simply contacts, are thin lenses placed directly on the surface of the eyes. Contact lenses are ocular prosthetic ...

5. Vertex distance - Wikipedia

   en.wikipedia.org/wiki/Vertex_distance

   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 ...

6. Use full pane contacts in AOL Mail - AOL Help

   help.aol.com/articles/full-pane-contacts-in-aol-mail

   1. Under Views, click Contacts. 2. Click on the contact's name. 3. Click Edit. 4. Make any changes you want to the contact's info. • Click the Camera icon to change the contact's image.

7. Compose and send emails in AOL Mail - AOL Help

   help.aol.com/articles/aol-mail-compose-and-contacts

   Compose and send emails in AOL Mail. AOL Mail lets you customize how you want your emails to look when sending messages to your contacts. Send, forward and reply to messages, create and use a signature, or choose a default font to make every message your own.