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This information will help you decipher those numbers and abbreviations on your spectacle prescription. A spectacle lens tries to focus a clear image onto the retina. The doctor's prescription is due mainly to the shape of your cornea.
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www.mdsupport.org/library/prescription.html
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Single-vision lenses; The simplest form of spectacle or contact lens is the single-vision lens, made to a single prescription to correct a particular eyesight problem. Concave lenses are used to correct short sight and convex lenses to correct long sight.
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www.college-optometrists.org/index.aspx/pcms/site.Publi...
www.college-optometrists.org/index.aspx/pcms/site.Public_Related_Links.Spectacles.Spectacles_home/
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Contact Lens Prescriptions Explained... Contact Lens Prescriptions Explained: Find out what all those numbers on your contact lens prescription mean. Believe it or not there is a difference between your spectacle prescription and contact lens prescription. ... Next we see -4.00 and -3.50. These tell us the power of a lens.
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www.eyetopics.com/articles/112/1/Contact-Lens-Prescript...
www.eyetopics.com/articles/112/1/Contact-Lens-Prescriptions-Explained.html
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1 to 4 always show the parameters, as explained in detail hereunder, for a spectacle lens according to the invention, whilst the partial Figures “b” show by way of comparison the corresponding parameters for a progressive spectacle lens of prior art, i.e. a spectacle lens having a distance portion, a near portion,
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freepatentsonline.com/7033022.html
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Although extending only a short distance onto the edge surface of the spectacle lens and the face concerned of the latter, the connecting surface provided in accordance with the invention between the edge surface and the face advantageously provides a particularly ... However, for reasons that are explained hereinafter,
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freepatentsonline.com/5964647.html
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Severe astigmatic blur does not interfere with spectacle lens compensation. From this it can be inferred that the average amount of blur is not an important error signal for spectacle lens compensation and therefore probably not for emmetropization either.
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www.iovs.org/cgi/content/full/44/2/449
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The phenomenon of spectacle lens compensation has been shown in chicks,1 2 rhesus monkeys,4 marmosets, 5 tree shrews (Siegwart JT, Norton TT, ARVO Abstract 2482, 1993), and guinea pigs (McFadden S, Wallman J, ARVO Abstract 3504, 1995).
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www.iovs.org/cgi/content/full/44/7/2818
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To provide a spectacle lens manufacturing system and a method of manufacturing a spectacle lens, as well as a program and a recording medium therefor, that can meet various demands for marking and by which customers ... The invention is taught below by way of various specific exemplary embodiments explained in detail,
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www.freepatentsonline.com/7167771.html
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A spectacle lens is designed by using a value determined by either measuring or specifying for an individual spectacles wearer the value of the distance VR from a reference point on the back surface o ... EP0710526 May, 1996 Spectacle lens and manufacturing method thereof...
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www.freepatentsonline.com/6871955.html
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