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Prentice's rule is a formula to calculate the amount of prism correction in a lens based on decentration and lens power. It can be used for prescribing, tolerance control, or determining unprescribed prism in eyeglasses.
Learn how to interpret and write an eyeglass prescription that includes sphere, cylinder and axis components. Sphere and cylinder specify the power of the lenses, and axis defines the orientation of the cylinder relative to horizontal and vertical.
Learn about the different types of optical prisms, such as dispersive, reflective, beam-splitting and polarizing prisms, and how they refract, reflect or split light. Find out how prisms are made of transparent materials like glass, acrylic or fluorite, and how they can create spectra, images or polarizations.
This web page provides a comprehensive list of abbreviations used by optometrists to denote various clinical conditions, examination techniques and findings, and treatment methods. The term "ou eye" is not included in the list, but it may refer to the oculus uterque (both eyes) abbreviation.
A corrective lens is a device that improves visual perception by correcting refractive errors. Learn about the different types of corrective lenses, such as glasses, contact lenses, intraocular lenses, and their prescriptions, uses, and advantages.
Learn about the origins and development of optics from ancient times to modern days. Find out who are the pioneers of geometrical optics, physical optics, and modern optics, and what are their contributions and discoveries.
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