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[[File:Prismenglaeser2.jpg|thumb|Prism lenses (here unusually thick) are used for pre-operative prism adaptation.]] ...rism correction''' as a component of some [[eyeglass prescription]]s. A [[corrective lens|lens]] which includes some amount of prism correction will displace th ...

...e exclusively with [[refraction|light-refracting]] [[lens (optics)|optical lenses]] and does not use [[reflecting telescope|mirrors]] or [[Fresnel zone plate ...ng to the [[hour angle]] of the object to be observed. The [[lens (optics)|lenses]] were made of high-quality glass from the [[Schott AG|Glastechnisches Labo ...

...ith lower visual acuity, who prefer to watch HDTV without their corrective lenses may want to sit closer to see critical details and run the risk of undesira ...