subject 18: progressive addition lenses
DESCRIPTION
Subject 18: Progressive Addition Lenses. . Identification of Progressive Addition Lenses Regions of a Progressive Addition Lens Markings in a Progressive Addition Lens Center of a Progressive Lens Determining the parameters of a progressive lens. Identifying Progressive Addition Lenses. - PowerPoint PPT PresentationTRANSCRIPT
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Subject 18:Progressive Addition Lenses.
• Identification of Progressive Addition Lenses
• Regions of a Progressive Addition Lens• Markings in a Progressive Addition Lens• Center of a Progressive Lens• Determining the parameters of a
progressive lens
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Identifying Progressive Addition Lenses
• IDENTIFICATION THROUGH OBSERVATION
• MICROETCHINGS OR MARKS SENSITIVE TO ULRTRAVIOLET LIGHT
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The regions of a progressive addition lens.
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Marks on a progressive lens
REFERENCE CIRCLES
ADDITION
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Center of a progressive lens
LENSMETER
PUPIL
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Determining the parameters of a progressive lens
• Locate the marks using illumination over a dark background and a marker,
• Place the lens on a template provided by the manufacturer and transcribe the other markings,
• Place the lens in a lens-meter and determine its powers.
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Bibliography
1.- Tecnología óptica. Lentes oftálmicas, diseño y adaptación.Joan Salvadó, Marta Fransoy y otros.Edicions UPC 1997 colección POLITEXT
2.- El vidrio y la óptica ocular.
Editor. Corning France 1988. 3.- Lents oftàlmiques pràctiques.
Marta Lupon, Marisa Vera, Joan A. Martinez, Jesús Caum
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Bibliography
4.- Manual de prácticas de óptica oftálmica.Eloy A. Villegas, Antonio Benito.Editor. Universidad de Murcia 1999.
5.- Clinical Optics
Troy E. Fannin, Theodore Grosvennor.Editor. Butterworth-Henemann 1996 2ª edición.