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Subject 18:Progressive Addition Lenses. Identification of Progressive Addition Lenses Regions of a Progressive Addition Lens Markings in a Progressive.

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Presentation on theme: "Subject 18:Progressive Addition Lenses. Identification of Progressive Addition Lenses Regions of a Progressive Addition Lens Markings in a Progressive."— Presentation transcript:

1 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

2 Identifying Progressive Addition Lenses IDENTIFICATION THROUGH OBSERVATION MICROETCHINGS OR MARKS SENSITIVE TO ULRTRAVIOLET LIGHT

3 The regions of a progressive addition lens.

4 Marks on a progressive lens REFERENCE CIRCLES ADDITION

5 Center of a progressive lens LENSMETER PUPIL

6 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.

7 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 Lents oftàlmiques pràctiques. Marta Lupon, Marisa Vera, Joan A. Martinez, Jesús Caum

8 Bibliography 4.-Manual de prácticas de óptica oftálmica. Eloy A. Villegas, Antonio Benito. Editor. Universidad de Murcia Clinical Optics Troy E. Fannin, Theodore Grosvennor. Editor. Butterworth-Henemann ª edición.


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