subject 18:progressive addition lenses. identification of progressive addition lenses regions of a...
TRANSCRIPT
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
• IDENTIFICATION THROUGH OBSERVATION
• MICROETCHINGS OR MARKS SENSITIVE TO ULRTRAVIOLET LIGHT
The regions of a progressive addition lens.
Marks on a progressive lens
REFERENCE CIRCLES
ADDITION
Center of a progressive lens
LENSMETER
PUPIL
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.
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
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.