4. Kongreß Der Deutschen Gesellschaft Für Intraokularlinsen Implantation 1991
DOI: 10.1007/978-3-642-76082-2_51
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Die Optik diffraktiver Intraokularlinsen

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“…The most common types of multifocal lenses are either diffractive or refractive. Diffractive IOLs acquire a second focal point by diffraction of light at concentric circles on the posterior surface of the lens, similar to the physical principle of the Fresnel phase plate 3. Today, the most common diffractive multifocal IOL is the 811E (Pharmacia) made of PMMA (poly(methylmethacrylate)).…”
mentioning
confidence: 99%
“…The most common types of multifocal lenses are either diffractive or refractive. Diffractive IOLs acquire a second focal point by diffraction of light at concentric circles on the posterior surface of the lens, similar to the physical principle of the Fresnel phase plate 3. Today, the most common diffractive multifocal IOL is the 811E (Pharmacia) made of PMMA (poly(methylmethacrylate)).…”
mentioning
confidence: 99%
“…Refraktive Linsen erzeugen mehrere Brennpunkte im Bereich einer breiten Schnittfläche [9,12]. Diffraktive MIOL verteilen das einfallende Licht auf 2 Hauptbrennpunkte [9,13], der Rest geht als Streulicht oder im Ultranahbereich verloren [14]. Diese Lichtverteilung ermöglicht scharfe Abbildungen unterschiedlicher Distanzen.…”
Section: Discussionunclassified