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Samenvatting Contactlens 1 - Opdrachten Hoofdstuk 15

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Contactlens 1 opdrachten week 7 van hoofdstuk 15. Let op, vraag 15 mist.

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November 28, 2019
Number of pages
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Written in
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Cursus: Contactlens 1 (CTL1)
Cursuscode: GOO-2.CTL1-17
Lesweek: 7



Titel: Vragen hoofdstuk 15 ‘Bifocal Contact Lenses’

Lees hoofdstuk 15 uit ‘Clinical Manual of Contact Lenses’ en de genoemde
artikelen. Beantwoord de volgende vragen aan de hand van de theorie:

1. Maak de verschillen inzichtelijk tussen een alternerend systeem en een
simultaan systeem op het gebied van voor- en nadelen, aanpaswijze en
klantselectie.


- Alternerend systeem: 2 specifieke gebieden in de lens voor dichtbij en
veraf kijken
o Voordelen

o Nadelen
 Je hebt geen tussenafstand
 Verminderd zicht (minder helder dan met bril)
o Aanpaswijze
 Als pupilgrootte zicht beïnvloed  ander lensdesign
o Klantselectie
 Oudere generatie die lenzen willen blijven dragen
 Klanten met hoge myopie / hypermetropie
- Simultaan systeem: verschillende ringen met sterktes. Je ziet alle
verschillende afstanden op hetzelfde moment, maar je hersenen kiezen
het ‘beste’ beeld.
o Voordelen
 Je hebt tussenafstand
o Nadelen
 Verminderd zicht (minder helder dan met bril)
 Grote pupil kan leiden tot glare en slecht zicht
o Aanpaswijze
 Als pupilgrootte zicht beïnvloed  ander lensdesign
o Klantselectie
 De oudere generatie die lenzen willen blijven dragen




Contactlens 1 (CTL1) © Hogeschool Utrecht
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