Category:Intraocular lenses
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English: An intraocular lens (IOL) is a lens implanted in the eye used to treat cataracts or myopia. The most common type of IOL for cataract treatment are known as pseudophakic IOLs which work by replacing the crystalline lens which has been clouded over by cataracts. The second type of IOL, more commonly known as a phakic intraocular lens (PIOL), is a lens which is placed over the existing natural lens used in refractive surgery to change the eye's optical power as a treatment for myopia or nearsightedness. IOLs usually consists of a small plastic lens with plastic side struts, called haptics, to hold the lens in place within the capsular bag inside the eye. IOLs were traditionally made of an inflexible material (PMMA), although this has largely been superseded by the use of flexible materials. Most IOLs fitted today are fixed monofocal lenses matched to distance vision. However, other types are available, such as multifocal IOLs which provide the patient with multiple-focused vision at far and reading distance, and adaptive IOLs which provide the patient with limited visual accommodation.
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Unterkategorien
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Medien in der Kategorie „Intraocular lenses“
Folgende 20 Dateien sind in dieser Kategorie, von 20 insgesamt.
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Anterior capsular opacification.jpg 773 × 478; 241 KB
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Augenlinsenersatz rechts in der Computertomografie 85M - CT axial - 001.jpg 1.192 × 632; 56 KB
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Eye doctor examining Nigerian patient with keratometer.jpg 1.164 × 912; 203 KB
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Hinterkammerlinse 01 (fcm).jpg 2.268 × 1.624; 1,7 MB
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Hinterkammerlinse 02 (fcm).jpg 4.367 × 3.294; 8,26 MB
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Hinterkammerlinse 03 (fcm).jpg 3.104 × 1.694; 2,3 MB
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Implantierbare Kontaktlinse.jpg 1.107 × 758; 98 KB
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In-the-Bag-Intraocular-Lens-Placement-via-Secondary-Capsulorhexis-with-Radiofrequency-Diathermy-in-pone.0062381.s001.ogv 6 min 57 s, 320 × 240; 23,88 MB
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Intraocular lens under cornea, six years after installation (no flash).jpg 6.000 × 4.000; 9,56 MB
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Intraocular lens under cornea, six years after installation (with flash).jpg 6.000 × 4.000; 6,92 MB
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Intraocular-lens-in-holder.jpg 599 × 388; 88 KB
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IOL-Injector.jpg 3.465 × 1.180; 1,18 MB
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Medical instrument Eye IOL Dialer or Sinsky hook.jpg 1.600 × 1.200; 187 KB
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Optic Capture of IOL.jpg 784 × 528; 105 KB
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PEA and IOL-ca.svg 693 × 1.166; 32 KB
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PEA and IOL.svg 744 × 1.165; 35 KB
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PIOL in oog.jpg 316 × 218; 9 KB
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Visian Implantable Collamer Lens.jpg 320 × 240; 9 KB