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20 Cards in this Set
- Front
- Back
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Corneal apex |
Central and steepest part of the cornea, 3-5mm in diameter |
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Bowman’s membrane |
A layer of condensed tissue that separates the epithelium from the stroma, known as the second layer of the cornea |
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Conjunctiva |
Mucous membrane that lines the eyelids and covers the front part of the eyeball |
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Contact lens |
Refers to any lens that is placed on the surface of the cornea and sclera |
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Cornea |
Clear transparent dome of the eye containing approximately +43.00 diopters of power |
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Descemet’s Membrane |
Layer of tissue separating the stroma from the endothelium, known as the fourth layer of the cornea |
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DK Value |
The amount of oxygen permeability of a lens material |
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Corneal endothelium |
The fifth layer of the cornea, consisting of a single layer of cells |
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Corneal epithelium |
The outermost and first layer of the cornea |
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Corneal stroma |
Main layer of the cornea which makes up 90% of the corneas thickness |
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Hydrogel lens |
Refers to a high water content soft contact lens |
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Lacrimal apparatus |
Refers to the tear production and disposal system of the eye |
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Lacrimal gland |
Gland that produces water in the tears |
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Lacrimation |
Production of tears |
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Keratometer |
Instrument used to measure the central anterior corneal curves |
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Sclera |
The tough fibrous outer coating of the eye known as the white of the eye |
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Meibomian gland |
Gland that secretes the oil in the tears |
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Hydroxyethyl Methacrylate |
(HEMA) the main water absorbing material in soft contacts |
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Hydrophilic |
Water absorbing |
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Hydrophobic |
Water repelling |
