| D007498 |
Iris |
The most anterior portion of the uveal layer, separating the anterior chamber from the posterior. It consists of two layers - the stroma and the pigmented epithelium. Color of the iris depends on the amount of melanin in the stroma on reflection from the pigmented epithelium. |
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| D007908 |
Lens, Crystalline |
A transparent, biconvex structure of the EYE, enclosed in a capsule and situated behind the IRIS and in front of the vitreous humor (VITREOUS BODY). It is slightly overlapped at its margin by the ciliary processes. Adaptation by the CILIARY BODY is crucial for OCULAR ACCOMMODATION. |
Eye Lens,Lens, Eye,Crystalline Lens |
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| D007909 |
Lenses |
Pieces of glass or other transparent materials used for magnification or increased visual acuity. |
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| D011680 |
Pupil |
The aperture in the iris through which light passes. |
Pupils |
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| D002387 |
Cataract Extraction |
The removal of a cataractous CRYSTALLINE LENS from the eye. |
Enzymatic Zonulolysis,Phakectomy,Cataract Extractions,Enzymatic Zonulolyses,Extraction, Cataract,Extractions, Cataract,Phakectomies,Zonulolyses, Enzymatic,Zonulolysis, Enzymatic |
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| D006801 |
Humans |
Members of the species Homo sapiens. |
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man |
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| D014792 |
Visual Acuity |
Clarity or sharpness of OCULAR VISION or the ability of the eye to see fine details. Visual acuity depends on the functions of RETINA, neuronal transmission, and the interpretative ability of the brain. Normal visual acuity is expressed as 20/20 indicating that one can see at 20 feet what should normally be seen at that distance. Visual acuity can also be influenced by brightness, color, and contrast. |
Acuities, Visual,Acuity, Visual,Visual Acuities |
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| D055095 |
Optics and Photonics |
A specialized field of physics and engineering involved in studying the behavior and properties of light and the technology of analyzing, generating, transmitting, and manipulating ELECTROMAGNETIC RADIATION in the visible, infrared, and ultraviolet range. |
Photonics,Photonics and Optics |
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| D019736 |
Prostheses and Implants |
Artificial substitutes for body parts, and materials inserted into tissue for functional, cosmetic, or therapeutic purposes. Prostheses can be functional, as in the case of artificial arms and legs, or cosmetic, as in the case of an artificial eye. Implants, all surgically inserted or grafted into the body, tend to be used therapeutically. IMPLANTS, EXPERIMENTAL is available for those used experimentally. |
Implants, Artificial,Prostheses and Implant,Prosthesis,Prosthetic Implant,Endoprostheses,Endoprosthesis,Prostheses,Prosthetic Implants,Artificial Implant,Artificial Implants,Implant and Prostheses,Implant, Artificial,Implant, Prosthetic,Implants and Prostheses,Implants, Prosthetic |
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