| D007903 |
Lens Capsule, Crystalline |
The thin noncellular outer covering of the CRYSTALLINE LENS composed mainly of COLLAGEN TYPE IV and GLYCOSAMINOGLYCANS. It is secreted by the embryonic anterior and posterior epithelium. The embryonic posterior epithelium later disappears. |
Capsule, Crystalline Lens,Capsules, Crystalline Lens,Crystalline Lens Capsule,Crystalline Lens Capsules,Lens Capsules, Crystalline |
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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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| D007910 |
Lenses, Intraocular |
Artificial implanted lenses. |
Implantable Contact Lens,Lens, Intraocular,Contact Lens, Implantable,Intraocular Lens,Intraocular Lenses,Lens, Implantable Contact |
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| D008269 |
Macular Edema |
Fluid accumulation in the outer layer of the MACULA LUTEA that results from intraocular or systemic insults. It may develop in a diffuse pattern where the macula appears thickened or it may acquire the characteristic petaloid appearance referred to as cystoid macular edema. Although macular edema may be associated with various underlying conditions, it is most commonly seen following intraocular surgery, venous occlusive disease, DIABETIC RETINOPATHY, and posterior segment inflammatory disease. (From Survey of Ophthalmology 2004; 49(5) 470-90) |
Central Retinal Edema, Cystoid,Cystoid Macular Edema,Macular Edema, Cystoid,Cystoid Macular Dystrophy,Cystoid Macular Edema, Postoperative,Irvine-Gass Syndrome,Macular Dystrophy, Dominant Cystoid,Edema, Cystoid Macular,Edema, Macular,Irvine Gass Syndrome,Syndrome, Irvine-Gass |
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| D011446 |
Prospective Studies |
Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group. |
Prospective Study,Studies, Prospective,Study, Prospective |
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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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| D002908 |
Chronic Disease |
Diseases which have one or more of the following characteristics: they are permanent, leave residual disability, are caused by nonreversible pathological alteration, require special training of the patient for rehabilitation, or may be expected to require a long period of supervision, observation, or care (Dictionary of Health Services Management, 2d ed). For epidemiological studies chronic disease often includes HEART DISEASES; STROKE; CANCER; and diabetes (DIABETES MELLITUS, TYPE 2). |
Chronic Condition,Chronic Illness,Chronically Ill,Chronic Conditions,Chronic Diseases,Chronic Illnesses,Condition, Chronic,Disease, Chronic,Illness, Chronic |
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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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| D000208 |
Acute Disease |
Disease having a short and relatively severe course. |
Acute Diseases,Disease, Acute,Diseases, Acute |
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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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