| D008297 |
Male |
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Males |
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| D008875 |
Middle Aged |
An adult aged 45 - 64 years. |
Middle Age |
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| D009051 |
Mountaineering |
A sport involving mountain climbing techniques. |
Mountaineerings |
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| D009216 |
Myopia |
A refractive error in which rays of light entering the EYE parallel to the optic axis are brought to a focus in front of the RETINA when accommodation (ACCOMMODATION, OCULAR) is relaxed. This results from an overly curved CORNEA or from the eyeball being too long from front to back. It is also called nearsightedness. |
Nearsightedness,Myopias,Nearsightednesses |
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| D003315 |
Cornea |
The transparent anterior portion of the fibrous coat of the eye consisting of five layers: stratified squamous CORNEAL EPITHELIUM; BOWMAN MEMBRANE; CORNEAL STROMA; DESCEMET MEMBRANE; and mesenchymal CORNEAL ENDOTHELIUM. It serves as the first refracting medium of the eye. It is structurally continuous with the SCLERA, avascular, receiving its nourishment by permeation through spaces between the lamellae, and is innervated by the ophthalmic division of the TRIGEMINAL NERVE via the ciliary nerves and those of the surrounding conjunctiva which together form plexuses. (Cline et al., Dictionary of Visual Science, 4th ed) |
Corneas |
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| D006801 |
Humans |
Members of the species Homo sapiens. |
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man |
|
| D000531 |
Altitude |
A vertical distance measured from a known level on the surface of a planet or other celestial body. |
Altitudes |
|
| D000860 |
Hypoxia |
Sub-optimal OXYGEN levels in the ambient air of living organisms. |
Anoxia,Oxygen Deficiency,Anoxemia,Deficiency, Oxygen,Hypoxemia,Deficiencies, Oxygen,Oxygen Deficiencies |
|
| D020731 |
Keratomileusis, Laser In Situ |
A surgical procedure to correct MYOPIA by CORNEAL STROMA subtraction. It involves the use of a microkeratome to make a lamellar dissection of the CORNEA creating a flap with intact CORNEAL EPITHELIUM. After the flap is lifted, the underlying midstroma is reshaped with an EXCIMER LASER and the flap is returned to its original position. |
LASIK,Laser In Situ Keratomileusis,Laser Intrastromal Keratomileusis,Laser-Assisted Stromal In Situ Keratomileusis,Intrastromal Keratomileuses, Laser,Intrastromal Keratomileusis, Laser,Laser Assisted Stromal In Situ Keratomileusis,Laser Intrastromal Keratomileuses |
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