| D008297 |
Male |
|
Males |
|
| D008875 |
Middle Aged |
An adult aged 45 - 64 years. |
Middle Age |
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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 |
|
| D012029 |
Refraction, Ocular |
Refraction of LIGHT effected by the media of the EYE. |
Ocular Refraction,Ocular Refractions,Refractions, Ocular |
|
| D012086 |
Reoperation |
A repeat operation for the same condition in the same patient due to disease progression or recurrence, or as followup to failed previous surgery. |
Revision, Joint,Revision, Surgical,Surgery, Repeat,Surgical Revision,Repeat Surgery,Revision Surgery,Joint Revision,Revision Surgeries,Surgery, Revision |
|
| 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 |
|
| D006801 |
Humans |
Members of the species Homo sapiens. |
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man |
|
| 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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| D017391 |
Epikeratophakia |
A procedure that modifies REFRACTIVE ERRORS by the transplantation of a donor CORNEA to the anterior surface of the patient's cornea. |
Epikeratoplasty,Epikeratophakias,Epikeratoplasties |
|
| D049008 |
Keratectomy, Subepithelial, Laser-Assisted |
A surgical technique to correct REFRACTIVE ERRORS of the EYE, such as MYOPIA and ASTIGMATISM. In this method, a flap of CORNEAL EPITHELIUM is created by exposure of the area to dilute alcohol. The flap is lifted and then replaced after laser ablation of the subepithelial CORNEA. |
Keratomileusis, Subepithelial, Laser-Assisted,Laser-Assisted Subepithelial Keratectomy,LASEK,Laser Subepithelial Keratomileusis,Laser-Assisted Sub-Epithelial Keratomileusis,Subepithelial Keratectomy, Laser-Assisted,Subepithelial Keratomileusis, Laser-Assisted,Subepithelial Photorefractive Keratectomy,Keratectomies, Subepithelial Photorefractive,Keratectomy, Subepithelial Photorefractive,Laser Assisted Subepithelial Keratectomy,Laser-Assisted Subepithelial Keratectomies,Laser-Assisted Subepithelial Keratomileusis,Photorefractive Keratectomies, Subepithelial,Photorefractive Keratectomy, Subepithelial,Sub-Epithelial Keratomileusis, Laser-Assisted,Subepithelial Keratectomies, Laser-Assisted,Subepithelial Keratectomy, Laser Assisted,Subepithelial Keratomileusis, Laser,Subepithelial Keratomileusis, Laser Assisted,Subepithelial Photorefractive Keratectomies |
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