| OHS | obesity hypoventilation syndrome; occipital Horn syndrome; occupational health service; ocular histo... |
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| OHT | ocular hypertension |
| OM | obtuse mental; occipitomental; occupational medicine; ocular movement; oculomotor; Osborne Mendel [r... |
| OMD | ocular muscle dystrophy; oculomandibulodyscephaly; organic mental disorder; oromandibular dystonia |
| OMT | object modeling technique; ocular microtremor; O-methyltransferase; ophthalmic medical technician or... |
| reflex, vestibulo-ocular | A reflex wherein impulses are conveyed from the cupulas of the saemicircular canals and from the otolithic membrane of the saccule and utricle via the vestibular nuclei of the brainstem and the median longitudinal fasciculus to the oculomotor nerve nuclei. It functions to maintain a stable retinal image during head rotation by generating appropriate compensatory eye movements. (12 Dec 1998) |
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| refraction, ocular | Refraction of light effected by the media of the eye. It also includes the determination of the refractive state and refractive correction. (12 Dec 1998) |
| goniometre ocular | <microscopy> A special type of ocular fitted with crosslines and a graduated head which rotates the crosslines to facilitate the measuring of angles, as in crystallography. (05 Aug 1998) |
| retro-ocular | <anatomy> Behind the pons. Origin: L. Bulbus = bulb (18 Nov 1997) |
| cogwheel ocular movements | Loose, jerky ocular rotations replacing smooth following rotations. (05 Mar 2000) |
| compensating ocular | An ocular that compensates and corrects for the effects of chromatic aberration in the objective. (05 Mar 2000) |
| wide field ocular | An ocular that gives a larger than usual field of view and a high eyepoint. (05 Mar 2000) |
| musculoskeletal, neural, and ocular physiology | Activities and functions of the musculoskeletal system, the nervous system, and the eye and their parts. (12 Dec 1998) |
| convergence, ocular | The turning inward of the lines of sight toward each other. (12 Dec 1998) |
| Huygens' ocular | The compound ocular of a microscope, composed of two planoconvex lenses so arranged that the plane side of each is directed toward the observer. (05 Mar 2000) |
| intra-ocular calcification | <radiology> Retinoblastoma, foreign body, post-inflammatory atrophy of globe, chronic hypercalcaemia, tuberous sclerosis, cataract, Coats disease (congenital vascular anomaly of retina) (12 Dec 1998) |
| inverse ocular bobbing | Slow downward eye movement followed by delayed quick upward return. (05 Mar 2000) |
| ocular | 1. Of, pertaining to or affecting the eye. 2. Eyepiece. Origin: L. Ocularis, from oculus = eye (18 Nov 1997) |
| ocular albinism | The absence of pigment chiefly in the iris, choroid, and retinal pigment epithelium with deafness; X-linked inheritance. (05 Mar 2000) |
| ocular bobbing | Sudden conjugate downward deviation of the eyes with a slow return to the normal position; seen in some comatose patients who have bilateral hemisphere lesions. (05 Mar 2000) |