| ocular myiasis | Invasion of the conjunctival sac or eyeball by larvae of flies, e.g., Hypoderma bovis, H. Lineata, Sarcophaga, or Gasterophilus intestinalis. Synonym: ophthalmomyiasis. (05 Mar 2000) |
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| ocular myopathy | A specific type of slowly worsening weakness of the ocular muscles, usually associated with a pigmentary retinopathy. See: Kearns-Sayre syndrome, oculopharyngeal dystrophy. Synonym: ocular myopathy. (05 Mar 2000) |
| ocular nystagmus | The pendular or, rarely, jerky nystagmus seen in severely reduced vision. Synonym: amaurotic nystagmus. (05 Mar 2000) |
| ocular onchocerciasis | Ocular complications, such as keratitis, iridocyclitis, or retrobulbar neuritis, caused by the microfilariae of Onchocerca volvulus. Synonym: river blindness. (05 Mar 2000) |
| ocular paralysis | Paralysis of extraocular and intraocular muscles. (05 Mar 2000) |
| ocular pemphigoid | A conjunctivitis with transient small vesicles, a viscid ropy discharge, symblepharon, xerosis, and trichiasis, eventually becoming bilateral. (05 Mar 2000) |
| ocular physiology | Functions and activities of the eye as a whole or of any of its parts. (12 Dec 1998) |
| ocular prosthesis | An artificial eye or implant. (05 Mar 2000) |
| ocular rigidity | The resistance offered by the eyeball to a change in intraocular volume; manifested as a change in intraocular pressure. (05 Mar 2000) |
| ocular scoliosis | Scoliosis supposed to be due to head tilting, caused by ophthalmological dysfunction. (05 Mar 2000) |
| ocular sparganosis | Infestation of the orbits with the sparganum of Spirometra mansoni; characterised by redness and oedema of the eyelids, lacrimation, and blepharoptosis; acquired by application of infected raw frog flesh against the eye as a poultice. (05 Mar 2000) |
| ocular tension | Resistance of the tunics of the eye to deformation; it can be estimated digitally or measured by means of a tonometer. (05 Mar 2000) |
| ocular torticollis | Torticollis incident to paralysis of an extraocular muscle, especially an oblique muscle. (05 Mar 2000) |
| ocular vertigo | Dizziness attributed to refractive errors or imbalance of the extrinsic muscles. (05 Mar 2000) |
| ocular vesicle | In the embryo, one of the paired evaginations from the ventrolateral walls of the forebrain from which the sensory and pigment layers of the retina develop. Synonym: vesicula ophthalmica, ocular vesicle, optic vesicle. (05 Mar 2000) |