| Amsler's chart | A 10-cm square divided into 5-mm squares upon which an individual may project a defect in the central visual field. (05 Mar 2000) |
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| chart | 1. A recording of clinical data relating to a patient's case. Synonym: curve. 3. In optics, symbols of graduated size for measuring visual acuity, or test types for determining far or near vision. See: Snellen's test types. Origin: L. Charta, sheet of papyrus (05 Mar 2000) |
| Walker's chart | A system of plotting the relative foetal and placental sizes. (05 Mar 2000) |
| quality control chart | A chart illustrating the allowable limits of error in laboratory test performance, the limits being a defined deviation from the mean of a control serum, most commonly ±2 SD. See: quality control. (05 Mar 2000) |
| isometric chart | A chart or graph that displays three dimensions on a plane surface. (05 Mar 2000) |
| Tanner growth chart | A series of chart's showing distribution of parameters of physical development, such as stature, growth curves, and skinfold thickness, for children by sex, age, and stages of puberty. (05 Mar 2000) |
| accessory organs of the eye | The eyelids, with lashes and eyebrows, lacrimal apparatus, conjunctival sac, and extrinsic muscles of the eyeball. Synonym: organa oculi accessoria, accessory organs, accessory visual apparatus, adnexa oculi, appendages of eye. (05 Mar 2000) |
| accommodation of eye | The increase in thickness and convexity of the eye's lens in order to focus the image of an external object upon the retina. (05 Mar 2000) |
| amaurotic cat's eye | A yellow reflex from the pupil in cases of retinoblastoma or pseudoglioma. (05 Mar 2000) |
| anterior chamber of eye | The space between the cornea anteriorly and the iris/pupil posteriorly, filled with a watery fluid (aqueous humor) and communicating through the pupil with the posterior chamber. Synonym: camera anterior bulbi, camera oculi anterior, camera oculi major. (05 Mar 2000) |
| anterior eye segment | That part of the eyeball anterior to the lens. (12 Dec 1998) |
| antibiotic eye drops | <pharmacology> A medication that is pH balanced to allow placement into the eye for the purpose of killing bacteria. Examples include: Bleph-10, Chloromycetin, Cortisporin-Ophthalmic, Gantrisin, Genoptic, Gentacidin, Garamycin, Gantrisin, Ilotycin, Sodium Sulamyd and Sulphair. (27 Sep 1997) |
| aphakic eye | The eye from which the lens is absent. (05 Mar 2000) |
| appendages of eye | The eyelids, with lashes and eyebrows, lacrimal apparatus, conjunctival sac, and extrinsic muscles of the eyeball. Synonym: organa oculi accessoria, accessory organs, accessory visual apparatus, adnexa oculi, appendages of eye. (05 Mar 2000) |
| artificial eye | A curved disk of opaque glass or plastic, containing an imitation iris and pupil in the centre, inserted beneath the eyelids and supported by the orbital contents after evisceration or enucleation; it may be ready-made (stock) or custom-made. (05 Mar 2000) |