| Listing's reduced eye | A representation that simplifies calculations of retinal imagery: radius of anterior refracting surface, 5.1 mm; total length, 20 mm; distance of nodal point to retina, 15 mm. (05 Mar 2000) |
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| reduced eye | A simplified design of the ocular optical system, represented as having a single refracting surface and a uniform index of refraction; a model based on this concept is used in retinoscopy and ophthalmoscopy. (05 Mar 2000) |
| listing | 1. The act or process of one who lists (in any sense of the verb); as, the listing of a door; the listing of a stock at the Stock Exchange. 2. The selvedge of cloth; list. 3. The sapwood cut from the edge of a board. 4. <agriculture> The throwing up of the soil into ridges, a method adopted in the culture of beets and some garden crops. Source: Websters Dictionary (01 Mar 1998) |
| Listing, Johann | <person> German physiologist, 1808-1882. See: Listing's reduced eye, Listing's law. (05 Mar 2000) |
| Listing's law | When the eye leaves one object and fixes upon another, it revolves about an axis perpendicular to a plane cutting both the former and the present lines of vision. (05 Mar 2000) |
| reduced enamel epithelium | The several layers of the enamel organ remaining on the enamel surface after formation of enamel is completed. Synonym: reduced enamel epithelium. (05 Mar 2000) |
| reduced glutathione | Glutathione acting as a hydrogen donor. (05 Mar 2000) |
| reduced haematin | 1. <biochemistry> Compounds of iron complexed in a porphyrin (tetrapyrrole) ring that differ in side chain composition. Haems are the prosthetic groups of cytochromes and are found in most oxygen carrier proteins. 2. <prefix> haem-, eaning relating to blood. Origin: G. Haima (21 Jun 2000) |
| reduced haemoglobin | The form of Hb in red blood cells after the oxygen of oxyhemoglobin is released in the tissues. (05 Mar 2000) |
| reduced interarch distance | An occluding vertical dimension which results in an excessive interocclusal distance when the mandible is in rest position, and in a reduced interridge distance when the teeth are in contact. (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) |