| pillar of iris | The network of fibres (pectinate ligaments) at the iridocorneal angle between the anterior chamber of the eye and the venous sinus of the sclera; it contains spaces between the fibres that are involved in drainage of the aqueous humor, and is composed of two portions: the corneoscleral part, the part attached to the sclera, and the uveal part, the part attached to the iris. Synonym: reticulum trabeculare sclerae, Gerlach's valvula, Hueck's ligament, ligamentum annulare bulbi, pectinate ligaments of iridocorneal angle, pillar of iris, trabecular meshwork, trabecular network, trabecular zone. (05 Mar 2000) |
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| plateau iris | In angle-closure glaucoma, a flat appearance of the iris rather than a forward convexity. (05 Mar 2000) |
| posterior surface of iris | The posterior surface of the iris. Synonym: facies posterior iridis. (05 Mar 2000) |
| crypts of iris | Pits near the pupillary margin of the anterior surface of the iris. Spaces in the anterior iris stroma through which the aqueous washes with every pupillary movement. (05 Mar 2000) |
| herpes iris | Concentric rings of erythema varying in intensity, characteristic of erythema multiforme. Synonym: herpes iris. (05 Mar 2000) |
| pupillary border of iris | The inner border of the iris that forms the edge of the pupil. Synonym: margo pupillaris iridis, pupillary margin of iris. (05 Mar 2000) |
| pupillary margin of iris | The inner border of the iris that forms the edge of the pupil. Synonym: margo pupillaris iridis, pupillary margin of iris. (05 Mar 2000) |
| stroma of iris | The delicate vascular connective tissue that lies between the anterior surface of the iris and the pars iridica retinae. Synonym: stroma iridis. (05 Mar 2000) |
| iris | Origin: L. Iris, iridis, the goddess, Gr, the rainbow, iris of the eye, the plant Iris. Cf. Orris. 1. The goddess of the rainbow, and swift-footed messenger of the gods. 2. The rainbow. 3. An appearance resembling the rainbow; a prismatic play of colours. 4. <anatomy> The contractile membrane perforated by the pupil, and forming the coloured portion of the eye. See Eye. 5. <botany> A genus of plants having showy flowers and bulbous or tuberous roots, of which the flower-de-luce (fleur-de-lis), orris, and other species of flag are examples. Source: Websters Dictionary (01 Mar 1998) |
| iris bicolor | A variegated or two-coloured iris. Synonym: monocular heterochromia. (05 Mar 2000) |
| iris bombe | A condition occurring in posterior annular synechia, in which an increase of fluid in the posterior chamber causes a forward bulging of the peripheral iris. (05 Mar 2000) |
| iris dehiscence | A defect of the eye characterised by multiple holes in the iris. (05 Mar 2000) |
| iris diaphragm | <microscopy> A diaphragm with thin metal leaves so arranged that the rotation of an actuating lever varies the diameter. (05 Aug 1998) |
| iris diseases | Diseases, dysfunctions, or disorders of or located in the iris. (12 Dec 1998) |
| iris frill | The sinuous, scalloped line in the iris that divides the central pupillary zone from the peripheral ciliary zone and marks the embryonic site of the atrophied minor vascular circle of the iris. Synonym: iris frill. (05 Mar 2000) |