Descemet's membrane


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Descemet's membrane

n. Descemet, membrana de; lámina elástica posterior de la córnea.
References in periodicals archive ?
Not only are the genetic defects better defined, but also patient's corneas show specific histopathological patterns including greater Descemet's membrane thickening and types of guttae.
11) As age advances, this physiological function can become impaired causing the endothelium to release an abnormal basement membrane material which forms nodules on Descemet's membrane that are known as guttata.
Acute corneal hydrops is a stromal oedema caused by aqueous penetration through breaks in Descemet's membrane.
These opacities (to not extend to the limbus but may extend deep into the stroma and as far as Descemet's membrane.
Folds in Descemet's membrane are characteristic of corneal oedema, as the cornea can only swell posteriorly, thus reducing the posterior corneal surface area, which therefore suggests that an increase in CCT may be due to higher water content within the cornea.
The structures visible in a wide angle are (from iris to cornea) (a) the ciliary body (CP): this appears slightly darker than the iris itself, (b) the scleral spur (SS): a white band just above the ciliary body, (c) the trabecular meshwork (TM): this can be a whitish-grey or pink colour, and (d) Schwalbe's line (SL): this is at the edge of Descemet's membrane.
A detachment or tear of Descemet's membrane is caused by improper insertion of an instrument through the incision so that it passes between Descemet's membrane and the stroma causing the break.