limbus

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Related to Corneal limbus: trephine

limbus

[′lim·bəs]
(biology)
A border clearly defined by its color or structure, as the margin of a bivalve shell or of the cornea of the eye.
References in periodicals archive ?
However, given that the corneal limbus, where the corneal progenitor/stem cells reside, is densely innervated, delayed corneal epithelial wound healing may result, at least in part, due to impaired corneal progenitor/stem cells in diabetic corneas.
This is a promising discovery as the corneal limbus is one of the most accessible regions of the human eye and it represents 90 per cent of the thickness of the front eye wall.
For preoperative astigmatism greater than 1.2 D, a 3.2 mm incision at the corneal limbus is insufficient and a wider incision or an additional incision is required.
In addition, since riboflavin increases UVA absorption into the cornea as a photosensitizer, we tested whether the protection of corneal limbus from riboflavin exposure during CXL might prevent the potential toxicity of UVA on LESCs [5, 12].
Under the ophthalmic microscope, an Algerbrush II rust ring remover (Alger Co., Lago Vista, TX, USA) was used to scrape the epithelia in the region 2 mm away from the central cornea of each mouse according to the indentation position, with the corneal epithelia at the corneal limbus left over.
His right cornea had a 2 x 2 mm inferotemporal ulcer surrounded by a dense infiltrate that compromised all the way but 1.5 mm before the corneal limbus. Corneal thinning at the site of ulcer was about 50%.