limbal blanching

blanching, limbal 

A whitening of the limbal area due to pressure from the edge of a soft lens which fits too tightly. See steep lens; limbus; push-up test.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann
References in periodicals archive ?
The key elements for determining the extent of chemical ocular injury and prognosis consist of the total area of the corneal epithelial defect, the area of the conjunctival epithelial defect, the amount of clockhours or degrees of limbal blanching, the area and density of corneal opacification, and increased IOP on presentation and loss of lens clarity [1,15-17, 33].