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J Cataract Refract Surg. 1999 Dec;25(12):1679-81.

Sterile interface keratitis associated with micropannus hemorrhage after laser in situ keratomileusis.

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  • 1Casey Eye Institute, Oregon Health Sciences University, Portland 97201-4197, USA.


Numerous etiologies have been suspected to lead to sterile interface keratitis after laser in situ keratomileusis. This tan interface haze with a rippled appearance has been called Sands of the Sahara. We present 2 cases in which red blood cells entered the interface after a small hemorrhage from peripheral corneal vascularization during the microkeratome pass. Although this bleeding was controlled and all visible blood cells were removed at surgery, both patients developed the appearance of a focal interface keratitis on the first postoperative day.

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