Villaseca A
Am J Ophthalmol. 1977 Feb;83(2):188-90. doi: 10.1016/0002-9394(77)90615-8.
Minute multiple dust particles enclosed in long stick mucous filaments may remain hidden in the recesses of the upper fornix for considerable periods of time. They produce the subjective sensations of grittiness or smarting. After repeated maneuvers of eversion of the upper eyelid and blinking, the nasal end of the mucosities lodged in the upper fornix may become visible over the plica semilunaris or caruncle. When drawing them from the lacus lacrimalis with thin moist cotton-tipped applicators, long mucous filaments will be seen gliding out from under the nasal end of the upper eyelid.
包裹在长条形粘性细丝中的微小多尘颗粒可能会在相当长的一段时间内隐藏在上穹窿的凹陷处。它们会产生沙粒感或刺痛的主观感觉。在上睑反复外翻和眨眼后，位于上穹窿的粘液性物质的鼻端可能会在半月襞或泪阜上方可见。用细湿棉签从泪湖中将它们取出时，可以看到长长的粘液细丝从上睑鼻端下方滑出。
