有(you)人一旦(dan)眼(yan)(yan)睛(jing)發(fa)紅(hong)(hong)(hong)(hong),就懷疑是(shi)(shi)(shi)否(fou)患(huan)了(le)“紅(hong)(hong)(hong)(hong)眼(yan)(yan)病”,其實眼(yan)(yan)睛(jing)紅(hong)(hong)(hong)(hong)只是(shi)(shi)(shi)一種癥狀,紅(hong)(hong)(hong)(hong)眼(yan)(yan)病常(chang)常(chang)眼(yan)(yan)睛(jing)紅(hong)(hong)(hong)(hong),但(dan)眼(yan)(yan)睛(jing)紅(hong)(hong)(hong)(hong)不一定就是(shi)(shi)(shi)患(huan)了(le)紅(hong)(hong)(hong)(hong)眼(yan)(yan)病。
造成眼(yan)睛紅的(de)原因是多種多樣的(de)。由于球(qiu)結膜暴露于眼(yan)球(qiu)的(de)前面,很(hen)容易遭受外(wai)傷和微(wei)生物(wu)的(de)侵襲。
常見引起眼睛紅(hong)的(de)原因是:
1、眼(yan)部的炎(yan)癥,如紅眼(yan)病、角膜炎(yan)、麥粒腫等;過敏(min)反(fan)應也會引(yin)起眼(yan)睛紅;
2、如(ru)對某些(xie)眼藥(yao)過敏引起(qi)的過敏性結膜炎(yan),以及(ji)春(chun)季結膜炎(yan),還可同時伴有眼瞼水腫(zhong)、刺痛等癥(zheng)狀;
3、眼部的手術(shu)、外傷也(ye)可(ke)造(zao)成眼睛紅,可(ke)為充(chong)血性的,也(ye)可(ke)為出血性的;
4、如發熱、哭泣或(huo)者空氣污染的刺激(ji)也可引起球(qiu)結膜充血而表現(xian)為眼睛發紅;
5、劇烈的咳嗽,嘔吐,用力揉研究能夠可致使結(jie)膜小血管(guan)破裂、出血,表現為球(qiu)結(jie)膜下點狀(zhuang)(zhuang)或片(pian)狀(zhuang)(zhuang)發紅(hong),顏色(se)依(yi)出血量和時間(jian)呈現暗紅(hong)色(se)或鮮紅(hong)色(se)。
眼(yan)睛紅的同(tong)時如果伴隨視(shi)力的改(gai)變,意味著眼(yan)病的部(bu)(bu)位在眼(yan)角膜或(huo)眼(yan)球(qiu)的深(shen)部(bu)(bu),如視(shi)力不受影(ying)響(xiang),意味著眼(yan)病的部(bu)(bu)位在眼(yan)的表層(ceng)或(huo)僅(jin)是單純的球(qiu)結膜下出血。