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白内障也会突然视力下降吗?

来源:华人健康网 | 发布时间:2010-09-09 16:45:44 | www.chinesejk.com

  一般白内障的症状是视力逐渐下降,最后失明,整个过程中无眼疼等症状。如果患者突然感觉视力明显下降而没有疼痛,应考虑可能是眼底有了病变,比如:眼底出血、视神经乳头病变或视网膜脱离等,必须马上去看眼科医生不要误认为是白内障所致。

  在老年性皮质性白内障发展过程中,有一段过程医学上叫膨胀期,在此时期,晶体内有较多的水份积聚,使其急剧肿胀,体积增大,前房变浅,病人此时可以感到视力下降速度加快,个别病人可以由于晶状体膨胀、前房变浅等原因,引起眼压高而导致青光眼,病人可感到眼红、眼痛、伴头痛、恶心、呕吐等全身症状、视力急剧下降甚至失去光感,这种青光眼如果治疗不及时,将造成永久性失明,即使再行白内障手术也无法挽救视力。

(编辑:阳阳 )

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