斜视术后感染的危险因素及防治

斜视手术后感染是一种少见并发症,但影响术后恢复和手术效果。斜视术后感染常表现为角结膜炎、结膜下脓肿、Tenon囊脓肿、眼眶蜂窝织炎、眶周脓肿或眼内炎。感染类型、深度和部位决定了治疗方法。浅表感染外用抗生素治疗后恢复良好;脓肿需要切开引流以及全身使用抗生素;涉及深层组织的感染需要全身治疗;眼内炎可导致视力下降甚至失明,需要玻璃体注射抗生素或玻璃体切除术。

Sensory exotropia subsequent to senile cataract

To evaluate the phacoemulsification and intraocular lens implantation in patients with sensory exotropia subsequent to senile cataract. The authors prospectively studied the role of phacoemulsification and intraocular lens implantation on 25 patients by observing visual acuity, ocular alignment, binocular vision and diplopia pre-, 1 month post- and 3 months post-operation. The patients underwent follow-up for three months. Postoperatively, one patient had a corrected visual acuity of 20/50, and 24 patients had 20/40 or better. The ocular alignment, binocular vision and diplopia were resolved spontaneously. Phacoemulsification and intraocular lens implantation performed together is effective on sensory exotropia subsequent to senile cataract.

青光眼术后斜视6例分析

目的探讨青光眼术后斜视的临床表现、发病机制及预防。方法对青光眼术后斜视的患者除常规眼部检查外,还要进行屈光、眼肌运动、复像检查,并用三棱镜及同视机检查眼位及融合功能,部分患者行牵拉试验。结果6例斜视患者受累肌多为术眼垂直肌,2例合并上睑下垂,1例牵拉试验呈阳性反应,3例患者3周内治愈,3例则经手术后眼位矫正而改善症状。结论青光眼术后部分患者可并发斜视,其发病机制可能与药物的肌毒性作用有关,大部分患者可恢复正常。

外斜弱视的多导VEP研究

对20例恒定性外斜(简称恒斜)弱视和16例间歇性外斜(简称间斜)弱视进行了多导VEP研究。结果表明,所有36例病人在刺激弱视眼所引起的VEP振幅,均明显低于健眼,而且潜伏期亦延长,当以全视野刺激双眼所引起的VEP与刺激单(健)眼相比,恒斜弱视组不存在VEP总和现象,而间斜弱视组则有较弱的VEP总和。分别以半视野刺激时,部分间斜弱视病人的弱视眼、健眼以及恒斜弱视的健眼均出现颞侧视网膜抑制现象,而恒斜弱视眼的这种半侧视网膜抑制现象则不明显。