Pérez Blázquez Eugenio
Servicio de Oftalmología, Hospital Universitario 12 de Octubre, Avda. de Córdoba s/n, 28041 Madrid, Spain.
Rev Iberoam Micol. 2006 Mar;23(1):16-9. doi: 10.1016/s1130-1406(06)70006-7.
Invasive Candida (IC) infection is the most common cause of endogenous endophthalmitis. Ocular candidiasis develops within three days and at least two weeks of fungemia. There are two characteristic ocular signs: Candida chorioretinitis defined as retina and choroid lesions without vitreal involvement, and Candida endophthalmitis defined as chorioretinitis with extension into the vitreous with characteristic fluffy balls. The most common initial visual symptoms are blurred vision and floaters. Amphotericin B, fluconazole and voriconazole are effective in the treatment of chorioretinitis; however, when vitreous is involved vitrectomy seems necessary. Early antifungal systemic treatment at first evidence of infection in patients at risk of IC, appears to decrease dramatically the incidence of endogenous fungal endophthalmitis, probably healing minimal chorioretinal infections. Routine ophthalmoscopic examination seems of little value in patients with positive blood culture, with early implementation of antifungal treatment, without symptoms of ocular infection and without impairment of the level of consciousness during the episode. However, periodic ophthalmoscopic examination should be performed in children with candidemia and critically ill patients with documented deep Candida infection.
侵袭性念珠菌(IC)感染是内源性眼内炎最常见的病因。眼部念珠菌病在菌血症发生后的三天内及至少两周内发展。有两个特征性眼部体征:念珠菌性脉络膜视网膜炎定义为视网膜和脉络膜病变而无玻璃体受累,念珠菌性眼内炎定义为脉络膜视网膜炎并蔓延至玻璃体,伴有特征性的绒毛球。最常见的初始视觉症状是视力模糊和飞蚊症。两性霉素B、氟康唑和伏立康唑对脉络膜视网膜炎有效;然而,当玻璃体受累时,玻璃体切除术似乎必不可少。在有IC感染风险的患者首次出现感染迹象时尽早进行抗真菌全身治疗,似乎可显著降低内源性真菌性眼内炎的发生率,可能治愈轻微的脉络膜视网膜感染。对于血培养阳性、早期实施抗真菌治疗、无眼部感染症状且在发病期间意识水平无损害的患者,常规眼底检查似乎价值不大。然而,对于患念珠菌血症的儿童和有深部念珠菌感染记录的重症患者,应定期进行眼底检查。