Ocular findings in volcanic fog induced conjunctivitis.

Hawaii medical journal Pub Date : 2011-12-01

Jorge G Camara, John Kenneth D Lagunzad

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Abstract

Objective: To describe the ocular signs and symptoms of patients complaining of eye irritation due to volcanic fog (vog).

Methods: The study utilized a non-comparative, retrospective chart review of 30 patients who had a chief complaint of eye irritation, which the subjects attributed to vog. Ocular signs and symptoms are described and related to the ambient concentration of sulfur dioxide (SO(2)), particulate matter sized 2.5 microns (PM(2.5)), and vog visibility in O'ahu during the period of the study.

Results: Ocular signs noted were conjunctival injection (100%), clear mucous discharge (100%), papillary reaction (100%), punctal edema (80%), eyelid swelling (73.3%) and chemosis (63.3%). Ocular symptoms were itchiness (100%), foreign body sensation (100%), tearing (96.6%) and burning sensation (90%). All patients had concurrent respiratory symptoms. During the period of study, the highest 24-hour average concentration of particulate matter sized 2.5 microns (PM(2.5)) was 49.04 µg/m(3) and vog was visually present.

Conclusions: Patients complaining of eye irritation due to vog have observable ocular signs and symptoms.

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火山雾性结膜炎的眼部表现。

目的:描述因火山雾(vog)引起眼部刺激的患者的眼部体征和症状。方法:本研究对30例以眼部刺激为主诉的患者进行了非比较、回顾性的图表回顾，这些患者被认为是vog引起的。描述了眼部体征和症状，并与研究期间O'ahu的环境二氧化硫浓度(SO(2))、粒径为2.5微米的颗粒物(PM(2.5))和vog能见度有关。结果:眼部征象为结膜注射(100%)、透明黏液排出(100%)、乳头状反应(100%)、点状水肿(80%)、眼睑肿胀(73.3%)、化脓(63.3%)。眼部症状为瘙痒(100%)、异物感(100%)、流泪(96.6%)、烧灼感(90%)。所有患者均伴有呼吸道症状。在研究期间，2.5微米颗粒物(PM(2.5))的最高24小时平均浓度为49.04µg/m(3)， vog肉眼可见。结论:vog引起眼刺激的主诉患者有明显的眼部体征和症状。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Hawaii medical journal

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