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首页> 外文期刊>Clinical and experimental ophthalmology >Pupil dilation using a pledget sponge: a randomized controlled trial.
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Pupil dilation using a pledget sponge: a randomized controlled trial.

机译：使用棉絮海绵进行瞳孔扩张：一项随机对照试验。

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BACKGROUND: To show that a pledget soaked in mydriatics and placed in the lower conjunctival fornix is as effective as drops in providing mydriasis for cataract surgery. METHODS: A randomized, masked, controlled trial of 56 patients assigned to either a pledget group (n=25) or a control eye drops group (n=31) was carried out. Controls had the routine practice of repeated topical mydriatic drops: tropicamide, phenylepherine and atropine. The trial group had a 3-mm pledget trimmed, soaked in mydriatics and placed in the inferior fornix for 20 min. Pupil diameter was measured using a photographic technique with a standard scale shown in each picture. Two masked observers measured the pupils using the scale of the ruler in the developed photograph. All patients completed a 0-10 stinging score prior to surgery. RESULTS: There were no complications. The mean pupil diameter in the control group was 7.23 (6.91-7.94 95% confidence intervals [CI]) and 7.44 (6.96-7.92 95% CI) in the pledget group. There was no statistically significant difference in pupil diameter between the two groups: difference between means 0.21 (-0.32 to 0.75 95% CI) and Student's t-test of the difference between means (t=0.8 and two-tailed) probability P=0.43. There was no significant difference in the stinging scores: Mann-Whitney test P=0.69. CONCLUSION: The use of a pledget cellulose sponge to deliver mydriatics prior to cataract surgery is as effective as the conventional method of repeated drop administration and was not associated with any adverse effects.
机译：背景：显示浸入散瞳并放在结膜下穹for下的小棉片与滴眼液在为白内障手术提供散瞳方面一样有效。方法：进行了一项随机，掩盖，对照试验，共纳入56名患者，这些患者被分配到小盲组（n = 25）或对照组滴眼液组（n = 31）。对照组的常规做法是反复使用局部散瞳滴剂：托吡卡因，苯肾上腺素和阿托品。试验组修剪了3毫米的小块，浸入散瞳，并放在下穹ni 20分钟。使用照相技术以每幅图中所示的标准比例测量瞳孔直径。两名蒙面的观察者使用显影照片中标尺的刻度测量了瞳孔。所有患者在手术前均获得0-10的刺痛分数。结果：无并发症。对照组中的平均瞳孔直径为7.23（6.91-7.94 95％置信区间[CI]）和7.44（6.96-7.92 95％CI）。两组之间的瞳孔直径没有统计学上的显着差异：均值之间的差异0.21（-0.32至0.75 95％CI）和均值之间差异的学生t检验（t = 0.8和双尾）概率P = 0.43 。刺痛分数没有显着差异：曼惠特尼检验P = 0.69。结论：在白内障手术前使用棉絮状纤维素海绵递送散瞳药与重复滴注常规方法一样有效，并且没有任何不良影响。

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