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要約 目的:乳児に対するICare®眼圧計の使用結果の報告。対象と方法:緑内障の疑いがあるか,全身疾患で小児科から紹介された1歳未満の乳児18例36眼を対象とした。トリクロホスナトリウムシロップを内服させ,睡眠中に上半身を起こした状態でICare®眼圧計で眼圧を測定し,続いて仰臥位でPerkins圧平眼圧計で眼圧を測定した。結果:ICare®眼圧計とPerkins圧平眼圧計での眼圧は,それぞれ6~37mmHg(平均14.6±7.0mmHg)と8~42mmHg(平均17.1±7.0mmHg)であり,有意差があった(p<0.05)。両測定値の差は-3~7mmHg(平均2.4±2.0mmHg)であり,31眼でPerkins圧平眼圧計による値が高かった。両眼圧計による測定値には正の相関があり,単回帰分析でy=0.9559x+3.0906の1次式が成立した。結論:Perkins圧平眼圧計で眼圧値がやや高かったのは,仰臥位で眼圧が上昇した可能性がある。ICare®は乳児に対する眼圧スクリーニングに有用である。
Abstract. Purpose:To evaluate the ICare® tonometer for use in infants. Cases and Method:This study was made on 36 eyes of 18 infants under one year of age. They were either suspected for glaucoma or were referred to us for systemic problems. All were given peroral triclofos sodium for sedation. Intraocular pressure(IOP)was measured in sitting position by ICare® tonometer and in recumbent position by Perkins tonometer. Results:IOP by ICare® ranged from 6 to 37 mmHg,average 14.6±7.0 mmHg. IOP by Perkins tonometer ranged from 8 to 42 mmHg,average 17.1±7.0 mmHg. The difference was significant(p<0.05). IOP values by the two methods differed by -3 to 7 mmHg,average 2.4±2.0 mmHg. IOP by Perkins tonometer was higher in 31 eyes. IOP values by the two tonometers were positively correlated,with simple regression analysis showing a linear equation of y=0.9559x+3.0906. Conclusion:IOP value by Perkins tonometer was higher possibly because of measurement in recumbent position. ICare® tonometer promises to be of value as a tool in screening in infants.
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