Refractive changes following instillation of 0.5% tropicamide in myopic schoolchildren

Satoshi Hasebe, Manabu Miyata, Ichiro Hamasaki, Shuhei Kimura, Jyunko Suemaru, Hiroshi Ohtsuki

Research output: Contribution to journalArticle

Abstract

Purpose: To establish a diagnostic criteria to detect spasm of accommodation in myopic school-children by instillating tropicamide ophthalmic solution. Cases and Method: This study involved 86 schoolchildren between 6 and 12 years of age. All were myopic, ranging from -1.25D to -6.25D. We used Mydrin P® which contains 0.5% tropicamide and 0.5% phenylephrine. Power of refraction was measured by subjective and objective means before and after intillation. Results: After instillation, myopia decreased by 0.17±0.32D when measured by red-green duochrome test and by 0.30±0.27D by infrared automated refractometer. Conclusion: In order to diagnose pseudomyopia with spasm of accommodation, the power of myopia measured by subjective refraction has to be reduced by more than 0.8 diopters, or 95% confidence interval observed in myopic schoolchildren.

Original languageEnglish
Pages (from-to)581-585
Number of pages5
JournalJapanese Journal of Clinical Ophthalmology
Volume60
Issue number4
Publication statusPublished - 2006

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Tropicamide
Myopia
Spasm
Ophthalmic Solutions
Phenylephrine
Confidence Intervals

ASJC Scopus subject areas

  • Ophthalmology

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Refractive changes following instillation of 0.5% tropicamide in myopic schoolchildren. / Hasebe, Satoshi; Miyata, Manabu; Hamasaki, Ichiro; Kimura, Shuhei; Suemaru, Jyunko; Ohtsuki, Hiroshi.

In: Japanese Journal of Clinical Ophthalmology, Vol. 60, No. 4, 2006, p. 581-585.

Research output: Contribution to journalArticle

Hasebe, Satoshi ; Miyata, Manabu ; Hamasaki, Ichiro ; Kimura, Shuhei ; Suemaru, Jyunko ; Ohtsuki, Hiroshi. / Refractive changes following instillation of 0.5% tropicamide in myopic schoolchildren. In: Japanese Journal of Clinical Ophthalmology. 2006 ; Vol. 60, No. 4. pp. 581-585.
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