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Related Experiment Videos

[Refraction by atrophine cycloplegia].

W Hunold1, G Auffarth

  • 1Marienhospital Aachen, Akademisches Lehrkrankenhaus, Rheinisch-Westfälischen Technischen Hochschule, BRD.

Ophthalmologica. Journal International D'Ophtalmologie. International Journal of Ophthalmology. Zeitschrift Fur Augenheilkunde
|January 1, 1991
PubMed
Summary

A new method for refractive measurements using atropine cycloplegia in children with squint is effective. A single 90-minute application provides accurate refractive data for eyeglass prescriptions, similar to longer treatments.

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Area of Science:

  • Ophthalmology
  • Pediatric Optometry

Background:

  • Accurate refractive measurements are crucial for diagnosing and managing refractive errors in children, particularly those with strabismus (squint).
  • Cycloplegic refraction is often necessary to overcome accommodative effort in pediatric eye examinations.

Purpose of the Study:

  • To evaluate a new, rapid method for refractive measurements using atropine cycloplegia in children with squint.
  • To compare the efficacy of a short-duration atropine instillation with a conventional, longer-duration regimen.

Main Methods:

  • Ninety children diagnosed with squint underwent refractive measurements using an autorefractor (Canon R 10).
  • Measurements were taken 90 minutes after administering two atropine eye drops and after a 3-day regimen of one drop three times daily (9 drops total per eye).

Related Experiment Videos

  • Results were compared with conventional objective refractometry using a hand refractometer (Rodenstock PR 50).

    • Main Results:

    • The new method demonstrated agreement in total refraction, spherical and cylindrical power, and cylinder axis in 80-90% of children after 3-day atropinization.
    • The additional cycloplegic effect of the 3-day atropine regimen was minimal (0.5 diopters) compared to the initial 2-drop application.
    • Refractive data obtained after a 90-minute waiting period showed high concordance with longer-term atropinization.

    Conclusions:

    • A 90-minute waiting period after administering two atropine eye drops is sufficient for accurate cycloplegic refractive measurements in children with squint.
    • This rapid method simplifies the refractive examination process for pediatric patients.
    • The findings support using the 90-minute atropine protocol for practical eyeglass prescription in children with squint.