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Related Experiment Videos

[The Opacity Lens Meter 701: clinical experiences].

C Messmer1, K Yao, D Stümpfig

  • 1Universitäts-Augenklinik, Basel.

Klinische Monatsblatter Fur Augenheilkunde
|May 1, 1990
PubMed
Summary

Cataract lens opacity directly impacts visual field tests. Measuring stray light from cataracts accurately predicts visual field changes after surgery.

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[Dysphotopsia due to a manufacturing error in an intraocular lens].

Klinische Monatsblatter fur Augenheilkunde·2014

Area of Science:

  • Ophthalmology
  • Vision Science

Context:

  • Cataracts significantly impair vision by causing lens opacity.
  • Visual field testing is crucial for assessing vision loss.

Purpose:

  • To quantify the relationship between lens opacity and visual field deficits.
  • To evaluate the effectiveness of stray light measurement in predicting visual field changes post-cataract surgery.

Summary:

  • A study involving 11 patients before and after cataract extraction demonstrated a strong correlation between lens opacity and visual field alterations.
  • The Opacity Lens Meter 701 effectively measured lens opacity.
  • Measurement of stray light backscattered from the cataractous lens allowed for quantitative prediction of visual field impact.

Impact:

  • Provides a method for predicting visual field outcomes in cataract patients.
  • Highlights the importance of stray light measurement in ophthalmological assessments.
  • Aids in patient counseling and surgical planning for cataract removal.

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