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March 21, 2026American journal of optometry and physiological optics

Evaluating Soft Contact Lens Quality

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Authors

ESEric J. SeibelWTWILLIAM R. TRILSCHDLDeborah Lee

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Overview

Controlled study compares quality metrics of aphakic contact lenses, suggesting specific brands excel in performance.

Key Points

  • The aim is to compare quality control metrics among different aphakic contact lens brands.
  • Compared six brands of aphakic contact lenses purchased new at +13.00 D power.
  • Assessed 120 lenses (20 per brand) for various performance metrics.
  • Measured parameters included diameter, front sagittal height, power, image quality, and edge design.
  • Calculated base curve radius using lens cross-sectioning techniques.
  • Analyzed results using American National Standards Institute tolerances as a benchmark.
  • Brands A and B achieved the highest quality ratings based on the established criteria.
  • Lenses were ranked and grouped based on precision and accuracy of their measurements.
  • All lens brands were graphically represented for easy comparison against ANSI standards.

Cite This Study

Seibel et al. (1988) studied this question.

synapsesocial.com/papers/69be36766e48c4981c675639https://doi.org/10.1002/j.2330-9512.1988.tb01511.x
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