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Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter
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Evaluating Three Different Methods of Determining Addition in Presbyopia.

Negareh Yazdani1, Abbas Azimi Khorasani1, Hanieh Mirhajian Moghadam2

  • 1Department of Optometry, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran; Refractive Errors Research Center, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran.

Journal of Ophthalmic & Vision Research
|September 14, 2016
PubMed
Summary

This study compared three methods for determining reading addition in presbyopes. The increasing plus lens (IPL) method is recommended for its speed and accuracy, despite slightly higher addition values.

Keywords:
Amplitude of AccommodationDynamic RetinoscopyIncreasing Plus LensPresbyopia

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Area of Science:

  • Ophthalmology
  • Optometry
  • Vision Science

Background:

  • Presbyopia affects individuals over 40, causing difficulty with near vision.
  • Accurate determination of reading addition is crucial for visual correction in presbyopic patients.

Purpose of the Study:

  • To compare three distinct methods for assessing reading addition in presbyopic individuals.
  • Evaluate the efficacy of amplitude of accommodation (AA), dynamic retinoscopy (DR), and increasing plus lens (IPL) methods.

Main Methods:

  • 81 presbyopic subjects aged 40-70 years participated.
  • Reading addition was measured using AA, DR, and IPL techniques.
  • Visual acuity at near was assessed for each method.

Main Results:

  • The increasing plus lens (IPL) method showed a tendency to overestimate reading addition compared to AA and DR.
  • Mean near additions were 1.31 D (AA), 1.68 D (DR), and 1.77 D (IPL).
  • IPL provided 20/20 near vision in 63.4% of participants.

Conclusions:

  • All three methods yielded comparable final addition values for presbyopia correction.
  • The IPL method is suggested as the most time-efficient approach for determining near addition.
  • IPL is recommended for presbyopic individuals, offering a range of ±0.50 D at 40 cm working distance.