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British and Irish Orthoptic Journal
Article . 2016 . Peer-reviewed
License: CC BY
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British and Irish Orthoptic Journal
Article
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A comparison of the conventional and modified push-up methods of measuring the near point of accommodation

Authors: Esmail, H.; Arblaster, G.;

A comparison of the conventional and modified push-up methods of measuring the near point of accommodation

Abstract

Aim: To compare the subjective near point of accommodation measurement with the RAF rule using the conventional (clear to blur) and modified (blur to clear) push-up methods. Methods: Both methods of testing the near point of accommodation were carried out uniocularly and binocularly in 32 visually normal participants (mean age: 20.08) with a range of visual experience. Results: The modified push-up method (blur to clear) gave a near point of accommodation further away from the subject. A difference of 0.51 cm in the right eye, 0.61 cm in the left eye and 1.05 cm binocularly was found between the two methods which was statistically significant ( p < 0.05). No difference was found between naı¨ve and expert groups ( p < 0.05). However, most participants reported that the end point was easier to judge with the modified method. Conclusion: Despite being significantly different statistically, the difference between the two methods measuring the near point of accommodation with the RAF rule was small. The findings support the use of the modified method of measuring the near point of accommodation with the RAF rule, rather than the conventional method.

Related Organizations
Keywords

Accommodation, Ophthalmology, Blur to clear, Clear to blur, Conventional push-up method, Modified push-up method, Near point of accommodation, RE1-994, RAF rule

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
Average
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gold