Analysis of head position used by myopes and emmetropes when performing a near-vision reading task

@article{Hartwig2011AnalysisOH,
  title={Analysis of head position used by myopes and emmetropes when performing a near-vision reading task},
  author={Andreas Hartwig and Emma Gowen and William Neil Charman and Hema Radhakrishnan},
  journal={Vision Research},
  year={2011},
  volume={51},
  pages={1712-1717}
}

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References

SHOWING 1-10 OF 44 REFERENCES
Accommodation, pupil diameter and myopia
  • W. Charman, H. Radhakrishnan
  • Medicine
    Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians
  • 2009
TLDR
The aim of this study was to explore the possibilities that pupil diameters with relaxed accommodation were larger, and that accommodative miosis was weaker, in the myopic group, and those subjects whose response/stimulus curves had a higher slope tended to display greater accommodatives miosis, irrespective of their refractive error.
Dynamics of accommodative facility in myopes.
TLDR
During distance accommodation facility testing, myopes exhibited a lower velocity of accommodation and disaccommodation, which led to a lower distance accommodative facility rate, and for near facility measurements, however, although velocity of disac commodation was lower in myopes, velocity of accommodation was found to be similar in the two refractive groups.
Role of near work in myopia: findings in a sample of Australian school children.
TLDR
Although myopia was not significantly associated with time spent in near work after adjustment for other factors, there were significant independent associations with close reading distance and continuous reading.
The Effect of Accommodation on Ocular Shape
  • T. W. Walker, D. Mutti
  • Medicine
    Optometry and vision science : official publication of the American Academy of Optometry
  • 2002
TLDR
Ocular shape was assessed before, during, and after a period of sustained nearwork to determine whether accommodation affects ocular shape, and tension on the choroid and choroidal hysteresis may play a role in influencing ocularshape.
Aniso‐accommodation as a possible factor in myopia development
  • W. Charman
  • Medicine
    Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians
  • 2004
TLDR
It is argued that the defocused retinal imagery involved in reading and similar tasks could be a factor in myopia development, particularly in children who adopt unfavourable reading postures.
The mystery of myopia.
TLDR
More research is needed into the introduction into schools of better tables, better lighting, more breaks and more sport has not only benefited the general health of children, mentally as well as physically, but has also decreased the development and progression of myopia.
The eye in focus: accommodation and presbyopia
  • W. Charman
  • Medicine
    Clinical & experimental optometry
  • 2008
TLDR
A review of the available evidence on age‐related change in the lens, capsule, ciliary body and other relevant ocular structures confirms that geometric and viscoelastic lenticular changes play major roles in the progressive loss of accommodation.
Parental myopia, near work, school achievement, and children's refractive error.
TLDR
Hredity was the most important factor associated with juvenile myopia, with smaller independent contributions from more near work, higher school achievement, and less time in sports activity.
...
1
2
3
4
5
...