Effect of orthokeratology on peripheral aberrations of the eye
Data(s) |
01/05/2009
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Resumo |
Purpose: To investigate the effect of orthokeratology on peripheral aberrations in two myopic volunteers. Methods: The subjects wore reverse geometry orthokeratology lenses overnight and were monitored for 2 weeks of wear. They underwent corneal topography, peripheral refraction (out to ±34° along the horizontal visual field) and peripheral aberration measurements across the 42° × 32° central visual field using a modified Hartmann-Shack aberrometer. Results: Spherical equivalent refraction was corrected for the central 25° of the visual fields beyond which it gradually returned to its preorthokeratology values. There were increases in axial coma, spherical aberration, higher order root mean square aberrations, and total root-mean-squared aberrations (excluding defocus). The rates of change of vertical and horizontal coma across the field changed in sign. Total root mean square aberrations showed a quadratic rate of change across the visual field which was greater subsequent to orthokeratology. Conclusion: Although orthokeratology can correct peripheral relative hypermetropia it induces dramatic increases in higher-order aberrations across the field |
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application/pdf |
Identificador | |
Publicador |
Lippincott, Williams & Wilkins |
Relação |
http://eprints.qut.edu.au/29559/1/29559.pdf DOI:10.1097/OPX.0b013e31819fa5aa Mathur, Ankit & Atchison, David (2009) Effect of orthokeratology on peripheral aberrations of the eye. Optometry and Vision Science, 86(5), pp. 476-484. |
Direitos |
Copyright 2009 American Academy of Optometry. Copyright American Academy of Optometry. Unauthorised reproduction of this article is prohibited. |
Fonte |
Faculty of Health; Institute of Health and Biomedical Innovation; School of Optometry & Vision Science |
Palavras-Chave | #111301 Ophthalmology #111303 Vision Science #Aberrations #Coma #Corneal refractive surgery #corneal topography #myopia #orthokeratology #Peripheral aberrations #Peripheral Ocular aberrations #Peripheral refraction |
Tipo |
Journal Article |