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Donnie Akers, George Asimellis, Lefteris Karageorgiadis, Costas Katsoulos, Nikos Vasileiou; Wavefront-customized soft contact lenses for high-order aberration correction in normal eyes. Invest. Ophthalmol. Vis. Sci. 2017;58(8):1276. doi: https://doi.org/.
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© ARVO (1962-2015); The Authors (2016-present)
To evaluate the change in spherical aberration and coma in normal eyes, by employing wavefront-customized hydrogel contact lenses.
Seven customized, computerized numerically controlled lathe cut hydrogel contact lenses were designed and fabricated incorporating specific amounts of spherical aberration (SA) and coma. Each lens was designed to have only one non-zero Zernike aberration coefficient. The lenses were fitted on three normal subjects (total three eyes). Wavefront aberrometry was performed pre- (naked eyes) and post- fitting.
Regarding SA, modulation of the aberration was achieved in a consistent fashion towards the same polarity of the aberration, ranging from ~60% to +200% of the intended change. Regarding coma, lenses that employed coma of the same sign with the subject's coma, increased the coma of the eye-lens combination. Lenses with opposite coma than the ocular coma decreased the on-eye aberration coma, and even reversed it.
Modulation of on-eye spherical aberration and coma in a predictable manner employing custom-designed hydrogel lenses was achieved in normal eyes. Such lenses can be very useful in normal eyes with subtle high-order aberrations. Wavefront correction dispensing can be personalized, based on the design of customized contact lenses.
This is an abstract that was submitted for the 2017 ARVO Annual Meeting, held in Baltimore, MD, May 7-11, 2017.
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