期刊
POLYMERS
卷 14, 期 23, 页码 -出版社
MDPI
DOI: 10.3390/polym14235321
关键词
wavefront sensing; adaptive sensors; optical aberrations; Shack-Hartmann sensor; wavefront-guided laser refractive surgery; ophthalmology
Adaptive optics is used to continuously measure and correct ocular aberrations, improving vision. The combination of wavefront technology and adaptive optics systems allows for preoperative evaluation of refractive surgical procedures and guidance for surgeons in choosing the appropriate parameters. This is important for improving patient vision quality and meeting clinical needs.
Adaptive optics (AO) is employed for the continuous measurement and correction of ocular aberrations. Human eye refractive errors (lower-order aberrations such as myopia and astigmatism) are corrected with contact lenses and excimer laser surgery. Under twilight vision conditions, when the pupil of the human eye dilates to 5-7 mm in diameter, higher-order aberrations affect the visual acuity. The combined use of wavefront (WF) technology and AO systems allows the pre-operative evaluation of refractive surgical procedures to compensate for the higher-order optical aberrations of the human eye, guiding the surgeon in choosing the procedure parameters. Here, we report a brief history of AO, starting from the description of the Shack-Hartmann method, which allowed the first in vivo measurement of the eye's wave aberration, the wavefront sensing technologies (WSTs), and their principles. Then, the limitations of the ocular wavefront ascribed to the IOL polymeric materials and design, as well as future perspectives on improving patient vision quality and meeting clinical requests, are described.
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