title: Stabilized high-accuracy correction of ocular aberrations with liquid crystal on silicon spatial light modulator in adaptive optics retinal imaging system.
abstract: We studied the long-term optical performance of an adaptive optics scanning laser ophthalmoscope that uses a liquid crystal on silicon spatial light modulator to correct ocular aberrations. The system achieved good compensation of aberrations while acquiring images of fine retinal structures, excepting during sudden eye movements. The residual wavefront aberrations collected over several minutes in several situations were statistically analyzed. The mean values of the root-mean-square residual wavefront errors were 23-30 nm, and for around 91-94% of the effective time the errors were below the Marechal criterion for diffraction limited imaging. The ability to axially shift the imaging plane to different retinal depths was also demonstrated.
authors.affiliation: Central Research Laboratory, Hamamatsu Photonics KK, 5000 Hirakuchi, Hamakita-Ku, Hamamatsu-City, Shizuoka 434-8601, Japan. huanghx@crl.hpk.co.jp
authors.forename: Hongxin
authors.initials: H
authors.lastname: Huang
authors.forename: Takashi
authors.initials: T
authors.lastname: Inoue
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Tanaka
mesh_terms: D004867:Equipment Design; D005133:Eye Movements; D006801:Humans; D007908:Lens, Crystalline / Q000502:physiology; D050866:Liquid Crystals; D015233:Models, Statistical; D055095:Optics and Photonics / Q000379:methods; D015203:Reproducibility of Results; D012160:Retina / Q000502:physiology*; D012825:Silicon / Q000737:chemistry*
chemical_list: D012825:Silicon