title: Adaptive optics dioptric scanning ophthalmoscope with a wider field of view similar to those of normal ophthalmoscopes.
abstract: We introduce a newly developed adaptive optics dioptric scanning ophthalmoscope (AO-DSO) in which all powered optical parts were refractive lenses instead of concave or convex mirrors. By designing dioptric optics, we were able to achieve a compact instrument with a 10 deg field of view (FOV10) and 1.5 deg field of view (FOV1.5) high-resolution imaging. Although the resolution of FOV10 was sacrificed because of the variation of aberrations of the eye over the 10 deg field, our system works with AO in the case of FOV1.5 and can be used as a scanning laser ophthalmoscope with good optical slicing in the case of FOV10. To test the ability of the AO-DSO, we performed imaging on a normal subject and on a patient with occult macular dystrophy.
authors: Optics Lab, Topcon Corp., 75-1Hasunumacho, Itabashi, 174-8580, Japan.
authors: Tatsuo
authors: T
authors: Yamaguchi
authors: Toshifumi
authors: T
authors: Mihashi
authors: Yoshiyuki
authors: Y
authors: Kitaguchi
authors: Hiroyuki
authors: H
authors: Kanda
authors: Takeshi
authors: T
authors: Morimoto
authors: Takashi
authors: T
authors: Fujikado
mesh_terms: D000328:Adult; D006801:Humans; D007909:Lenses; D008268:Macular Degeneration / Q000175:diagnosis / Q000473:pathology; D008297:Male; D019721:Ophthalmoscopes; D055620:Optical Phenomena; D020419:Photoreceptor Cells, Vertebrate / Q000166:cytology / Q000473:pathology