title: Adaptive optics scanning laser ophthalmoscope for stabilized retinal imaging.
abstract: A retinal imaging instrument that integrates adaptive optics (AO), scanning laser ophthalmoscopy (SLO), and retinal tracking components was built and tested. The system uses a Hartmann-Shack wave-front sensor (HS-WS) and MEMS-based deformable mirror (DM) for AO-correction of high-resolution, confocal SLO images. The system includes a wide-field line-scanning laser ophthalmoscope for easy orientation of the high-magnification SLO raster. The AO system corrected ocular aberrations to <0.1 mum RMS wave-front error. An active retinal tracking with custom processing board sensed and corrected eye motion with a bandwidth exceeding 1 kHz. We demonstrate tracking accuracy down to 6 mum RMS for some subjects (typically performance: 10-15 mum RMS). The system has the potential to become an important tool to clinicians and researchers for vision studies and the early detection and treatment of retinal diseases.
authors.forename: Daniel X
authors.initials: DX
authors.lastname: Hammer
authors.forename: R Daniel
authors.initials: RD
authors.lastname: Ferguson
authors.forename: Chad E
authors.initials: CE
authors.lastname: Bigelow
authors.forename: Nicusor V
authors.initials: NV
authors.lastname: Iftimia
authors.forename: Teoman E
authors.initials: TE
authors.lastname: Ustun
authors.forename: Stephen A
authors.initials: SA
authors.lastname: Burns