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Wide-field schematic eye models with gradient-index lens.
We propose a wide-field schematic eye model, which provides a more realistic description of the optical system of the eye in relation to its anatomical structure. The wide-field model incorporates a… Expand
Benefit of higher closed-loop bandwidths in ocular adaptive optics.
- L. Diaz-Santana, C. Torti, I. Munro, P. Gasson, C. Dainty
- Medicine, Physics
- Optics express
- 6 October 2003
We present an ocular adaptive optics system with a wavefront sampling rate of 240 Hz and maximum recorded closed-loop bandwidth close to 25 Hz, but with typical performances around 10 Hz. The… Expand
Spin-to-orbital angular momentum conversion in focusing, scattering, and imaging systems.
- K. Bliokh, E. Ostrovskaya, M. Alonso, O. Rodriguez-Herrera, D. Lara, C. Dainty
- Physics, Medicine
- Optics express
- 29 August 2011
We present a general theory of spin-to-orbital angular momentum (AM) conversion of light in focusing, scattering, and imaging optical systems. Our theory employs universal geometric transformations… Expand
Correction of ocular and atmospheric wavefronts: a comparison of the performance of various deformable mirrors.
The main applications of adaptive optics are the correction of the effects of atmospheric turbulence on ground-based telescopes and the correction of ocular aberrations in retinal imaging and visual… Expand
Adaptive optics enhanced simultaneous en-face optical coherence tomography and scanning laser ophthalmoscopy.
A novel combination of adaptive optics with a simultaneous en-face OCT/SLO system for high resolution imaging of the in-vivo human retina is presented. Pairs of retinal images are shown and… Expand
Comparative analysis of deformable mirrors for ocular adaptive optics.
We have evaluated the ability of three commercially available deformable mirrors to compensate the aberrations of the eye using a model for aberrations developed by Thibos, Bradley and Hong. The… Expand
Adaptive optics for ophthalmic applications using a pyramid wavefront sensor.
A new adaptive optics system for the eye using a pyramid wavefront sensor interfaced in closed-loop with a piezoelectric deformable mirror is presented. Sensing parameters such as CCD integration… Expand
Experimental detection of optical vortices with a Shack-Hartmann wavefront sensor.
Laboratory experiments are carried out to detect optical vortices in conditions typical of those experienced when a laser beam is propagated through the atmosphere. A Spatial Light Modulator (SLM) is… Expand
Use of a customized vision model to analyze the effects of higher-order ocular aberrations and neural filtering on contrast threshold performance.
Customized optical filtering and light-dependent neural filtering were implemented in an ideal-observer model for an L-alternative forced-choice visual task. The model was applied to a contrast… Expand
Illumination correction of retinal images using Laplace interpolation.
Retinal images are frequently corrupted by unwanted variations in intensity that occur due to general imperfections in the image acquisition process. This inhomogeneous illumination across the retina… Expand