High speed adaptive optics

Our adaptive optics flood illumination ophthalmoscope (AO-FIO) platform incorporates a custom built real-time controller, enabling up to 70 Hz loop rate without jitter, and an AO-corrected illumination capable of projecting high-resolution features in the retina. Wide-field (2.7° × 5.4°) and distortionless images from vessel walls, capillaries, and the lamina cribrosa are obtained with an enhanced contrast and signal-to-noise ratio, thanksto careful control of AO parameters. The high spatial and temporal resolution (image acquisition up to 200 Hz)performance achieved by this platform enables the visualization of vessel deformation and blood flow.

High loop rate adaptive optics flood illumination ophthalmoscope with structured illumination capability.Gofas-Salas E, Mecê P, Petit C, Jarosz J, Mugnier L, Montmerle Bonnefois A, Grieve K, Sahel J, Paques M, Meimon S.

Appl. Opt. 57, 5635-5642 (2018).

Fixational eye movement: a negligible source of dynamic aberration.

P Mecê, J Jarosz, JM Conan, C Petit, K Grieve, M Paques, S Meimon.

Biomedical Optics Express 9 (2), 717-727.

New prospects in Adaptive-Optics Flood-Illumination retinal imaging
S Meimon, EG Salas, P Mecê, C Petit, K Grieve, L Mugnier, JA Sahel, M Pâques…
Adaptive Optics: Analysis, Methods & Systems, 2018 OTh4C. 4

Pupil motion analysis and tracking in ophthalmic systems equipped with wavefront sensing technology.

Meimon S, Jarosz J, Petit C, Gofas Salas E, Grieve K, Conan JM, Emica B, Paques M, Irsch K.

Appl. Opt. 2017. 56, D66-D71.