title: Pupil motion analysis and tracking in ophthalmic systems equipped with wavefront sensing technology.
abstract: Our eyes are constantly in motion, even during "steady" fixation. In ophthalmic systems equipped with wavefront technology, both eye and head motion potentially degrade its performance and/or increase the cost and complexity, as they induce a movement of the entrance optical pupil of the system. Here, we characterize the pupil motion in an aberrometry setting, using a custom, high-speed pupil tracker (478 Hz), and draw conclusions on design considerations of future ophthalmic systems. We also demonstrate the feasibility of tracking such motion directly with a custom-built Hartmann-Shack sensor (236 Hz) using a method that offers certain benefits over previously suggested approaches, thereby paving the way to an efficient and cost-effective approach.
authors.forename: Serge
authors.initials: S
authors.lastname: Meimon
authors.forename: Jessica
authors.initials: J
authors.lastname: Jarosz
authors.forename: Cyril
authors.initials: C
authors.lastname: Petit
authors.forename: Elena Gofas
authors.initials: EG
authors.lastname: Salas
authors.forename: Kate
authors.initials: K
authors.lastname: Grieve
authors.forename: Jean-Marc
authors.initials: JM
authors.lastname: Conan
authors.forename: Bruno
authors.initials: B
authors.lastname: Emica
authors.forename: Michel
authors.initials: M
authors.lastname: Paques
authors.forename: Kristina
authors.initials: K
authors.lastname: Irsch