  Cataract is a common ophthalmic disease in which a cloudy area is formed in
the lens of the eye and requires surgical removal and replacement of eye lens.
Careful selection of the intraocular lens (IOL) is critical for the
post-surgery satisfaction of the patient. Although there are various types of
IOLs in the market with different properties, it is challenging for the patient
to imagine how they will perceive the world after the surgery. We propose a
novel holographic vision simulator which utilizes non-cataractous regions on
eye lens to allow the cataract patients to experience post-operative visual
acuity before surgery. Computer generated holography display technology enables
to shape and street the light beam through the relatively clear areas of the
patient's lens. Another challenge for cataract surgeries is to match the right
patient with the right IOL. To evaluate various IOLs, we developed an
artificial human eye composed of a scleral lens, a glass retina, an iris, and a
replaceable IOL holder. Next, we tested different IOLs (monofocal and
multifocal) by capturing real-world scenes to demonstrate visual artifacts.
Then, the artificial eye was implemented in the benchtop holographic simulator
to evaluate various IOLs using different light sources and holographic
contents.
