Research


Dr. De Gracia's background is multidisciplinary. The works produced in the lab are focused on Optometry related issues. To tackle these questions, we often use a computational approach and we  also can make use of custom made optical systems to collect the desired information. In particular, we are interested in exploring new multifocal solutions for presbyopia and the relationship between ocular movements, the perception of blur, and the process of emmetropization.

Multifocal Performance of Contact Lenses

Currently, we are interested in exploring new multifocal solutions for presbyopia. Our last work has been published in Journal of Cataract and Refractive Surgery. You can find the article in the Publications page. The first figure of the paper is shown below.

Monovision Example
Representations of subjects with solutions representing modified monovision. Left: Monofocal solution in the right eye with a bifocal design in the left eye. Middle: Monofocal correction in the right eye with a trifocal design in the left eye. Right: Monofocal lens in the right eye with an aspheric lens in the left eye (design with spherical aberration).

We plan to explore the clinical applications of these designs in contact lenses in the near future. We have a database of more than 1000 patients (both eyes) collected by Dr. Hartwig in Germany that allow to perform simulations of optical quality under realistic cinrcunstances. Also, all the clinical equipment present at The Eye Institute of Midwestern University is at our disposition for research projects.

Biomicroscope

Fixational Eye Movements

We are preparing an optical set-up capable of presenting images (with variable blur), at the same time that measurements of ocular aberrations, accommodation, and eye movements are performed.

Dr. De Gracia lab is located at The Eye Institute of Midwestern University.