News & Announcements

  • 2016-09 Drs. Xu and Bradley visited our collaborators in Murcia Spain, and taught classes to the Optometry students at the International University of the Sea.
  • 2016-08 Four of our Indiana University Visual Optics Group (Thibos, Xu, Liu and Bradley) presented at this years European Visual and Physiological Optics meeting in Antwerp.
  • 2016 Collaborations with Dr. Kollbaum’s lab on multifocal contact lenses and visual phenomena experienced by pseudophakes were initiated in 2016.
  • 2015-12 Congratulations Dr. Xu for obtaining her PhD in Vision Science from Indiana University.
  • 2015-10 Dr. Renfeng Xu was awarded the 2015 Ezell Fellowship by the American Optometric Association

  • 2015-10 Meznah Almutairi presented her first poster at this year's Annual meeting of the American Academy of Optometry in New Orleans. Binocular Accommodation and Pupil Responses of Early Presbyopes Viewing Through a Monovision Correction

  • 2015-09 Five our team members, Larry Thibos, Tao Liu, Huachun Wang, Renfeng Xu, and Arthur Bradley attended the 2015 International Myopia Conference in Wenzhou China to present research projects and SIG papers. We left having a clear understanding of the severity and urgency of the world myopia epidemic, and we are beginning to expand our myopia research program to help sort out some of the key research questions on myopia development and treatment.

  • 2015-09 Huachun Wang, Renfeng Xu, and Dr. Bradley presented research on Myopia at this year's International Myopia Conference in Wenzhou, China. Optical and subjective origins of myopia in aberrated eyes. Impact of multifocal contact lenses on the accommodative behavior of young eyes. Is peripheral retinal deprivation associated with near work related to myopia development?

  • 2015-09 Dr. Renfeng Xu, Tao Liu and Zhoulin Liu gave excellent presentations at the Optics SIG at this years IMC in Wenzhou demonstrating the high quality of our PhD students and our Vision Science training program to this important international audience.

  • 2015-01: Following on from our studies of primary spherical aberration, Dr. Xu and team members published a report clarifying the complex role that r^4 wavefront errors have on depth of focus when included in Zernike primary SA or Zernike secondary SA.

  • 2015-01: With two new publications (Cheney et al, and Coe et al), we complete a long series of studies examining the optical and visual effects of longitudinal and transverse chromatic aberration.

  • 2014-08: Congratulations to team members Bradley, Thibos and Kollbaum for being awarded US patent "Multifocal Correction Providing Improved Quality of Vision".

  • 2014-08: Our second computational paper on polychromatic imaging was published in the JCRS describing the interactions between monochromatic and chromatic aberrations in eyes implanted with diffractive IOLs.

  • 2014-07: Dr. Norberto Lopez-Gil from the Physics and Optometry programs at the University of Murcia, Spain visited the lab during July and August.

  • 2014-06: Congratulations to Dr. Renfeng Xu for being awarded the AOF Ezell Fellowship, which she will formally receive at the upcoming 2014 annual meeting of the American Academy of Optometry meeting in Denver.

  • 2014-05: Congratulations to our team for publishing four papers in Ophthalmic and Physiological Optics that explore the complicated interactions between ocular aberrations and test stimuli and how these affect both objective and subjective refractions as well as accommodation.

  • 2014-05: The team published a modeling paper in OPO revealing the complex interaction of aberrations and pupil size on the behavior of bifocal contact lenses or intra-ocular lenses.

Welcome to The Bradley Lab!

We are a group of scientists from around the world who participate in both basic and clinical studies designed to improve the visual quality of patients who are experiencing a variety of optical imperfections. Our diverse team has ongoing collaborations with colleagues in Spain, England, China as well as other labs at Indiana University.

As technologies advance, and our understanding of ocular optics expands, the scope of the lab is constantly adapting. We employ wavefront sensing, OCT, computer modeling and psychophysical methods to explore core questions about the human eye and modern ophthalmic corrections, e.g. night vision, aberrations, refraction, myopia development, presbyopia, multifocal contact lenses, IOLs, and refractive surgeries. Recently, we have examined the visual benefits and losses associated with presbyopic corrections that manipulate either the phase or amplitude function of the human eye. These studies are ongoing, and they become even more complex when we consider the rules by which the right and left eye’s images are combined in the visual cortex.

Please explore!

Research Opportunities:

Our lab is actively involved in research projects sponsored by both industry and government. We are available to support sponsors with both laboratory and patient-based research from our extensive laboratory and clinical facilities. We also offer consulting services. Please contact Professor Bradley at to explore these options.