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Next in Optics


Meet our newest faculty researcher, Guoqiang Li, PhD, whose fresh ideas and passion for pushing the scientific envelope are changing the visual world.

Dr. Li  received his PhD from the  Shanghai Institute of Optics and Fine Mechanics, and then completed a  fellowship in the Department of Electrical & Computer Engineering at the University of California, San Diego. 

After graduation, he worked on developing a scanning laser polarimeter for the diagnosis of glaucoma. A scanning polarimeter uses polarized light to measure the thickness of the retinal nerve fiber layer (the light sensitive tissue that lines the back of the eye).

When he had a commercially available concurrent prototype scanning polarimeter, he began focusing on adaptive optics.
“One of my early projects was to develop adaptive eyeglasses,” said Dr. Li. “The idea is to overcome the disadvantages of the current bifocal and trifocal eyeglasses.”

In 2008, Dr. Li’s work with adaptive eyeglasses was published and had such an impact that he has been interviewed by more than 250 media sources; including print, radio, and TV.

Dr. Li has since started a new project trying to improve the quality of ocular imaging of the eye.

“We are working on improving the resolution of confocal and OCT imaging by correcting the aberration of the eye using adaptive optics.  This will help capture very fine detail of the different parts of the eye; including the cornea, anterior segment, the retina, and eventually the vitreous humor.”

“Right now we have built an OCT system with better resolution than what is commercially available, so that we can see more detailed features for different layers of the retina for better diagnosis from a cellular level.”

Before coming to Ohio State, Dr. Li was on faculty at the University of Arizona’s College of Optical Sciences and the University of Missouri’s College of Optometry.  He maintains his connections in St. Louis and is collaborating with a Washington University Ophthalmologist who found that one early indication of cataracts is liquidation of the vitreous humor.  Dr. Li is planning to use his high-resolution optical imaging technique to quantitatively determine it. 

“He is a talented and dedicated scientist,” said Cynthia Roberts, PhD, a fellow ophthalmology researcher. “His work is really at the cutting-edge and we are pretty excited to develop new collaborations with him now that he is at
Ohio State.”