While the study included a range of patients in a variety of stages of presbyopia, the change in crystalline lens and anterior segment geometry was most pronounced in emmetropic and myopic presbyopes.
Investigators used 3D optical coherence tomography (OCT) to measure and monitor geometric alterations in patients with varying stages of presbyopia.
(Image credit: ©TAGSTOCK2—stock.adobe.com)
Research conducted by CooperVision and University of Rochester Flaum Eye Institute, in collaboration with the Instituto de Optica “Daza de Valdés,” may have identified a novel marker for presbyopic accommodation. This discovery, which will be presented May 7 in a paper at the Association for Research in Vision and Ophthalmology 2025 Annual Meeting in Salt Lake City, Utah, explores the change in both anterior segment and lens geometry according to accommodative demand.
The paper, titled “OCT-based marker for accommodative effort in presbyopes,” explores changes in the anterior segment and crystalline lens geometry in relation to accommodative demand. While the study included a range of subjects in a variety of stages of presbyopia, the change was most pronounced in emmetropic and myopic presbyopes. Investigators used 3D optical coherence tomography (OCT) to measure and monitor geometric alterations in patients with varying stages of presbyopia. Focusing ability remained, even when reduced, and crystalline lens thickness was the key marker for focusing effort, particularly in myopes.
“We believe this is the first in vivo study to show the evolution of physiological response of the crystalline lens as adults age,” Percy Lazon de la Jara, director of research programs for CooperVision and a paper coauthor, said in a press release. “CooperVision’s deep commitment to advancing ocular science and care means evaluating the entire eye, including how it changes from presbyopia onset through stabilization. This latest work—employing a remarkable application of OCT to uncover previously unavailable insights—will help map optical corrections that could be incorporated into future presbyopia correction methods and devices.”
Investigators believe the new marker for accommodation in presbyopes has the power to drive future category innovation.
Want more insights like this? Subscribe to Optometry Times and get clinical pearls and practice tips delivered straight to your inbox.