Postoperative dry eye disease (DED) is a frequent complication that can diminish patient satisfaction and visual outcomes after cataract surgery, yet evidence on preventive strategies remains limited. To address this gap, a study investigated the perioperative use of low-level light therapy (LLLT), a non-invasive modality with emerging benefits in DED management, evaluating its prophylactic effect on ocular surface signs and symptoms in 98 patients undergoing cataract surgery.
The study showed that patients receiving LLLT experienced marked improvements in dry eye symptoms, with Ocular Surface Disease Index (OSDI) scores decreasing from 26.62 to 15.53 at T1 and 13.36 at T2, and tear film stability increasing as break-up time (BUT) values rose from 5.76 to 6.69 and 8.38 over the same intervals. Tear osmolarity also improved significantly by T2, while Schirmer test results remained…
