Two sessions of low-level light therapy may decrease ocular pain and dry eye disease symptoms after cataract: BMJ
A new study published in the British Journal of Ophthalmology found that low-level light therapy (LLLT) can dramatically lessen symptoms of dry eyes after cataract surgery. Despite the growing evidence that patients with pre-existing dry eye disease (DED) must optimize their ocular surface prior to cataract surgery in order to achieve the intended postoperative outcomes, it is still worth to investigate the prophylactic treatment of healthy patients who were undergoing surgery in order to prevent iatrogenic DED. Low-level laser therapy is a rapidly emerging technique used to treat a wide range of diseases requiring healing stimulation, pain and inflammation reduction, and function restoration. Therefore, Giuseppe Giannaccare and team carried out this study in order to assess the effectiveness of low-level light treatment in iatrogenic dry eye disease.
This prospective, interventional, randomized, controlled, and double-masked randomized patients 1:1 to receive either sham treatment (LLLT with a power output less than 30%) or real light therapy. Two therapy sessions were performed on the patients where one was 7±2 day prior to cataract surgery (T0) and one was 7±2 day following (T1). The Ocular Surface Disease Index (OSDI) questionnaire, tear meniscus height, non-invasive break-up time (NIBUT), meibomian gland loss (MGL) and redness score were among the outcome markers assessed 30±4 days following surgery (T2).
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