Subthreshold Laser and Subliminal (Micropulse) Laser in Diabetic Retinopathy and Diabetic Macular Edema

Abstract

Diabetic macular edema (DME) is one of the main causes of a significant reduction in visual acuity in working-age adults and is the most common cause of visual acuity loss from diabetic retinopathy. Most of the studies have shown that the ability of the conventional laser to maintain or improve visual acuity is limited, possibly because of the development of retinal scars, which decrease the potential for improved visual acuity. Subthreshold laser and subliminal (micropulse) laser has the potential to reduce DME with better visual acuity results compared with conventional laser, as it does not cause collateral damage in the retina. These lasers cannot cause permanent damage to the retina. This article mentions subthreshold laser, and subliminal (micropulse) laser in diabetic retinopathy and diabetic macular edema.