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Choroidal neovascularization after an alexandrite laser burn
摘要： Lasers used for hair removal operate between 700 and 1000 nm to be absorbed by hair follicle melanin and destroyed by thermal injury. Due to the high concentration of melanin in the retinal pigment epithelium, the retina is particularly susceptible to laser-related accidents. The use of alexandrite laser for esthetic purposes has been growing in recent years as well as its use by unqualified personnel, which can result in eye-level accidents. We describe an alexandrite laser accident suffered by a beautician that resulted in choroidal neovascularization.
关键词： Retinal injury,Laser burn,Choroidal neovascularization,Alexandrite laser
更新于2025-09-19 17:13:59
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Randomized, Controlled Early Intervention of Dynamic Mode Fractional Ablative CO <sub/>2</sub> Laser on Acute Burn Injuries for Prevention of Pathological Scarring
摘要： This study challenges the currently accepted treatment parameters of waiting 1 year following burn injury to treat the resultant scarring. It assesses the impact of treating burn and trauma wounds at less than 3 months of injury on scar formation, providing a new temporal paradigm to patients in the prevention and minimization of scar formation. This randomized clinical trial included 19 patients with moderate‐to‐severe acute burn injuries less than 3 months from injury. The treatment areas underwent three fractional ablative CO2 laser treatments at 8‐week intervals. The primary outcomes were improvement in the Manchester Scar Scale (MSS) and photography. Secondary outcomes were optical coherence tomography (OCT), treatment time, immediate post‐treatment response, and histology. Upon blinded evaluation, 100% of treatment areas were correctly identified when compared with control. MSS scores before and after treatment were totaled with an averaged sum of 13.33 per scar at baseline to 8.39 after treatment, a 63% average improvement versus control (P < 0.001). Histology and OCT demonstrated a re‐organization of the underlying skin structure. The average treatment time was 18 minutes. Immediate post‐treatment responses were limited to mild‐to‐moderate erythema. Early intervention with ablative fractional laser on acute traumatic wounds resulted in significant decrease of scar formation compared with untreated areas on the same wounds, providing an impactful new time course to treat severe burn and trauma injuries.
关键词： scar prevention,fractional ablative laser,burn scars,scars,wound healing
更新于2025-09-19 17:13:59