Blinking Parameters Do Not Normalize After Botulinum Toxin Therapy in Blepharospasm and Hemifacial Spasm Patients.
Gustavo R GameiroMidori H OsakiCristina YabumotoTeissy OsakiDenny M GarciaRubens BelfortAntonio Augusto V CruzTammy Hentona OsakiPublished in: Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society (2023)
Although blinking frequency became close to normal, amplitude and velocity after BoNT applications were significantly lower in BSP and on the affected side of HFS patients when compared with age-matched normal controls, demonstrating that blinking parameters do not normalize after treatment. The velocity of eyelid closure was shown to be significantly lower, even before BoNT treatment, when compared with control subjects.