Abstract
Hyaluronic acid injections are becoming increasingly common among both the general public and the medical community, but they are not without risks. The occurrence of blindness, although rare, is a tragic event for both the patient and the practitioner. One of the treatments proposed in the literature is to inject hyaluronidase as close as possible to the site of ischemia, retrobulbarly. The aim of our study is to evaluate the effectiveness and potential benefits of retrobulbar hyaluronidase injections. A literature review was conducted using the PubMed database. Only articles addressing retrobulbar hyaluronidase injections for the treatment of blindness following hyaluronic acid injections were included. We identified 12 case reports or series, comprising a total of 16 patients. Among these 16 patients, 3 regained their vision. Hyaluronidase was injected between 20minutes and 7days after the onset of the complication, with injected doses ranging from 3×150IU to 3×1500IU. Literature reveals only 3 cases of successful treatment out of the 16 reported injections. The time interval before retrobulbar injection, as well as the dose and the experience of the injecting practitioner, may influence the success rate of this treatment. Other treatments, such as intravascular hyaluronidase injections, remain to be explored.
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