Grit in eye after Botox?

Dry eyes can sometimes occur with Botox administration. This can last for a little while. Please see an optician and go back to your physician who should be able to prescribe you with hypermellose eye drops to prevent corneal abrasions.

It sounds like you are experiencing a symptom of dry eye, what we in ophthalmology refer to as "foreign body sensation." It may have been a preexisting condition prior to your Botox injection, but perhaps you became more aware of the sensation afterward. I would try artificial tears but also follow up with an ophthalmologist for full evaluation. 

Thanks for your question. Experiencing dry eyes or the feeling that there is dirt or “grit” in your eyes can be a side effect of BOTOX®. In many cases, using a lubricating eye drop to help mimic your natural tears can help to alleviate this feeling. I would suggest talking to your plastic surgeon or eye doctor for a more individualized evaluation of what may be going on.