Hi doctor,I am a 21 year old female. I suffer from very rapid up-beating and sometimes down-beating nystagmus, which exclusively occurs in the absence of visual stimulation. That is with my eyes closed and Frenzel goggles on. When the nystagmus occurs quite intensely, my eyes will bounce under my eyelids and cause quite a nuisance. My neuro-otologist provided me with goggles to record my own eyes. From the recordings, I notice my pupil constrict significantly when they nystagmus occurs intensely despite being in total darkness. Why do my pupils constrict when the nystagmus occurs despite being in total darkness? When the nystagmus stops, my pupils dilate back to the normal size.I was diagnosed with a vestibular migraine. My symptom includes vertigo, dizziness, headaches, balance issues, binaural tinnitus, and cognitive issues. I have undergone routine vestibular testing. My rotational chair and caloric test results came back hyper-responsive. VEMP testing came back normal. And my brain MRI came back unremarkable. I have been on Amitriptyline 25 mg, and I am currently on Pizotifen 0.5 mg.
Hi, Welcome to Chat Doctor forum. I read your query and understand your concerns. I hope this answers you. If you have more questions feel free to write back to me. Thanks and regards. For more information consult a neurologist online 