What Causes Intermittent Blurred Vision And Severe Dizziness?

Brief Answer:
Other tests should be done, also

Detailed Answer:
Hello, Mrs. XXXX! I am Dr. Meriton. Thank you for asking on HCM. I understand your concern.

These symptoms may occur, among other reasons, from the dosage of medication and/or frequency of taking it. In case that the beta blockers are culprits, then they can produce these symptoms by reducing the heart rate and/or by reducing the blood pressure figures. If, after titrating down the beta blocker dosage, these symptoms have disappeared and not repeated, then with highest probability they were coming from an aggressive dosage of beta blockers to this particular organism. Furthermore, if he, besides the symptoms described above, also experienced near-fainting or fainting episodes, then further tests should be run.

At this point, I would recommend an EKG, where we can see if there is a anomaly of the electric or conduction system of the heart on baseline EKG, that would match with the symptoms; a valvular problem would have been heard on the cardiac auscultation, but, just to be more precise, I would recommend checking the heart muscle and valve function with an echocardiogram; since the EKG registers the heart electrical system just for the moment when the test is carried out, I would also recommend a 24-hour rhythm monitor registration, which basically is an EKG registered for 24 hours; also, as now appointed, I would also recommend a echo-Doppler of the carotid arteries, to see if there are any blockages there, that might cause the symptoms. You should understand that these are all measure recommended to be taken, so we can ease the confirming or exclusion of any origin of these symptoms, besides beta blockers.

Also, it is advisable that, if these symptoms occur when he abruptly switches positions such as from lying down to sitting, or from lying down or sitting to standing up, he should make these positional transitions slowly. For example, he should stay 1-2 minutes in a sitting position and then slowly assuming the position of standing up.

If all these tests come back normal, and with titrating down of the beta blocker dosage, the dizziness persists, then a consult with an otorhinolaringologist (ENT doctor) would be advisable, since the inner ear is responsible for one's equilibrium. As I said above, this remains an option after the other suspected culprits are excluded.

I hope I was helpful and thorough with my answer. If you have further questions, I am ready to help. Wish him and you a good health.

Best regards,
Dr. Meriton

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