Most people taking weight management treatment do not experience any problems with their eyes. Vision changes are not an expected side effect of these medicines. This article covers two specific situations where you should speak to someone rather than wait.
If you have diabetic retinopathy
Rapid improvement in blood sugar control can sometimes cause a temporary worsening of diabetic retinopathy, and this needs close monitoring. For that reason, treatment through our service is not suitable if you have diabetic retinopathy, and is best managed alongside your diabetic team. If you are diagnosed while on treatment, contact us so a pharmacist can review it.
Sudden changes in your vision
A very rare eye condition called non-arteritic anterior ischaemic optic neuropathy (NAION) has been reported in people taking semaglutide. It causes a sudden loss or deterioration of vision, usually in one eye. Because it is very rare, it is unlikely to be the cause of a vision change, but sudden changes always need to be checked.
When should I see an optician?
Any other change in your vision, or any eye symptoms you experience while on treatment, should be assessed by an optician. Please contact us afterwards to let us know the outcome, so a pharmacist can record it and review your treatment.
When should I seek urgent medical help?
Sudden loss of vision, or a sudden deterioration in vision in one eye, needs same-day assessment. Attend an eye casualty department or A&E. Do not wait to see whether it settles.
Stop taking your treatment and contact us so a pharmacist can review it.