After reviewing all available data, the PRAC concluded that NAION (non-arteritic anterior ischemic optic neuropathy), a serious ocular condition that may cause loss of vision or rapidly worsening eyesight, is a very rare side effect of these medicines.
Recommendations:

• If you experience a sudden loss of vision or rapidly worsening eyesight during treatment with semaglutide, contact your doctor without delay. 
• If NAION is confirmed, treatment with semaglutide should be stopped.

The risk is expected to be very low (it may affect up to 1 in 10,000 people), but monitoring any change in eyesight is recommended.

More information on the press release