New research into the injections has explored a link to potential sight loss.
Ewan Mowat Deputy Lifestyle, Trends, & Showbiz Editor
20:00, 18 Mar 2026
New research has suggested a link between weight loss injections and ‘eye stroke’(Image: David Eulitt/Kansas City Star/Tribune News Service via Getty Images)
Weight loss jabs have become increasingly popular in recent years, with celebrities and everyday workers alike trying them out in a bid to shift a few pounds. There are a number of different options on the market, and they all come with potential risks.
Among the more common short-term side effects are vomiting and diarrhoea, though some users of Glucagon-like peptide-1 receptor agonists (GLP-1s) have reported hair loss and serious issues including gallbladder and kidney problems. Major side effects are rare, and for most the benefits far outweigh them.
If the so-called skinny jabs help a user slim down, then that can help with a number of other weight-related health issues. In fact, one of the best-known GLP-1s is Ozempic, which is officially a medicine to treat those with type 2 diabetes.
One possible health issue that people might not associate with weight loss drugs, or fully consider before taking the injections, is the impact they could have on an individual’s eyesight. While unocmmon, a recent study has suggested that there may be a link between some jabs and sudden loss of sight.
The research, which was published this week in the British Journal of Ophthalmology, analysed medical reports from patients using semaglutude drugs; Wegovy for obesity treatment and Ozempic for diabetes.
Wegovy, which is currently able to be prescribed in Scotland on a limited basis for those meeting certain weight management criteria, was found to have a much higher reported risk of non-arteritic anterior ischemic optic neuropathy (NAION). The rare condition is sometimes referred to as an ‘eye stroke’.
The risk of sudden vision loss among those taking Wegovy was found to be five times higher than those on Ozempic. In spite of these new findings, experts have emphasised that these cases are extremely rare and more research is needed into the potential links to see if the medication directly causes eye strokes.
Nonetheless, Dr Stephen Hannan of Optical Express is warning those that are using or planning to use GLP-1s to be aware of the risks and to be vigilant for any changes to their vision.
Dr Hannan, the optician’s clinical services director, said: “Weight loss injections are becoming increasingly common and can deliver important health benefits for many people.
“However, any medication that affects the body can also have wider health implications. That’s why it’s important people remain aware of any sudden or unusual changes to their vision.
“While serious eye complications appear to be very rare, sudden vision loss should always be treated as a medical priority and assessed by a healthcare professional as quickly as possible.”
The UK Government’s guidance on the medication reads: “Anyone treated with semaglutide who notices a change in their eyesight, such as sudden blindness or a rapid deterioration in eyesight should urgently contact a doctor (call 111/attend eye casualty (if available in your area) or A&E if you can’t get through to your GP or your GLP-1 prescriber).”
And Dr Hannan has shared four key sings to be on the lookout for so that any eyesight issues can be seen to as quickly as possible.
Watch for sudden changes to eyesight
Any sudden loss of sight, dark patches, or shadowed areas should always be checked by a medical professional. Rapid changes to vision should never be ignored.
Don’t ignore blurred vision
Weight loss medications can affect metabolism and blood sugar levels, which may sometimes lead to temporary changes in vision. If your sight becomes noticeably blurred or inconsistent, it’s worth getting it assessed.
Rapid weight loss can affect vision
Significant changes in weight or blood sugar can sometimes temporarily affect eyesight. If you notice your vision becoming more blurred or fluctuating during weight loss, it’s important to get it checked.
Keep up regular eye tests
Routine eye examinations can detect early signs of eye disease before symptoms appear. Experts recommend adults have their eyes checked at least every two years.
Disclaimer : This story is auto aggregated by a computer programme and has not been created or edited by DOWNTHENEWS. Publisher: www.dailyrecord.co.uk
