Wegovy and Ozempic: What Does It Mean for Your Lens Surgery?
The use of weight-loss medication such as Wegovy and Ozempic (semaglutide) has increased dramatically in recent years. At the same time, at Copenhagen Eye Institute, we are receiving more and more questions from patients concerning the ocular side effects of these medications and their compatibility or not with certain eye operations.
These are entirely reasonable concerns. When considering eye surgery—whether it involves cataract operations or refractive lens exchanges—patients naturally want assurance that the treatment is safe, predictable, and based on the best available scientific evidence.
This article provides a comprehensive, clear, and up-to-date overview of the relationship between Wegovy/Ozempic, eye health, and eye surgery, so you can make an informed decision about your vision.
Do Wegovy and Ozempic Affect Vision?
Some patients report temporary visual changes when starting semaglutide treatment. This can be due to:
- Changes in blood sugar levels, which can alter the shape of the eye’s natural lens and temporarily affect vision.
- Fluid shifts in the body, which may slightly influence eye optics.
- Potential progression of diabetic retinopathy in patients who already have this condition.
It is important to emphasize that most patients do not experience serious eye side effects from Wegovy or Ozempic. Nevertheless, monitoring eye health—especially in diabetic patients—is good clinical practice.
In some cases, semaglutide treatments have been linked to problems in the optic nerve. It is important to understand that this side effect, although potentially serious, is very rare, and in most cases it is not a reason to avoid its use.
Can You Have Lens Replacement While Taking Wegovy or Ozempic?
In most cases, yes—you can have lens replacement surgery while taking Wegovy or Ozempic. There is no general contraindication to eye surgery simply because a patient is using semaglutide.
However, certain factors should be carefully evaluated on an individual basis:
1. Blood Sugar Control and Metabolic Stability
For patients with diabetes, good blood sugar control is crucial before and after surgery. Large fluctuations in blood glucose levels can temporarily affect vision and, in some cases, influence healing after surgery. Therefore, we assess metabolic stability as part of the preoperative evaluation.
2. Retinal Health (Back of the Eye)
Some studies have suggested that patients with pre-existing diabetic retinopathy may experience changes in their retinal condition when starting semaglutide. This does not mean that Wegovy or Ozempic is unsafe—but it does mean that a thorough retinal examination is recommended before proceeding with lens replacement surgery.
3. Stability of Your Vision
Rapid weight loss can, in some individuals, cause small changes in refractive error (glasses prescription). For this reason, we may recommend ensuring that your vision has been relatively stable for a period before performing precise measurements for premium intraocular lenses.
Can You Get Multifocal Lenses While Taking Wegovy?
Yes—multifocal lenses are still a possible option for most patients on Wegovy or Ozempic. However, the decision requires a careful and detailed eye examination. The single most important point here is if diabetes mellitus has harmed the posterior part of the eye, a condition called diabetic retinopathy.
Multifocal, trifocal, and EDOF (Extended Depth of Focus) lenses demand high optical quality of the eye. However, some patients with mild or moderate diabetic retinopathy can be candidates to other types of surgical solutions that can aim for the highest possible level of spectacle independence. Typically through a monovision solution, where one eye is used for reading and the other eye is used for far distance
When a diabetic patients or non diabetic patient taking Wegovy approaches us with the interest in being free of spectacles we book a preoperative consultation where we address:
- Any presence of diabetic retinopathy
- The quality of your tear film and ocular surface
- Signs of dry eye disease
- The condition of your retina
- The stability of your vision over time
If these factors are satisfactory, there is generally no reason to exclude multifocal lenses solely because you are taking Wegovy or Ozempic.
However, since many of the patients that take this drug have diabetes in different stages, it is important to know that diabetic retinopathy (harm of the retina due to diabetes) is an absolute contraindication for Multifocal trifocals and in most cases EDOF lenses in our practise.
Cataract Surgery, Lens Replacement, and GLP-1 Medication
Many patients taking Wegovy or Ozempic are also in the age group where cataracts (clouding of the natural lens) become more common.
The key message is:
If you have visually significant cataracts, you should not avoid surgery simply because you are taking semaglutide.
Modern cataract surgery with premium intraocular lenses can significantly improve both vision and quality of life. The most important factor is proper preoperative assessment and timing of surgery.
Should you have scheduled consultations with your eye doctor if you are taking Wegovy/Ozempic?
The use of this medication does not normally require periodic checks, but a diagnosis of diabetes mellitus does. However, patients taking Wegovy/Ozempic should be specially aware of the following symptoms.
- Sudden blurred vision
- New floaters or dark shadows in your vision
- Flashes of light
- Worsening of known diabetic retinopathy
- Rapid changes in your glasses prescription
These symptoms may or may not be related to Wegovy or Ozempic, but they always need prompt evaluation by an eye specialist.
How We Approach Patients at Copenhagen Eye Institute
At Copenhagen Eye Institute, we combine:
- State-of-the-art diagnostic technology
- Individualized risk assessment
- The latest scientific evidence on both eye surgery and systemic medication
- Collaboration with your general practitioner or endocrinologist when needed
Our goal is not just to perform eye surgery—but to ensure the best possible long-term visual outcome tailored to your personal health situation.
Frequently Asked Questions (FAQ)
1. Do I need to stop Wegovy before eye surgery?
In almost all cases, no. However, this is assessed individually based on your medical history and the type of surgery planned.
2. Does Wegovy increase the risk of complications in lens replacement?
No, there is no clinical evidence stating so. The main concern is in patients with poorly controlled diabetes or pre-existing retinal disease.
3. Kan jeg få laserøjenbehandling, mens jeg er i behandling med Ozempic?
Ja, i de fleste tilfælde – men det afhænger af nethindens og hornhindens tilstand.
4. How long should my vision be stable before surgery?
We often recommend a period of refractive stability of at least 6 months in non-cataract patients, especially when planning premium intraocular lenses.
Conclusion
Wegovy and Ozempic are not contraindications for lens replacement or multifocal lenses. What matters most is a thorough, personalized evaluation of your eyes, your general health, and your medical treatment. With the right preparation and assessment, most patients can safely undergo modern eye surgery – even while taking semaglutide.