Cataracts: Rip-Offs in Diagnostics and Treatment
Cataract surgery is now among the most common medical procedures of all. Every year, hundreds of thousands of cataract operations are performed in Germany. For many affected individuals, the procedure genuinely leads to a significant improvement in vision and quality of life. At the same time, criticism surrounding certain business models related to diagnostics and treatment has been growing for years.
Patients are increasingly confronted with expensive methods, even though cataract surgery itself is fundamentally covered by statutory health insurance. Once again, economic misaligned incentives within the system are becoming apparent. In this article, we examine the role played by costly additional examinations and so-called premium lenses.
What Are Cataracts?
Cataracts are characterised by a progressive clouding of the natural lens of the eye. The lens gradually loses its transparency, causing vision to become increasingly blurred. Many affected individuals describe the sensation as though they were constantly looking through a veil or a fogged-up pane of glass.
Cataracts occur particularly frequently in older age. Age-related changes of the lens are considered the most common cause. With advancing age, protein structures within the lens change, while oxidative stress and metabolic processes also play a role.
Typical symptoms include:
· blurred vision
· increased sensitivity to glare
· poorer vision in low light
· fading colours
· frequently changing eyeglass prescriptions
Factors that may promote the development of cataracts include:
· diabetes mellitus
· smoking
· intense UV exposure
· certain medications (e.g. corticosteroids)
· eye injuries
· chronic inflammation
Because lens clouding usually develops slowly, many people initially notice little or no change. At advanced stages, however, vision may become significantly impaired
(Verbraucherzentrale Bundesverband (consumer protection organization), 2026).
In integrative and alternative medicine, extensive research has for years focused on the role of antioxidant micronutrients in eye health. Particular attention has been paid to substances that help protect cells from oxidative stress — a process that also plays a role in age-related changes of the eye lens.
These include:
o carotenoids
o lutein
o vitamin E
o zeaxanthin
These substances are found, among other sources, in leafy green vegetables, fruit, certain plant oils, nuts and fatty fish varieties (Weikel et al., 2014).
Cataracts should not be confused with glaucoma. Glaucoma is a disease of the optic nerve, often associated with increased intraocular pressure. The symptoms differ significantly: glaucoma frequently causes few or no symptoms for a long time. Over time, however, gradual visual field loss may occur. Without treatment, permanent vision damage is possible (Deutsche Ophthalmologische Gesellschaft, 2024; Berufsverband der Augenärzte Deutschlands, 2024).
Why Are Cataract Diagnostics and Treatment Under Criticism?
Standard treatment consists of surgery in which the clouded lens is removed and replaced with an artificial lens.
Statutory health insurance generally covers medically necessary cataract surgery, including the standard lens.
Criticism mainly concerns additional services that require out-of-pocket payment.
Patients repeatedly report being advised to undergo additional examinations or to choose so-called premium lenses before surgery. In some cases, this results in extra costs ranging from several hundred to several thousand euros.
The most frequently mentioned services include:
· premium lenses
· multifocal lenses
· laser-assisted procedures
· OCT examinations
· optical biometry / IOL Master
(Verbraucherzentrale NRW, 2025).
Critics therefore accuse some facilities of failing to clearly distinguish between medically necessary services and optional add-ons.
Medical Necessity — or a Lucrative Sales Pitch?
Older patients in particular may often find it difficult to assess which services are medically necessary, which merely represent comfort improvements and which are primarily financially attractive for practices or clinics.
Consumer protection organisations explicitly emphasise that individuals covered by statutory health insurance are entitled to standard cataract surgery with a standard lens and that additional services must not be made a prerequisite for treatment (Verbraucherzentrale Bundesverband, 2025).
Premium Lenses: Medical Progress — or a Billion-Dollar Business?
A central point of controversy concerns the so-called “premium lenses.” While standard lenses usually correct one visual distance, multifocal or specialised lenses are intended to provide additional benefits for near or intermediate vision.
Supporters argue that modern lenses may reduce dependence on glasses and allow visual needs to be addressed more individually.
Critics, however, emphasise that the actual additional benefit is not always clearly proven. Moreover, because economic interests may play too large a role during consultations, patients may at times be significantly unsettled. This is precisely why there is intense debate about how transparently consultations before such procedures are actually conducted.
“Massive Rip-Offs” in Cataract Surgery?
The issue received particular attention through investigations by NDR and Das Erste. According to these reports, many patients are confronted with expensive additional offers before cataract surgery, despite the fact that statutory health insurance fundamentally covers medically necessary standard treatment.
The criticism also focuses especially on “premium lenses.” According to NDR, affected individuals were in some cases asked to pay several hundred euros extra, even though certain lens types — including aspheric monofocal lenses — have already been regarded internationally as the medical standard for years.
Critics therefore accuse some facilities of presenting regular standard care as a chargeable premium service. In addition, the investigation reports extra billing for pre-operative examinations, special surgical techniques or alleged additional effort (NDR / Das Erste, 06.05.2026).
Deutschlandfunk also covered the investigation and reported allegations that older people were in some cases heavily pressured with additional services before eye surgery, despite the existence of adequate insurance-covered care (Deutschlandfunk, 06.05.2026).
How Do Such Economic Incentives Actually Arise?
Cataract operations are among the most common procedures in modern medicine. As a result, a substantial market has developed around additional services. Standard operations are sometimes economically less attractive, while add-on services can generate additional revenue. At the same time, many patients understandably place considerable trust in medical recommendations without questioning them.
This creates tensions between medical progress and potential sales interests.
Several reforms are currently being planned within the German healthcare system. Unfortunately, this would represent another (currently overlooked) point of concern
Conclusion: Cataracts — Medical Progress Meets Economic Interests
Cataract surgery is fundamentally an established and often beneficial procedure. Many people genuinely benefit from it significantly.
Nevertheless, the current debate illustrates how problematic it can become when medical care and economic interests become increasingly intertwined.
Additional services are not automatically illegitimate. At the same time, however, patients may reasonably expect to be informed about them clearly and transparently. The fact that this is not always the case is hard to digest.
FAQ — Frequently Asked Questions About Cataracts
1. Do patients have to agree to additional services (immediately)?
No. Patients are entitled to have offers explained to them carefully and should never sign cost agreements under time pressure.
2. Can patients protect themselves against unnecessary additional costs?
Yes. Consumer protection organisations recommend requesting written cost breakdowns and, if necessary, obtaining a second ophthalmological opinion.
3. What is a standard lens?
This is the regular artificial lens whose costs are generally covered by statutory health insurance in medically necessary cataract surgery.
4. Does a more expensive lens automatically lead to better results?
Not necessarily. The actual additional benefit of specialised lenses can vary.
5. Are there similar debates about additional services abroad?
Yes. Internationally, there are also debates surrounding chargeable premium lenses, self-pay services and economic interests connected with cataract surgery. In the United States, for example, media outlets and consumer advocates have for years reported aggressive marketing of expensive multifocal lenses and additional surgical techniques that can cost patients several thousand dollars. Critics there likewise argue that many patients find it difficult to judge which services are medically necessary and which primarily concern comfort or additional revenue (American Academy of Ophthalmology, 2024).
In the United Kingdom, meanwhile, there is regular debate about which additional services must be paid for privately beyond standard NHS care. Premium lenses and specialised refractive add-on procedures repeatedly become central topics of discussion (NHS, 2024).
Further information on medical scandals can be found not only on our blog, but also in our book series of the same name and in our “Codex Humanus” series, the fifth volume of which has recently been published. Feel free to visit our online shop.
Sources:
· Verbraucherzentrale NRW (13.04.2026): “Grauer Star: Ihre Rechte in der Arztpraxis.”
· Verbraucherzentrale Bundesverband (28.04.2026): “Grauer Star: Kostentransparenz vor der OP.”
· NDR / Das Erste (06.05.2026): “Massenhafte Abzocke bei Grauer-Star-Operationen.”
· Deutschlandfunk (06.05.2026): “Grauer Star: NDR prangert Abzocke durch Augenärzte bei OPs an.”