Statins and Glaucoma: What a Study of 210,000+ Adults Found
Updated: 3 days ago
Written and medically reviewed by Dr. Baraa Alnahhal, MD · Last reviewed: October 2026
Quick Answer
Statins were linked to a lower risk of glaucoma in a large study. Adults over 40 who took statins were 15% less likely to be diagnosed with open-angle glaucoma over five years than similar adults who did not. The study was observational, so it shows a link, not proof, and older research is mixed.
A large new study on statins and glaucoma found that adults over 40 who took statins, the common cholesterol-lowering pills, were 15% less likely to be diagnosed with open-angle glaucoma over five years than similar adults who did not take them [1]. People who already had glaucoma and took statins were also less likely to need laser treatment or surgery. The study was observational, so it shows a link, not proof that statins protect the eyes, and older research on this question is mixed [1][2][3].
What the research says
Earlier studies pooled together point to a small benefit at most. A 2022 meta-analysis of eight long-term studies with 515,600 participants found statin use was linked to a 5% lower risk of developing open-angle glaucoma (pooled relative risk 0.95). The authors said the evidence was "typically weak" and that results on glaucoma getting worse were inconsistent (Yuan et al., EClinicalMedicine, 2022).
Not every analysis agrees. A 2024 network meta-analysis of 12 studies covering 262,217 people found that three specific statins, rosuvastatin, simvastatin and pravastatin, were each linked to about a 20% higher risk of glaucoma onset compared with placebo (risk ratios 1.20 to 1.23) (Pan et al., Graefe's Archive for Clinical and Experimental Ophthalmology, 2024).
Cholesterol itself may be part of the story. A review of 29 observational studies found that people with glaucoma had higher total cholesterol (on average 7.9 mg/dL higher) and lower "good" HDL cholesterol (2.0 mg/dL lower) than people without glaucoma. The authors said this link does not prove that cholesterol causes glaucoma (Posch-Pertl et al., Acta Ophthalmologica, 2021).
Key takeaways
In a study of 210,701 matched adults over 40, statin use was linked to a 15% lower risk of open-angle glaucoma at 5 years and a 10% lower risk at 10 years [1].
Among 29,598 people who already had glaucoma, statin users were 36% to 60% less likely to need glaucoma surgery or laser treatment within 5 years [1].
This was a records-based study, not a randomized trial. People who take statins may differ in other ways that affect eye health [1][6].
Earlier research is mixed: one large review found a small 5% lower risk, while another linked certain statins to a higher risk [2][3].
Statins are not a treatment for glaucoma. Do not start or stop a statin for eye health without talking to your doctor [6].
Regular eye exams remain the best way to catch glaucoma early, because it often causes no symptoms at first [4][5].
What is the new study on statins and glaucoma?
Researchers from the University of California San Diego and two other US medical schools analyzed anonymized electronic health records from a large research database. They published their results in the British Journal of Ophthalmology, online first in September 2026, and the findings were widely reported this week [1][6].
The team ran two analyses [1]:
Glaucoma risk. They compared adults over 40 who used statins with matched adults who did not, for a total of 210,701 matched patients. All had seen an eye doctor in the year before.
Glaucoma treatment. They looked at 29,598 people who already had open-angle glaucoma, comparing those who were also taking statins with those who were not.
"Matched" means each statin user was paired with a non-user who looked similar on recorded factors. This reduces some bias, but it cannot remove differences that were never recorded.
How much lower was the risk?
The study reports results as hazard ratios. A hazard ratio of 0.85 means the rate of the outcome was 15% lower in statin users than in non-users over the same period [1].
Outcome in statin users vs. non-users | At 5 years | At 10 years |
|---|---|---|
New open-angle glaucoma diagnosis | 15% lower (HR 0.85) | 10% lower (HR 0.90) |
Needing glaucoma eye drops | 11% lower (HR 0.89) | 12% lower (HR 0.88) |
Incisional glaucoma surgery | 36% lower (HR 0.64) | 32% lower (HR 0.68) |
Minimally invasive glaucoma surgery (MIGS) | 55% lower (HR 0.45) | 46% lower (HR 0.54) |
Selective laser trabeculoplasty (SLT) | 60% lower (HR 0.40) | 51% lower (HR 0.49) |
These are relative differences, a common point of confusion in news about statins and glaucoma. The study summary does not report absolute risks, so we cannot say how many fewer people per 1,000 developed glaucoma [1]. A 15% relative drop sounds large, but if the starting risk is low, the real-world difference for one person may be small.
Why might statins and glaucoma be linked?
Nobody knows yet. Open-angle glaucoma slowly damages the optic nerve, often because fluid does not drain well from the eye and eye pressure rises [4][5]. Experts not involved in the study said the exact mechanism is unknown. Possible explanations include effects on the eye's fluid drainage pathways and anti-inflammatory or nerve-protecting effects, but these ideas are still being tested [6].
Cholesterol may also play a role. Reviews have found that people with glaucoma tend to have higher total cholesterol and lower HDL cholesterol [8], and an umbrella review listed high cholesterol (hyperlipidemia) among factors linked to higher glaucoma risk, and short-term statin use among factors linked to lower risk [7].
Does this mean statins prevent glaucoma?
No. Research on statins and glaucoma is not yet strong enough to say that. There are three main reasons for caution:
It is observational. The authors themselves wrote that prospective trials are needed [1]. An independent ophthalmologist called the study large and well designed but said it is not proof of a protective effect [6].
People who take statins may be different. They may see doctors more often, take other medicines, or have other health habits. Matching helps, but cannot fix everything.
The wider evidence is mixed. One meta-analysis found only a 5% lower risk with weak underlying evidence [2]. Another found that three specific statins were linked to a higher risk of glaucoma onset [3].
The study's lead author said that, if confirmed, statins should be seen as complementary to standard eye-pressure-lowering treatments, not as a replacement [6].
Who is at higher risk of glaucoma?
Glaucoma is the main cause of irreversible blindness worldwide [7], and open-angle glaucoma usually has no symptoms in its early stages [4][5]. You may be at higher risk if you [4][5]:
are over 55 (or over 40 and of African American or Hispanic/Latino heritage)
have a family history of glaucoma
have high eye pressure, thin corneas, or severe nearsightedness or farsightedness
have diabetes, high blood pressure, migraine or sickle cell anemia
use corticosteroid medicines long term, especially steroid eye drops
What should you do if you take statins?
If you already take a statin for heart health or high cholesterol, keep taking it as prescribed. This study is not a reason to change your dose or switch medicines. If you do not take a statin, this study is not a reason to start one for your eyes; one ophthalmologist said he would not start a statin purely for glaucoma at this stage [6].
What you can do now:
Get regular eye exams. A comprehensive dilated eye exam is the only way to confirm glaucoma [5]. One commonly cited schedule is every 2 to 4 years at ages 40 to 54, every 1 to 3 years at 55 to 64, and every 1 to 2 years after 65, and more often if you are at higher risk [4].
Tell your eye doctor about all your medicines, including statins and steroids.
Keep using glaucoma treatment if you have been diagnosed. Eye drops, laser and surgery can prevent further vision loss, though they cannot reverse damage already done [5].
Look after your heart and blood vessels. Managing cholesterol, blood pressure and diabetes is good for your whole body, including conditions linked to glaucoma risk [4].
Frequently asked questions
Do statins lower the risk of glaucoma?
A large 2026 study linked statin use to a 15% lower risk of open-angle glaucoma over 5 years, but it was observational and cannot prove cause and effect. Earlier reviews are mixed, so statins and glaucoma research is not settled [1][2][3].
Should I start taking a statin to protect my eyes?
No. Statins are prescribed to lower cholesterol and heart disease risk, not to prevent glaucoma. Randomized trials are needed before statins could be considered for eye health [1][6].
Can statins make glaucoma worse?
The new study did not find that. However, one 2024 network meta-analysis linked rosuvastatin, simvastatin and pravastatin to a higher risk of glaucoma onset. If you are worried, talk to your doctor rather than stopping your medicine [3].
What are the early signs of open-angle glaucoma?
Usually there are none. Over time, it can cause patchy blind spots in side vision, and later problems with central vision. That is why regular eye exams matter [4][5].
Is high cholesterol a risk factor for glaucoma?
Studies have found that people with glaucoma tend to have higher total cholesterol and lower HDL cholesterol, but this does not prove that cholesterol causes glaucoma [8].
Health information, not medical advice
Health information, not medical advice. This article explains new research in plain language and does not replace advice from your own doctor, eye specialist or pharmacist. Do not start, stop or change any medicine based on this article. If you notice sudden eye pain, redness, blurred vision or vision loss, seek medical care right away.
Sources
Lin F, Hong AT, Weinreb RN. Statin use is associated with lower risk of open-angle glaucoma incidence and treatment escalation. British Journal of Ophthalmology. 2026. PMID 42838727. https://doi.org/10.1136/bjo-2026-330339
Yuan Y, Xiong R, Wu Y, et al. Associations of statin use with the onset and progression of open-angle glaucoma: A systematic review and meta-analysis. EClinicalMedicine. 2022;46:101364. PMID 35399812. https://doi.org/10.1016/j.eclinm.2022.101364
Pan SY, Chen YY, Hsu MY, et al. Associations of different types of statins with the risk of open-angle glaucoma: a systematic review and network meta-analysis. Graefe's Archive for Clinical and Experimental Ophthalmology. 2024;263(1):201-208. PMID 39212799. https://doi.org/10.1007/s00417-024-06620-9
Mayo Clinic Staff. Glaucoma: Symptoms and causes. Mayo Clinic. November 5, 2024. https://www.mayoclinic.org/diseases-conditions/glaucoma/symptoms-causes/syc-20372839
National Eye Institute. Glaucoma. National Eye Institute. July 28, 2020. https://www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseases/glaucoma
Pelc C. Statins may help lower glaucoma risk, study finds. Medical News Today. October 12, 2026. https://www.medicalnewstoday.com/articles/statins-may-help-lower-glaucoma-risk-study-finds
Li W, Pan J, Wei M, et al. Nonocular Influencing Factors for Primary Glaucoma: An Umbrella Review of Meta-Analysis. Ophthalmic Research. 2021;64(6):938-950. PMID 34517373. https://doi.org/10.1159/000519247
Posch-Pertl L, Michelitsch M, Wagner G, et al. Cholesterol and glaucoma: a systematic review and meta-analysis. Acta Ophthalmologica. 2021;100(2):148-158. PMID 33506616. https://doi.org/10.1111/aos.14769
About the author: Dr. Baraa Alnahhal, MD, is a medical doctor and the founder of Rinnit. Dr. Baraa Alnahhal reviews new medical research and translates it into clear, evidence-based health information for everyday readers.
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