Emerging research highlights the crucial role of routine eye exams in detecting early signs of heart disease. The retina, rich in blood vessels, reflects the state of the vascular system, allowing eye specialists to spot cardiovascular issues before symptoms such as chest pain, shortness of breath, or high blood pressure appear. Conditions like hypertensive retinopathy, retinal vein occlusion, and the presence of Hollenhorst plaques can indicate high blood pressure, atherosclerosis, or increased risk of stroke. Advanced imaging techniques, including optical coherence tomography and artificial intelligence, improve the detection of these subtle changes. Regular eye examinations are increasingly recognised as an important, non-invasive tool for identifying individuals at risk of heart disease. Experts suggest incorporating comprehensive eye screening into routine health check-ups to aid in early cardiovascular risk assessment and prevention. Take a look
Eye strokes and retinal damage: Early indicators of heart disease
During a comprehensive eye exam, optometrists and ophthalmologists use advanced tools to take a close look at the back of your eye, an area called the retina.
According to a
study published in PMC, a routine eye exam can reveal early signs of systemic conditions, including heart disease. Changes in the retina, such as blood vessel abnormalities, may indicate high blood pressure or other cardiovascular risks, making eye assessments a valuable tool for early detection.
Recently, experts have noticed that some people with heart disease show specific signs in the retina, such as:
- Eye strokes: These occur when blood flow to parts of the eye is briefly blocked. They leave behind small marks on the retina, which are a sign of reduced oxygen and nutrient supply. Over time, these tiny blockages may indicate underlying vascular issues, such as atherosclerosis or high blood pressure, that could increase the risk of heart attack or stroke.
- Retinal damage: In some cases, subtle damage to blood vessels in the eye could suggest a higher risk of cardiovascular problems. This damage may appear as microaneurysms, haemorrhages, or narrowed vessels, all of which can signal poor circulation and systemic inflammation linked to chronic heart disease. Regular eye examinations can help detect these early signs, allowing for timely intervention to manage cardiovascular risk factors effectively.
These findings, while not a diagnosis on their own, could prompt your doctor to investigate further, potentially catching heart disease earlier than usual.
Why heart disease can show up in the eyes
Heart disease often begins silently. It can slowly damage blood vessels throughout your body without any obvious symptoms. Because the eyes have such delicate and sensitive blood vessels, they may show damage earlier than other parts of the body.
This includes:
- Narrowed or twisted blood vessels
- Tiny leaks or bleeding
- Blocked vessels (eye strokes)
- Changes in the structure of the retina
If your eye doctor spots any of these during a scan, they may recommend a visit to your GP or a cardiologist for further tests.
How routine eye exams can help prevent heart attacks and strokes
Dr Joseph Nezgoda, a retina specialist and spokesperson for the
American Academy of Ophthalmology, explains that OCT scans aren’t just for eye health, they can reveal signs of problems elsewhere in the body, including the heart, brain, and nerves.
“Your ophthalmologist may be able to take an image of your eye to help find cardiovascular disease earlier than before,” he says.
This matters because early diagnosis saves lives. Catching heart disease in its early stages allows for timely lifestyle changes, medication, or monitoring that can prevent serious events like heart attacks or strokes, ultimately improving long-term health outcomes and reducing overall cardiovascular risk.
Who should be extra careful
While anyone can benefit from regular eye exams, certain people may be more likely to show early signs of heart problems in the eyes, especially if they:
- Have high blood pressure
- Have high cholesterol
- Have type 2 diabetes
- Smoke or have smoked in the past
- Have a family history of heart disease
- Are over 40 years old
If this sounds like you, make sure your eye exam includes retinal imaging (such as an OCT scan). Many optometrists now offer this as part of their standard check-up, especially in the UK. Early detection through retinal imaging can help identify vascular changes, enabling timely lifestyle adjustments or medical interventions to reduce cardiovascular risks and protect overall eye health.
What you can do today
1. Book an eye test
Even if you think your vision is fine, a check-up could reveal important clues about your health. It may reveal issues that aren't visible.
2. Ask for retinal imaging
OCT scans provide a more detailed look at your eye health and may uncover early warning signs.
3. Share your medical history
Let your eye doctor know if you have high blood pressure, diabetes, or a family history of heart disease.
4. Follow up on unusual findings
If your optician recommends further testing, don’t delay. It’s better to investigate early than wait for symptoms.
5. Look after your heart
Healthy lifestyle habits like eating well, staying active, and managing stress protect both your eyes and your heart.
Disclaimer: This article is for informational purposes only and should not be considered medical advice. Please consult a healthcare professional before making any changes to your diet, medication, or lifestyle.Not in your brain: Top neursurgeon reveals how dementia starts in the legsAlso read | What is Psoriatic Arthritis: Know its signs, causes, and how to manage
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