what diseases can be detected in an eye exam

What Diseases Can Be Detected in an Eye Exam? A Comprehensive Guide

Reviewed by: Leslie Forehand

Your eyes are essential for vision and serve as a vital indicator of overall health. Many people think eye exams are solely for correcting vision issues, but comprehensive exams reveal much more. They allow doctors to spot early signs of various conditions, sometimes before symptoms affect daily life. Knowing what diseases can be detected in an eye exam can open up proactive paths for patients concerned about their health. 

With the number of people with visual impairment or blindness projected to double by 2050, early detection is more important than ever, enabling patients to take proactive steps toward managing their health before these conditions progress. From diabetes to autoimmune disorders, let’s see what an eye exam can uncover a wide range of conditions that might otherwise go undetected. 

what can an eye exam detect

1. Diabetes

Diabetes is one of the most common health conditions identified through an eye exam. Diabetic retinopathy, a condition affecting people with diabetes, occurs when high blood sugar levels damage the retina’s blood vessels. An eye doctor might spot early signs of diabetic retinopathy through retinal bleeding or fluid leaks. Knowing what an eye exam can detect—such as diabetic retinopathy—becomes crucial, as untreated diabetic retinopathy can lead to severe complications, including blindness. Regular eye exams for people with diabetes are essential for monitoring and maintaining eye health.

2. High Blood Pressure

An eye exam can also reveal signs of high blood pressure. Many wonder, “Can an eye exam detect high blood pressure?” The answer is yes. When blood pressure is too high, it can cause hypertensive retinopathy, where the blood vessels in the retina become damaged. High blood pressure can result in abnormal bends, kinks, or bleeding in these vessels, which are visible during an eye examination. 

Early detection of high blood pressure through eye exams can lead to preventive measures that help reduce the risk of more severe health problems, including heart disease and stroke.

3. High Cholesterol

High cholesterol is another condition that eye doctors can identify during a comprehensive exam. Spotting cholesterol in eye exams can help identify risk factors for cardiovascular issues. Cholesterol deposits can manifest in the eyes as yellowish or blue rings around the cornea, known as arcus senilis. Additionally, cholesterol may cause xanthelasma, small, yellowish bumps around the eyelids. Identifying high cholesterol early helps patients take preventive steps to avoid severe cardiovascular issues.

4. Multiple Sclerosis (MS)

Multiple sclerosis (MS) is a chronic illness that affects the central nervous system and can lead to vision problems. Eye doctors may detect MS through inflammation in the optic nerve, known as optic neuritis, which causes symptoms like blurred or double vision and eye pain. Understanding which diseases an eye exam can detect is critical, as detecting MS early through these exams allows individuals to begin treatments that may slow disease progression.

5. Brain Tumors

Visitors to our clinic often ask, ‘Can an eye exam reveal signs of a brain tumor?’ While eye exams are not diagnostic tools for brain tumors, they can sometimes provide important clues about brain health. Certain types of tumors can increase intracranial pressure, which may appear as swelling near the optic nerve, visible during a comprehensive eye exam. If an eye doctor observes unusual signs, such as optic nerve swelling or irregular pupil responses, they may suggest additional testing to investigate further.

6. Stroke

A stroke occurs when blood flow to the brain is disrupted, and symptoms may sometimes appear in the eyes. Blocked or narrowed blood vessels in the retina can signal a higher risk of stroke. Sudden changes in vision, like loss of peripheral vision or a “curtain” effect, may also be indicators. Regular eye exams are vital in spotting these signs early, helping patients take preventive actions to safeguard their health.

7. Autoimmune Disorders

Autoimmune disorders, like Sjögren’s syndrome, can have symptoms that manifest in the eyes. Sjögren’s syndrome can cause dry eye symptoms and stinging or burning sensations. Knowing what an eye exam detects helps identify these conditions early and allows patients to manage their symptoms effectively.

8. Sexually Transmitted Diseases (STDs)

Certain sexually transmitted diseases (STDs) can also impact eye health. Infections like syphilis, herpes, and HIV may exhibit ocular symptoms such as redness, inflammation, and blurry vision. Regular eye exams can help detect signs of these infections, leading to timely diagnosis and treatment. This is especially critical as some conditions can have long-term health consequences if left untreated.

9. Rheumatoid Arthritis

Rheumatoid arthritis is a chronic inflammatory disorder that often causes severe joint pain and swelling. However, it can also impact the eyes. Rheumatoid arthritis can lead to dry eye and scleritis, a painful inflammation of the white part of the eye. Eye exams can identify early signs of rheumatoid arthritis, allowing patients to seek appropriate medical care to manage their symptoms.

10. Lupus

Lupus is an autoimmune disease affecting nearly every part of the body, including the eyes. Eye-related lupus symptoms include dry eyes, inflammation in the retina, and light sensitivity. Individuals with lupus can better manage their condition and prevent vision-related complications by detecting these signs during an eye exam.

11. Sickle Cell Disease

A genetic disorder, sickle cell disease alters the shape of red blood cells, making them less effective at carrying oxygen. This condition can cause retinal blood vessel blockages, leading to vision problems or retinal detachment. Eye doctors can detect these issues during a comprehensive exam, enabling early intervention and treatment.

12. Cancer

Though less common, certain types of cancers, such as those affecting the brain, skin, and blood, may present signs in the eye. For example, ocular melanoma, a type of eye cancer, might be detectable through an eye exam. Additionally, certain blood cancers may affect the retina, leading to visual symptoms that can be spotted during an exam. Identifying cancer signs early through routine eye exams can save lives by allowing prompt treatment.

13. Thyroid Disease

Thyroid disease can cause changes in the appearance of your eyes, often referred to as “thyroid eye disease” or Graves’ ophthalmopathy. This condition may lead to eye bulging, swelling, and other symptoms around the eyes. Detecting thyroid disease early through eye exams can allow for treatment that may alleviate or prevent the progression of these symptoms.

14. Vascular Disease

Blood vessel abnormalities detected in the eye might indicate vascular diseases such as hypertension, diabetes, or high cholesterol. Vascular health is a key area when you consider what diseases can be detected in an eye exam. Eye doctors can identify blockages, narrowing, or leaks in retinal blood vessels, which may suggest underlying vascular issues. Early detection of vascular problems can be instrumental in reducing the risk of heart attacks, strokes, and other cardiovascular events.

Why Regular Eye Exams Matter

Beyond checking your vision, regular eye exams allow for early diagnosis of several conditions that may otherwise go unnoticed. Many systemic diseases, particularly those affecting the vascular and nervous systems, manifest early signs in the eyes.

With dedicated care from doctors like Dr. Michael Kelly, Dr. Lisa Litwak, and Dr. Linus Klingler, Kelly Eye Center provides expertise in detecting these subtle yet essential health markers using advanced diagnostic tools for patients throughout North Carolina.

Prioritize Your Eye Health with Regular Exams

Routine eye exams are essential in detecting health issues early, helping to safeguard both your vision and overall wellness. Many people underestimate the role of eye health in spotting underlying conditions like high cholesterol, high blood pressure, and even potential brain tumors. Regular checkups with a skilled eye doctor can make a significant difference in managing these risks before they escalate.

Take a proactive step in your health journey by scheduling an eye exam with one of our experienced professionals. Kelly Eye Center serves patients across 4 locations in North Carolina, ensuring quality eye care close to you. 

Please note that this guide’s insights are general and may not apply to your unique health needs. For personalized advice and diagnosis, consult a qualified healthcare professional.