How Diabetes Affects The Eyes: Precautions You Should Take

September 6, 2024
A diabetes monitor with a dumbell, an apple, a heart, and a measuring tape on a wood background.

Read time: 5 minutes


Diabetes is a serious health condition that can affect various parts of your body, including your eyes. High blood sugar levels can lead to several eye problems, some of which can cause vision loss if not managed properly. Understanding the link between diabetes and eye health is important for taking the necessary precautions to protect your vision.


High blood sugar levels damage blood vessels over time, making diabetic individuals more susceptible to specific eye conditions. These conditions can range from mild issues, like dry eyes, to severe ones, like diabetic retinopathy. The good news is that with proper management and regular eye check-ups, many of these problems can be prevented or treated successfully.


In this article, we'll explore how diabetes affects the eyes and highlight common eye problems caused by this condition. We'll also provide actionable steps to maintain eye health and discuss the importance of regular eye exams. Taking these precautions can help you manage your diabetes more effectively and safeguard your vision.


Understanding Diabetes and Its Impact on Eye Health


Diabetes primarily affects your eyes by increasing blood sugar levels. High blood sugar can damage the tiny blood vessels in your eyes, especially in the retina. The retina is crucial for vision, and any damage to it can lead to vision problems or even blindness.


When blood vessels are damaged, they can begin to leak fluid or bleed, affecting the retina's function. Over time, this damage can accumulate, leading to more serious conditions. It's not just the retina; diabetes can impact other parts of the eye as well, affecting overall eye health and vision.


Furthermore, diabetes can slow down the healing process after eye injuries or surgeries. This means any eye issues you have may take longer to resolve if you have diabetes. Keeping your blood sugar levels in check is essential to avoid these complications and maintain healthy eyes.


Common Eye Problems Caused by Diabetes


Diabetes can lead to several eye problems. Here are the most common ones:


  1. Diabetic Retinopathy: This is a condition where high blood sugar levels damage the blood vessels in the retina. In its early stages, you may not notice any symptoms, but it can progress to more severe stages, leading to significant vision loss.
  2. Diabetic Macular Edema (DME): DME occurs when fluid accumulates in the macula, the part of the retina responsible for sharp central vision. It leads to blurred vision and can make it hard to see fine details.
  3. Glaucoma: People with diabetes are at a higher risk of developing glaucoma. Glaucoma is a condition where the pressure inside the eye increases, damaging the optic nerve and potentially leading to vision loss.
  4. Cataracts: Diabetes can cause cataracts to form at a younger age and progress more quickly. Cataracts make the lens of the eye cloudy, which obstructs vision and can lead to blindness if untreated.
  5. Dry Eyes: Diabetes can reduce the eye's ability to produce enough tears, causing dry eyes. This condition can make your eyes feel gritty, irritated, and uncomfortable.


Preventive Measures for Diabetic Eye Health


Taking steps to protect your eyes when you have diabetes is crucial. Here are some actionable measures to help maintain good eye health:


  1. Control Blood Sugar Levels: Keeping your blood sugar levels within the recommended range is the most important step. High blood sugar damages blood vessels, including those in the eyes.
  2. Monitor Blood Pressure: High blood pressure can cause additional damage to the blood vessels in your eyes. Regularly monitoring and controlling your blood pressure can help decrease this risk.
  3. Healthy Diet: Eating a balanced diet rich in fruits, vegetables, and whole grains can support eye health. Avoid high-fat and high-sugar foods, as they can impact your blood sugar and overall eye health.
  4. Exercise Regularly: Physical activity helps improve blood circulation and controls blood sugar levels. Aim for at least 30 minutes of moderate exercise most days of the week.
  5. Quit Smoking: Smoking can worsen diabetes-related eye problems. Quitting can improve your overall health and reduce the risk of complications.
  6. Stay Hydrated: Drinking plenty of water helps maintain the production of natural tears, reducing the risk of dry eyes caused by diabetes.
  7. Use Protective Eyewear: When working outside or playing sports, use protective eyewear to shield your eyes from injury and reduce the risk of infections.


The Importance of Regular Eye Exams


Regular eye exams are crucial for anyone with diabetes; they are essential for maintaining healthy vision and detecting potential eye conditions early, such as diabetic retinopathy and glaucoma, even before symptoms manifest, leading to better treatment outcomes.


  • Early Detection: Eye exams can catch early signs of diabetic eye diseases, like diabetic retinopathy and glaucoma, before symptoms appear. Early detection means better outcomes.


  • Ongoing Monitoring: Regular checkups help monitor the progression of any eye conditions, ensuring that any changes are addressed quickly.


  • Prevent Vision Loss: Timely diagnosis and treatment can prevent or slow down vision loss caused by diabetes, helping you maintain good eyesight for longer.


What to Expect During Your Eye Exam


During your eye exam, several key procedures will help your optometrist assess your eye health thoroughly. First, your doctor will dilate your pupils to examine the inside of your eyes, particularly the retina, to detect any signs of damage or abnormalities. This process involves using eye drops that temporarily widen your pupils.


Next, a visual acuity test will be conducted, where you'll read from a chart to evaluate the sharpness of your vision. This test helps determine if you need corrective lenses or if your current prescription needs adjusting.

Your eye pressure will be checked using a tonometer, which measures intraocular pressure. This is crucial for detecting conditions like glaucoma, where high pressure can damage the optic nerve.


Retinal imaging may also be performed using advanced technology to capture detailed images of the back of your eye. This provides a comprehensive view of your retina, aiding in the diagnosis of various eye conditions.


After completing these tests, your eye doctor will discuss their findings with you. They will explain any detected issues and recommend appropriate treatments or lifestyle adjustments to maintain or improve your vision health. This discussion ensures that you receive personalized care based on your exam results and any identified risks or concerns.


The Takeaway


Diabetes has a significant impact on eye health, but you can take meaningful steps to protect your vision. Understanding the common eye problems caused by diabetes and implementing preventive measures can go a long way in maintaining eye health. Regular eye exams are essential for early detection and effective management of diabetic eye conditions.


Urban Optiks Optometry, our optical shop in San Diego, is committed to helping you keep your eyes healthy. Schedule an appointment with us today to ensure your eyes get the care they need. Don't wait—take the first step toward protecting your vision by visiting our website or calling us now.

Share this blog post on social or with a friend:

The information provided in this article is intended for general knowledge and educational purposes only and should not be construed as medical advice. It is strongly recommended to consult with an eye care professional for personalized recommendations and guidance regarding your individual needs and eye health concerns.


All of Urban Optiks Optometry's blog posts and articles contain information carefully curated from openly sourced materials available in the public domain. We strive to ensure the accuracy and relevance of the information provided. For a comprehensive understanding of our practices and to read our full disclosure statement, please click here.

OUR LATEST POSTS

Woman wearing yellow-rimmed sunglasses and a cream-colored top with arms above her head.
October 22, 2025
Discover why some designs endure in fashion. Explore how eyewear luxury brands like Urban Optiks Optometry blend style with timeless quality.
Woman in profile view looking off in the distance, with a blurred person in the background.
October 17, 2025
Discover how eye movement patterns reveal emotional intelligence. Learn the science behind gaze, cultural variations, and how eye-tracking research enhances communication, leadership, and emotional skills.
Man in plaid blazer and sunglasses, standing outdoors with autumn foliage.
October 12, 2025
Discover handcrafted eyewear designed for San Diego’s fall lifestyle. Explore artisan frames at Urban Optiks Optometry that blend comfort and style.
Close-up of an eye with an abrasion, illuminated with ultraviolet light.
October 7, 2025
Read time: 5 minutes The cornea is the clear, dome-shaped surface at the front of the eye. It plays two essential roles: focusing light for sharp vision and protecting the eye’s delicate inner structures from debris and infection. Because it is both exposed and highly sensitive, the cornea is especially vulnerable to injury. A scratch or scrape on its surface is known as a corneal abrasion. While many abrasions are minor and heal quickly, they can cause significant discomfort and may lead to complications if left untreated. Knowing the causes, symptoms, and treatments can help you protect your vision and respond appropriately if an injury occurs. What Is a Corneal Abrasion? A corneal abrasion is a scratch or scrape on the epithelium, the thin outer layer of the cornea. This surface contains numerous nerve endings, which explains why even small abrasions often cause sudden, sharp pain. Along with discomfort, abrasions can also blur vision until the surface has healed. You can find out more about corneal abrasions in this article from Harvard Health Publishing . Common Causes Corneal abrasions often happen in everyday life, from something as simple as rubbing the eye too hard to environmental hazards at work or outdoors. Some of the most common causes include: Foreign particles such as dust, sand, or metal shavings entering the eye Accidental scratches , often from fingernails or makeup brushes Improper contact lens use , including wearing them overnight or with poor hygiene Paper cuts from envelopes or books Tree branches or leaves encountered outdoors Workplace hazards , especially when protective eyewear is not used Symptoms to Watch For Because the cornea is so sensitive, symptoms usually appear immediately. These may include: Sudden eye pain, especially noticeable when blinking Redness, tearing, and excessive blinking A persistent sensation of something in the eye (foreign body sensation) Light sensitivity ( photophobia ) Blurred or decreased vision Difficulty keeping the eye open These symptoms can overlap with other conditions, including corneal infections, so a professional exam is recommended rather than self-diagnosis. Diagnosis Eye doctors typically use a slit-lamp microscope to examine the cornea in detail. They may also apply a fluorescein dye, which makes scratches more visible under blue light. This exam helps confirm the abrasion and check for any trapped foreign objects. In more serious cases, or if caused by high-velocity particles, additional imaging may be used. Treatment and Healing Most corneal abrasions heal within 24 to 72 hours. Treatment focuses on pain relief, preventing infection, and supporting the natural healing process. Depending on the injury, your doctor may recommend: Lubricating drops or ointments to ease irritation Antibiotic drops to prevent infection (especially important for contact lens wearers) Prescription drops to relax eye muscles and reduce pain in some cases Avoiding contact lenses until healing is complete Protective eyewear to prevent further trauma Eye patches are rarely used today, and steroid drops are generally avoided during the initial healing period since they can slow recovery. Special Considerations for Contact Lens Wearers Contact lenses increase the risk of both abrasions and infections. Wearing lenses too long, handling them without proper hygiene, or sleeping in them can scratch the cornea and create conditions for bacterial growth. If you wear contacts and develop sudden eye pain, redness, or blurry vision, remove the lenses immediately and see your eye doctor. Continuing to wear contacts over an abrasion can worsen the injury and delay healing. When to Seek Medical Care Even if symptoms seem mild, it’s best to have corneal abrasions evaluated by an optometrist or ophthalmologist. Seek prompt care if: Pain lasts longer than 24 hours Vision becomes increasingly blurry Sensitivity to light worsens There is discharge, swelling, or signs of infection You have a history of recurrent corneal erosions Without treatment, abrasions may lead to complications such as corneal ulcers or scarring, both of which can cause permanent vision changes. Prevention  Many abrasions are preventable with good habits. Steps you can take include: Wearing protective eyewear during high-risk activities like construction, sports, or yard work Handling contact lenses with clean hands and avoiding overnight wear unless prescribed Replacing eye makeup tools regularly and keeping them clean Avoiding rubbing your eyes, especially in dusty or dry environments Using artificial tears to keep the eyes hydrated The Takeaway Corneal abrasions may be common, but they should never be ignored. With proper treatment, most heal quickly and without lasting effects. However, untreated abrasions can progress into serious eye conditions that permanently affect vision. Whether from contact lenses, workplace exposure, or everyday accidents, protecting your cornea is essential to safeguarding your eyesight. Learn more about other corneal conditions in this article from the National Eye Institute.
Woman with dark hair squinting at sunglasses with a concerned expression.
October 2, 2025
Learn what causes eyewear allergies, common frame material triggers, and hypoallergenic alternatives
Doctor holding a brain model, showing a patient, other doctors looking at scan in background.
September 27, 2025
Learn how strokes can affect vision, from field loss to eye movement issues, and discover strategies that support adaptation and visual independence.
Woman in sunglasses with shopping bags over her shoulders is smiling while outdoors.
September 22, 2025
Explore how touch, sight, and feel impact your fashion choices. Visit Urban Optiks Optometry in San Diego for an immersive sensory shopping experience.
Two women in sunglasses and fashionable accessories, smiling and posing together.
September 15, 2025
Discover how accessories and confidence transform style. Explore luxury sunglasses brands to elevate your look with Urban Optiks Optometry.
Colorfully dressed young adults posing as a photographer takes their picture.
September 11, 2025
Explore how pop culture influences your style. Discover practical tips, including contact lenses in San Diego, to enhance your everyday fashion.
A collage of images of people wearing glasses
September 4, 2025
Uncover how your personal style choices in luxury designer eyewear reflect your personality. Explore the latest trends at Urban Optiks Optometry.
Woman wearing yellow-rimmed sunglasses and a cream-colored top with arms above her head.
October 22, 2025
Discover why some designs endure in fashion. Explore how eyewear luxury brands like Urban Optiks Optometry blend style with timeless quality.
Woman in profile view looking off in the distance, with a blurred person in the background.
October 17, 2025
Discover how eye movement patterns reveal emotional intelligence. Learn the science behind gaze, cultural variations, and how eye-tracking research enhances communication, leadership, and emotional skills.
Man in plaid blazer and sunglasses, standing outdoors with autumn foliage.
October 12, 2025
Discover handcrafted eyewear designed for San Diego’s fall lifestyle. Explore artisan frames at Urban Optiks Optometry that blend comfort and style.
Close-up of an eye with an abrasion, illuminated with ultraviolet light.
October 7, 2025
Read time: 5 minutes The cornea is the clear, dome-shaped surface at the front of the eye. It plays two essential roles: focusing light for sharp vision and protecting the eye’s delicate inner structures from debris and infection. Because it is both exposed and highly sensitive, the cornea is especially vulnerable to injury. A scratch or scrape on its surface is known as a corneal abrasion. While many abrasions are minor and heal quickly, they can cause significant discomfort and may lead to complications if left untreated. Knowing the causes, symptoms, and treatments can help you protect your vision and respond appropriately if an injury occurs. What Is a Corneal Abrasion? A corneal abrasion is a scratch or scrape on the epithelium, the thin outer layer of the cornea. This surface contains numerous nerve endings, which explains why even small abrasions often cause sudden, sharp pain. Along with discomfort, abrasions can also blur vision until the surface has healed. You can find out more about corneal abrasions in this article from Harvard Health Publishing . Common Causes Corneal abrasions often happen in everyday life, from something as simple as rubbing the eye too hard to environmental hazards at work or outdoors. Some of the most common causes include: Foreign particles such as dust, sand, or metal shavings entering the eye Accidental scratches , often from fingernails or makeup brushes Improper contact lens use , including wearing them overnight or with poor hygiene Paper cuts from envelopes or books Tree branches or leaves encountered outdoors Workplace hazards , especially when protective eyewear is not used Symptoms to Watch For Because the cornea is so sensitive, symptoms usually appear immediately. These may include: Sudden eye pain, especially noticeable when blinking Redness, tearing, and excessive blinking A persistent sensation of something in the eye (foreign body sensation) Light sensitivity ( photophobia ) Blurred or decreased vision Difficulty keeping the eye open These symptoms can overlap with other conditions, including corneal infections, so a professional exam is recommended rather than self-diagnosis. Diagnosis Eye doctors typically use a slit-lamp microscope to examine the cornea in detail. They may also apply a fluorescein dye, which makes scratches more visible under blue light. This exam helps confirm the abrasion and check for any trapped foreign objects. In more serious cases, or if caused by high-velocity particles, additional imaging may be used. Treatment and Healing Most corneal abrasions heal within 24 to 72 hours. Treatment focuses on pain relief, preventing infection, and supporting the natural healing process. Depending on the injury, your doctor may recommend: Lubricating drops or ointments to ease irritation Antibiotic drops to prevent infection (especially important for contact lens wearers) Prescription drops to relax eye muscles and reduce pain in some cases Avoiding contact lenses until healing is complete Protective eyewear to prevent further trauma Eye patches are rarely used today, and steroid drops are generally avoided during the initial healing period since they can slow recovery. Special Considerations for Contact Lens Wearers Contact lenses increase the risk of both abrasions and infections. Wearing lenses too long, handling them without proper hygiene, or sleeping in them can scratch the cornea and create conditions for bacterial growth. If you wear contacts and develop sudden eye pain, redness, or blurry vision, remove the lenses immediately and see your eye doctor. Continuing to wear contacts over an abrasion can worsen the injury and delay healing. When to Seek Medical Care Even if symptoms seem mild, it’s best to have corneal abrasions evaluated by an optometrist or ophthalmologist. Seek prompt care if: Pain lasts longer than 24 hours Vision becomes increasingly blurry Sensitivity to light worsens There is discharge, swelling, or signs of infection You have a history of recurrent corneal erosions Without treatment, abrasions may lead to complications such as corneal ulcers or scarring, both of which can cause permanent vision changes. Prevention  Many abrasions are preventable with good habits. Steps you can take include: Wearing protective eyewear during high-risk activities like construction, sports, or yard work Handling contact lenses with clean hands and avoiding overnight wear unless prescribed Replacing eye makeup tools regularly and keeping them clean Avoiding rubbing your eyes, especially in dusty or dry environments Using artificial tears to keep the eyes hydrated The Takeaway Corneal abrasions may be common, but they should never be ignored. With proper treatment, most heal quickly and without lasting effects. However, untreated abrasions can progress into serious eye conditions that permanently affect vision. Whether from contact lenses, workplace exposure, or everyday accidents, protecting your cornea is essential to safeguarding your eyesight. Learn more about other corneal conditions in this article from the National Eye Institute.
Woman with dark hair squinting at sunglasses with a concerned expression.
October 2, 2025
Learn what causes eyewear allergies, common frame material triggers, and hypoallergenic alternatives