Urban Optiks Blog

Find out how the right luxury eyewear pairs bold fall style with everyday comfort for the shifting light and temps of San Diego, California.

Learn how depth perception helps you judge distance, what allows us to see in three dimensions, and the eye conditions that can affect this essential visual skill.

Not all color vision tests are the same. Discover how advanced testing provides a more complete understanding of the way you perceive color.

Read time: 4 minutes Your body is home to trillions of microorganisms that live on the skin and in areas such as the gut, mouth, and eyes. When these microbial communities remain in balance, they help support normal function and comfort. When that balance shifts, a state known as dysbiosis can occur. Dysbiosis does not mean infection. Instead, it describes a change in the normal mix of microbes—such as when helpful organisms decrease, potentially harmful ones increase, or the normal composition and diversity of the microbial community changes. Research continues to explore how dysbiosis may affect different parts of the body, including the eyes. What Is Dysbiosis? Dysbiosis refers to an imbalance in the normal microbial community of a specific area of the body. It has been most widely studied in the gut, but scientists now recognize that dysbiosis can also occur on other body surfaces. Key points to understand: Dysbiosis is not a disease by itself. Many people have changes in their microbiome without developing symptoms, and researchers are still working to understand when these changes become clinically important. It may be associated with inflammation and irritation It can make tissues more vulnerable to symptoms or flare-ups It is influenced by environment, overall health, and daily habits Cleveland Clinic explains dysbiosis as an imbalance in the body’s normal microbial community , which may contribute to inflammation and symptoms. The Evolution of Our Understanding of Microbes For many years, microbes were viewed primarily as harmful invaders. Medical care focused on eliminating bacteria whenever possible, especially on sensitive tissues like the eyes. As research tools improved, scientists discovered that healthy tissues often host small, stable microbial populations. This shifted medical thinking. Instead of assuming that all microbes were harmful, modern research recognizes that balance matters more than complete elimination. Dysbiosis emerged as a concept to describe what can happen when that balance is disrupted. Dysbiosis and the Eye The surface of the eye is exposed to air, water, and touch every day, yet it usually remains healthy. This stability depends on tear film, immune defenses, and a carefully regulated microbial environment. When dysbiosis affects the eye, it may be associated with: Increased inflammation Reduced surface comfort Greater sensitivity or irritation A higher likelihood of surface-related conditions Dysbiosis does not automatically cause eye disease, but it may contribute to symptoms when combined with other factors. The American Academy of Ophthalmology notes that healthy eyes support a small, carefully regulated microbial population on the surface. Common Factors Linked to Dysbiosis Several everyday factors may be associated with microbial imbalance: Overuse of antibiotics Chronic inflammation Environmental stressors such as prolonged dryness Contact lens wear Certain medical conditions Poor eyelid hygiene Not everyone exposed to these factors develops symptoms. Individual immune response plays a significant role. Eyelid inflammation can also influence surface balance, as explained in our blepharitis resource. Dysbiosis and Dry Eye Dry eye disease is complex and influenced by multiple factors. Research suggests that changes in the eye’s surface environment - including microbial balance - may be associated with inflammation seen in dry eye. Dysbiosis may: Disrupt tear film stability Increase inflammatory signaling Contribute to ongoing surface irritation This helps explain why dry eye care often focuses on long-term surface health, rather than temporary lubrication alone. Supporting a Healthy Microbial Balance There is no direct way to “reset” the microbiome, but supportive habits can help maintain stability. Helpful practices include: Proper contact lens hygiene Avoiding unnecessary antibiotic use Managing dry eye early Keeping eyelids clean Attending regular eye exams These habits support overall ocular surface health, which in turn helps maintain the eye's natural microbial environment. The Takeaway Dysbiosis describes a shift in the body’s normal microbial balance, not an infection or a diagnosis on its own. On the eye’s surface, this imbalance may be associated with inflammation, irritation, and conditions like dry eye when combined with other factors such as environment, hygiene, or overall health. While research into dysbiosis continues to evolve, one principle is already clear: eye health depends on balance, not sterility. As science continues to expand understanding of microbial balance, thoughtful, preventive eyecare remains the most reliable way to protect long-term comfort and vision. At Urban Optiks Optometry, that approach emphasizes surface health, early evaluation, and habits that support the eye’s natural systems over time.

Learn how summer heat, sunshine, and dry air can affect contact lens comfort, plus practical tips to help keep your eyes healthy and your vision clear.

Discover what sets luxury sunglasses apart, from premium materials and handcrafted design to advanced lenses that deliver lasting comfort, protection, and style.

Learn how dust, chemicals, wind, dry air, and water can affect contact lenses, plus practical steps to protect your eyes and prevent irritation.

Check out these simple habits that help premium eyeglasses stay comfortable, clear, and looking their best.

Learn how hormonal changes during puberty, pregnancy, menopause, and other life stages can affect vision, dry eye symptoms, and overall eye health.

Discover this summer's luxury designer eyewear trends, from bold statement frames to lightweight minimalist styles and handcrafted details that elevate every look.

Discover why your eyes water in bright sunlight, the causes of photophobia, when light sensitivity may signal an eye condition, and how to protect your vision.

Stay comfortable in the sun with luxury sunglasses that combine premium craftsmanship, exceptional comfort, glare reduction, and complete UV protection.

Find out what heterochromia is, the different types, what causes eyes to have different colors, and when changes in eye color should be evaluated.

Learn when progressive lenses work well and why dedicated reading or computer glasses may provide greater comfort, wider vision, and less eye strain.

Learn why some people sleep with their eyes open, how nocturnal lagophthalmos affects eye comfort, and when morning dryness may need professional care.

Explore ready-to-wear and prescription sunglasses for bright San Diego summers, including custom sun lenses made for any in-stock optical or sun frame.

Eye pain can sometimes come from sinus pressure, TMJ disorders, facial nerves, or muscle tension. Learn why an eye exam is the right first step.

Explore summer eyewear at Urban Optiks Optometry by browsing our virtual storefront, saving favorite frames, and visiting our San Diego boutique for expert styling.

Corticosteroids can raise eye pressure in some patients and increase glaucoma risk. Learn why athletes and active individuals should monitor long-term eye health.

Discover what happens during a typical optical visit and how Urban Optiks Optometry offers personalized eye exams, handcrafted eyewear, and boutique care in San Diego.

Discover how comprehensive eye exams can reveal early signs of vascular changes associated with heart health and why routine eye care supports overall wellness.

Learn how dry air, indoor environments, and changing seasons can affect contact lens comfort and discover personalized solutions for clearer, more comfortable vision.

Longer days and brighter light can increase glare and screen fatigue. Discover how digitally customized lenses and premium anti-reflective coatings improve visual comfort.

Indoor tanning exposes the eyes to concentrated UV radiation that may increase the risk of cataracts, corneal damage, and long-term vision problems.

See how Vinylize glasses mix bold style, record grooves, and texture into everyday wear that fits city life in San Diego without feeling overdone.

Learn why eyeglasses, contact lenses, and medications should be part of every emergency evacuation kit and how proper planning can protect vision, safety, and independence during disasters.

Find out how modern eyewear frames pair easily with spring outfits in San Diego and why they're a simple way to refresh your everyday look.

Explore the science behind red light therapy and eye health. Learn what current research says about aging vision, retinal function, and the limits of red light treatment.

Discover how digital lens measurements improve eyewear accuracy, comfort, and clarity compared to traditional manual measurements and DIY PD methods.

Learn how to prevent common eye injuries at home with practical safety tips for cooking, cleaning, yard work, DIY projects, and protecting children’s vision.

Step into a luxury optical boutique in San Diego and see how intentional design, personal care, and curated collections can change how you see and feel.

Learn why near vision gets blurry over time and how options like contact lenses in San Diego can help you read, work, and live more comfortably.

Learn how to choose between photochromic and polarized lenses and find luxury prescription sunglasses that fit your lifestyle in San Diego, California.

Arthritis can affect the eyes. Learn symptoms, risks, and why regular eye exams help detect inflammation early and support long-term eye health.

Find out how modern eyewear frames pair easily with spring outfits in San Diego and why they're a simple way to refresh your everyday look.

Learn how Botox is used in eye care to treat blepharospasm, strabismus, and other muscle disorders, with a look at its medical history, safety, and future research.

See how early standards shaped today's care at a luxury optical boutique in San Diego, where timeless quality and fit still guide every pair.

Learn how antioxidants support eye health by reducing oxidative stress, protecting the retina, and promoting long-term visual wellness through nutrition and healthy habits.

Explore the eye–brain connection and how Alzheimer’s and dementia may affect vision, visual processing, and retinal health as neurological changes occur.

Daily vs. monthly contacts: compare comfort, cost, hygiene, and convenience to choose the healthiest, most comfortable option for your lifestyle.

From vintage glam to bold new shapes, see how cat-eye frames became a lasting trend in San Diego's world of luxury designer eyewear.

Cataracts develop slowly over time, but UV exposure plays a major role. Learn how sunglasses with 100% UV protection help reduce risk and support long-term eye health.

Learn why smart features often fall short compared to well-crafted digital lenses glasses built for real-life wear in sunny San Diego.

See why men in San Diego are leaning into men's luxury eyewear that blends bold design, comfort, and a pulled-together look for work and weekend wear.

Learn how diabetes damages the tiny blood vessels in the retina, leading to diabetic retinopathy and vision loss, and why early eye exams help protect long-term sight.

Pilot vision requirements explained, including FAA standards, corrective eyewear, color vision, eye health factors, and how pilots maintain clear, safe vision in flight.

Winter sun can still damage your eyes, even on cloudy San Diego days or mountain trips. Learn why UV protection matters and how prescription sunglasses help protect your vision year-round.

Swimming in pools or the ocean can leave eyes red, dry, or irritated. Learn how chlorine and saltwater affect your eyes and how to protect your vision before and after swimming.

Learn what posterior vitreous detachment is, why it happens with age, common symptoms like floaters and flashes, how it’s diagnosed, and when to seek urgent eye care to protect long-term vision.