Dry Eye in San Francisco: Why the Fog City Makes It Worse (and What Actually Helps)
Your eyes burn by mid-afternoon. They water for no reason, then feel like sandpaper an hour later. You blink at your screen and the words go soft for a second before snapping back. If you live in San Francisco, the city itself is part of the problem.
The short answer: Dry eye happens when your eyes do not make enough tears, or the tears evaporate too fast to keep the surface comfortable. San Francisco makes it worse in three specific ways: the wind and cool marine air pull moisture off the eye, long hours on screens cut your blink rate in half, and dry indoor office air speeds up evaporation. The good news is that most dry eye is treatable once you find the real cause, and for the majority of people that cause is the oil glands in the eyelids, not a lack of water.
This guide comes from Dr. Michelle Blas, OD at Eyes in Disguise Optometry on Union Street in Cow Hollow. Here is why so many San Franciscans have dry eye, how to tell everyday irritation from true dry eye disease, and the treatments that actually fix the problem instead of just chasing it with drops.
Why San Francisco Is Hard on Your Eyes
Dry eye is common everywhere, but a few things about life here stack the deck:
- Wind and marine air: The steady breeze off the Bay, and the cool fog the city is famous for, move air across the eye and carry tear moisture away. Marina and Embarcadero commuters feel this walking to work.
- Screen-heavy work: In a tech city, most of us stare at monitors all day. Focused screen work drops your blink rate from about 15 times a minute to as few as 5, and every skipped blink means the tear film sits and evaporates.
- Dry indoor air: Heated offices, car defrosters, and airplane cabins for the frequent flyers all pull humidity out of the air and off your eyes.
- Age and hormones: Tear production naturally declines with age, and hormonal shifts, especially around perimenopause, make dry eye more likely.
None of these are things you can fully avoid living here. What you can do is treat the eye so it holds moisture better against them.
What Dry Eye Actually Feels Like
Dry eye does not always feel dry. The common symptoms are:
- Burning, stinging, or a gritty, sandy feeling
- Redness and irritation, especially late in the day
- Blurry vision that clears when you blink
- Light sensitivity and tired, heavy eyes
- Watery eyes (yes, really, watering is the eye's overreaction to a dry surface)
- Trouble wearing contact lenses as long as you used to
That last surprise, watering, sends a lot of people down the wrong path. If your eyes water constantly, it can be a sign that the surface is dry and irritated, triggering a reflex flood of the wrong kind of tears.
Most Dry Eye Is an Oil Problem, Not a Water Problem
Here is the part that changes how you treat it. A healthy tear film has three layers: water, mucus, and a thin layer of oil on top that keeps the water from evaporating. That oil comes from tiny glands along your eyelid margins called meibomian glands. When those glands get clogged, the oil layer thins, and your tears evaporate too quickly no matter how many you make. This is called meibomian gland dysfunction, or MGD, and it is the underlying cause of roughly 85 percent of dry eye cases.
This is why artificial tears alone so often fall short. Adding more water to a tear film that cannot hold water is a temporary patch. Fixing the oil glands treats the actual problem, and that is where a real dry eye evaluation makes the difference.
What You Can Do at Home
Simple habits help mild cases and support any treatment plan:
- Follow the 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds, and blink fully while you do it.
- Use a warm compress on closed eyes for a few minutes daily to help soften and release the oil in the eyelid glands.
- Add preservative-free artificial tears for symptom relief, and skip drops that promise to "get the red out," which can make things worse over time.
- Run a humidifier at your desk or bedside to fight dry indoor air.
- Position screens below eye level so your eyes are more closed and expose less surface to evaporation.
- Consider omega-3s in your diet, which support healthier gland oil for some people.
If your symptoms keep coming back after a few weeks of this, that is your cue that the glands need professional attention.
Dry Eye Treatments at Eyes in Disguise
A dry eye evaluation starts by finding your specific cause, then matches the treatment to it. At Eyes in Disguise we look at your tear quality and quantity, the structure and function of your meibomian glands, and the health of your corneal surface, then build a plan that may include:
- TearCare: An FDA-cleared, in-office therapy that delivers gentle, targeted heat to your eyelids to liquefy and release the blocked oil in the meibomian glands, followed by clearing the glands. It takes about 30 minutes, has no downtime, and treats the root cause of evaporative dry eye rather than masking it. Eyes in Disguise is one of a select group of San Francisco practices offering TearCare.
- Prescription therapies such as Restasis, Xiidra, or Cequa to calm inflammation and improve tear production.
- Punctal plugs, tiny inserts that slow tear drainage so your natural tears stay on the eye longer.
- Personalized home care, including targeted lid hygiene, omega-3 guidance, and environmental changes tailored to your work and commute.
The point of the evaluation is to stop the cycle of buying drop after drop that never quite works, and to treat the reason your eyes are dry in the first place.
When to See a Doctor About Dry Eye
Book an evaluation if your symptoms are daily, if they interfere with screen work, reading, or contact lens wear, or if drops are not holding you through the day. See us sooner if you have constant redness, light sensitivity, or vision that blurs and clears repeatedly, because chronic untreated dry eye can inflame and damage the corneal surface over time. Dry eye is easier to control the earlier you treat it.
The Bottom Line
San Francisco's wind, fog, screen-heavy workdays, and dry indoor air make dry eye especially common here, and for most people the real culprit is clogged oil glands in the eyelids rather than a simple lack of water. That is why artificial tears alone rarely solve it, and why finding the cause matters. With the right plan, including treatments like TearCare that target the glands directly, dry eye is very manageable.
Tired of eyes that burn by the afternoon? Book a dry eye evaluation at Eyes in Disguise on Union Street, or call (415) 474-5321, and Dr. Blas will find the cause and build you a plan that lasts.
Frequently Asked Questions
Why are my eyes so dry in San Francisco?
San Francisco's wind and cool marine air pull moisture off the surface of the eye, and long hours on screens cut your blink rate roughly in half, so the tear film evaporates faster than it is replaced. Dry indoor office air adds to it. Most local dry eye is evaporative, meaning the eyelid oil glands are not protecting the tears, which is treatable once identified.
What is the best treatment for dry eye?
The best treatment depends on the cause. Since about 85 percent of dry eye comes from blocked eyelid oil glands, treatments that clear those glands, such as the FDA-cleared TearCare therapy, address the root cause rather than just adding moisture. Prescription drops, punctal plugs, and home care may be combined. A dry eye evaluation identifies which approach fits you.
Why do my eyes water if they are dry?
Watery eyes are a common sign of dry eye. When the eye surface becomes dry and irritated, it triggers a reflex flood of tears that are mostly water and lack the oil needed to stay on the eye, so they spill over instead of protecting the surface. Treating the underlying dryness usually reduces the excess watering.
Do artificial tears cure dry eye?
Artificial tears relieve symptoms but do not cure dry eye, because most dry eye comes from eyelid oil glands that cannot keep tears from evaporating. Adding water to a tear film that cannot hold water is a temporary patch. Lasting relief usually requires treating the glands and any inflammation, which is what an in-office evaluation and treatment plan address.
What is TearCare and is it painful?
TearCare is an FDA-cleared, in-office dry eye treatment that applies gentle warmth to the eyelids to soften and release the blocked oil in the meibomian glands, then clears the glands. Most patients describe it as comfortable, feeling only mild warmth, and there is no downtime afterward. The session takes about 30 minutes. Eyes in Disguise is one of a select group of San Francisco practices offering it.
Can dry eye damage my vision?
Mild dry eye rarely causes permanent vision loss, but chronic, untreated dry eye can inflame and damage the corneal surface over time and affect vision quality. It can also make blurry vision and light sensitivity a daily nuisance. This is why treating persistent symptoms early, rather than living with them, is worthwhile.
How do I schedule a dry eye evaluation in San Francisco?
Call Eyes in Disguise at (415) 474-5321 or book online. The practice is at 2133 Union Street in San Francisco's Cow Hollow neighborhood, serving patients from the Marina, Pacific Heights, Russian Hill, and throughout the Bay Area. Same-week appointments are often available.
About the author: Dr. Michelle Blas, OD, is an optometrist at Eyes in Disguise Optometry in San Francisco's Cow Hollow neighborhood. A graduate of the SUNY College of Optometry and a member of the American Optometric Association, she specializes in primary and emergency eye care, dry eye treatment, diabetic eye disease, glaucoma management, and specialty contact lens fittings.
Eyes in Disguise Optometry, 2133 Union Street, San Francisco, CA 94123. (415) 474-5321.
