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The purpose of this blog is to inform, update, and at times to entertain you about your eyesight and the happenings around Pacific Eye Specialists.

We hope you enjoy - please check back for new posts often.

What Causes Nearsightedness?

Posted by administration on March 26, 2015

Girl getting her eyes checkedIf an eye doctor has diagnosed you with myopia, or nearsightedness in San Francisco, this means you have a refractive error that causes distant objects to appear blurry. Nearsighted people can usually see close objects clearly but they may need to wear corrective lenses to see well at a distance.

Nearsightedness can occur for one of two reasons:

  • The eyeball is too long
  • The cornea is too steep

When either of these conditions are present, light entering the eyes will focus in front of the retina (the back of the eye), instead of directly on the retina, causing blurred distance vision. Myopia can usually be corrected with glasses or contact lenses.

After age 21, myopia can be corrected surgically for some patients through LASIK vision correction. Our doctors perform blade-free LASIK in San Francisco to alter the shape of your cornea by removing a microscopic amount of tissue so light can focus correctly on the retina. This procedure has been highly effective in helping nearsighted people achieve 20/20 vision.

According to the American Optometric Association, nearsightedness affects almost 30% of the United States population. This vision condition usually develops in children and it may progress into a person’s early 20s. But with today’s advanced LASIK technology in San Francisco, achieving clear distance vision can be a reality.

LASIK is not right for everyone. If you are nearsighted and are curious to know if LASIK might work for your eyes, contact Pacific Eye Specialists today at 415-921-7555 to schedule a free, no-obligation LASIK Consultation. 

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Shaded Lens Technology Heading Toward “On Demand”

Posted by administration on March 20, 2015

GlassesIf you wear prescription glasses, you may have tried transitional lenses. These specialty lenses change the tint of the lens in response to the intensity of light. However, there are limitations with these lenses:

  • The transition time from clear to shaded (or vice versa) can take too long
  • The shaded adaptation may not be effective in blocking out harsh lighting situations
  • The lenses may not change in certain situations, such as when wearing a hat or driving

Scientists to the Rescue with New Lenses

Scientists, led by John Reynolds, Georgia Institute of Technology professor of chemistry & biochemistry and materials science & engineering, along with BASF, are currently developing an electrochromic polymer lens material that can change to and from clear-to-shaded in seconds. The change would be driven by a user-controlled electrical charge (like a switch) to allow for “on demand” changes. 

These revolutionary lenses may change the game for prescription eyeglass wearers – time will tell.

Even with advances in lens technology, the fact remains that wearing prescription lenses can be cumbersome and aggravating. If you are tired of the hassles of corrective lenses, find out if San Francisco blade-free LASIK is right for you. Our doctors at Pacific Eye Speicalists can assess your vision and eye characteristics to determine if your eyes are right for this popular procedure. You may even achieve 20/20 vision to reduce or eliminate your need for glasses or contacts.

To learn more about LASIK in San Francisco, contact Pacific Eye Specialists today! 

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Do You Need Reading Glasses or LASIK?

Posted by administration on March 13, 2015

reading glasses

Why is that restaurant menu so blurry?

The first step to answering that question is to identify when your blurred vision occurred. Have you had blurry vision for most of your life? Or is this a new condition that has popped up recently?

There could be many reasons why it may be hard to read things close-up:

  • Farsightedness
  • Presbyopia
  • Cataracts
  • Glaucoma
  • Or another type of eye disease

If you are farsighted, this means you have a refractive error (created by the shape of your eye or the curve of your cornea) that causes light to focus behind the retina, rather than directly on it. Farsighted individuals have trouble focusing on close-up objects. Refractive errors can be corrected through blade-free laser vision correction in San Francisco for many people.

As most people reach their 40s, a condition called presbyopia can make it difficult to focus on menus, smart phones and other near objects. Unlike a refractive error, presbyopia is caused by a gradual stiffening of the eye lens, making it harder to focus. Off-the-shelf reading glasses are available to help people combat this natural occurrence, but many dislike having to resort to “readers.” Laser vision correction, in its traditional sense, will not correct presbyopia, but there are methods such as monovision LASIK that may help improve close-up vision. This method corrects only one eye for close-up vision while the other is left with clear distance vision.

Cataracts, glaucoma and other eye diseases cannot be corrected through San Francisco LASIK. Symptoms of these conditions may include blurry vision, so if you are experiencing any changes in your vision make sure to schedule an eye exam right away. Early detection can help monitor and protect your eye health.

Back to the original question: Why is that restaurant menu so blurry? The only way to find out is by scheduling an eye exam or LASIK Consultation.

Don’t leave your eye health a mystery. Contact Pacific Eye Specialists today to schedule a free LASIK Consultation and find out if your eyes are right for San Francisco LASIK. Call (415) 921-7555 or visit to learn more. 

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Caffeine Effect on Vision

Posted by administration on March 07, 2015

caffeine effects

Do you need a little extra jolt of caffeine to get going in the mornings or afternoons? Whether you enjoy a cup of joe, tea or soda, the amount of caffeine you consume on a daily basis may be adversely affecting your vision. With March being Caffeine Awareness Month, it is the perfect time to analyze your own caffeine habits and schedule an eye exam to stay informed about your eye health.

Effect of Coffee on Vision

A study published in 2012 by the Association for Research in Vision and Ophthalmology (ARVO) suggested that consuming large amounts of caffeinated coffee may increase the risk of vision loss. According to the study, “Heavy caffeinated coffee consumption is associated with an increased risk of developing exfoliation glaucoma, the leading cause of secondary glaucoma worldwide.”

What Qualifies as “Heavy” Coffee Consumption?

In the ARVO study, researchers identified that consuming three cups or more of caffeinated coffee each day increased the risk of developing exfoliation glaucoma. The study did not link other forms of caffeine to glaucoma.

What is Glaucoma?

Glaucoma is a “silent” and slowly-progressing eye disease caused by increased pressure within the eye that eventually damages the optic nerve. Without proper treatment, glaucoma can lead to permanent blindness.

The Glaucoma Research Foundation has stated that consuming significant quantities of caffeine in a short period of time may elevate intraocular eye pressure – although there are other studies that do not indicate a connection. Regular spikes in eye pressure could damage the eyes over time.

Caffeine and Dry Eye

Even if you get your daily energy boost from other sources of caffeine besides coffee, you may still experience vision changes. Researchers at the University of Wisconsin Medical School released a study in 2004 that found caffeine increased the risk of dry eye. However, newer research in 2012 from the University of Tokyo’s School of Medicine has shown that caffeine may actually increase tear production, thereby reducing dry eye symptoms.

Symptoms of dry eye can include:

  • Blurry vision
  • Burning, itching eyes
  • Redness
  • Excessive watering
  • Eye fatigue
  • Feeling of foreign substance in the eyes

Should You Say Goodbye to Caffeine?

You probably don’t need to cut caffeine completely out of your diet. But, like most things in life, you should consume caffeine in moderation. Every person will be different in his or her ability to handle the effects of caffeine. Listen to your body and know when it’s time to cut back.

Don’t Ruin Your Efforts

If you have taken measures to improve your vision, like by having a LASIK vision correction procedure in San Francisco, you don’t want to ruin your successful efforts by treating your eyesight poorly. Even if you have achieved 20/20 vision through LASIK, it is still important to have regular eye exams to stay informed of any “silent” vision changes, like glaucoma, which may be happening without your knowledge.

To learn more about LASIK, contact Pacific Eye Specialists today at 415-921-7555 or to schedule your free LASIK Consultation

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Eye Exams for Heart Health?

Posted by administration on February 26, 2015

Heart MonthScheduling regular eye exams tends to be pushed down the “to do” list with certain people who:

  • Were born with excellent vision
  • Have had blade-free LASIK in San Francisco to get 20/20 vision

In reality, eye exams are important for everyone…not just those with poor vision. Eye exams can detect “silent” vision problems like glaucoma or cataracts in San Francisco; surprisingly most people don’t realize that eye exams can also detect early signs of heart disease, diabetes and more.

February is American Heart Month, so it’s the perfect time to make your heart health a priority by scheduling an eye exam. By examining the blood vessels in the retina, your eye doctor may be able to predict increased risk for heart issues. Cardiovascular disease is the leading cause of death in the United States.

11 Tips to Promote Heart Health

  1. Stop smoking.
  2. Reach and sustain a healthy body weight.  
  3. Get your cholesterol level checked. Adjust your diet or take medications to lower your levels, if needed.  
  4. Get your blood pressure checked regularly.
  5. If you are diabetic, monitor your blood sugar levels every day.
  6. Eat a healthy diet of fresh, non-processed foods.
  7. Exercise regularly. The Surgeon General recommends that adults aim for a minimum of 150 minutes/week of moderate intensity activities.
  8. Consume alcohol in moderation.
  9. Follow your doctor’s orders. If you need medication to control your cholesterol, blood pressure, diabetes or other conditions, make sure you are taking the proper doses at the proper times.
  10. Don’t ignore warning signs of heart problems such as dizziness, irregular heartbeat, chest pain or discomfort, shortness of breath, fatigue, nausea, sweating, etc. Contact your doctor immediately.
  11. Make doctor visits a priority. Yearly check-ups will help you stay proactive with your overall health.

Heart problems may also be identified during Consultations for certain vision procedures, such as LASIK. Our doctors at Pacific Eye Specialists takes your medical history, current physical health, eye characteristics and eye health into consideration before recommending San Francisco blade-free LASIK. This is for the safety of patients and to improve the chances for excellent vision outcomes.

Call 415-921-7555 or visit to learn more about eye health, to schedule an eye exam or to schedule a free LASIK Consultation. 

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