Our Location & Hours

Our Location & Hours

Optometrist, San Ramon, Optometric Center & Eyewear Galleria

2551 San Ramon Valley Blvd.
Suite #101
San Ramon, CA 94583 View Map

Mon, Wed, Thurs: 9:00am - 6:00pm
Tuesday 9:00am - 7:00pm
Friday 10:00am - 5:00pm



The retina is the delicate tissue that lines the back of your eye.  When light strikes the retina, an image is produced that is sent as an electrical signal to the brain, enabling you to see.  


What can happen to the retina?

Your retina is the only place in the body where blood vessels can be seen directly.  This means that signs of diabetes, high blood pressure, high cholesterol, stroke, and other diseases can be seen in the retina.  Early detection is essential so that treatment can be initiated in a timely fashion.



 Optomap Diseases



Diabetic Retinopathy (DR)

Diabetes affects the eyes and the kidneys and is a leading cause of blindness.  Retinopathy occurs when diabetes damages the tiny blood vessels inside the retina.


Age-Related Macular Degeneration (AMD)

The center of the retina (the macula) can become diseased as we get older.  This results in alterations to our fine central vision making daily activities such as driving difficult.



Glaucoma causes damage to the optic nerve and almost always develops without symptoms.  


How does Optomap help?

Optomap ultra-wide digital retinal imaging system captures more than 80 % of your retina in one panoramic image. Traditional methods typically reveal only 10-15% of your retina at one time.Seeing most of the retina at once allows your eye doctor more time to review your images and educate you about your overall eye health.  This leads to early detection and better care. Numerous clinical studies have demonstrated the power of optomap as a diagnostic tool.


How often should I have an Optomap?

You should have an Optomap every time you have an eye exam (at least once a year).  This will ensure that you have a digital record of your retinal health so that any change can be compared over time.  Many vision problems begin at a early age, so it is important for children to receive proper eye care from the time they are infants.


Will I need to be dilated and does it hurt?

An Optomap takes only seconds to perform, is not painful, and typically does not require dilation.  However, your eye doctor may decide dilation is still needed.

Call our office today to schedule your comprehensive eye exam including the Optomap Retinal Exam.

BrightEye Photos 

Ocular hypertension is an increase in the pressure in your eyes that is above the range considered normal with no detectable changes in vision or damage to your eyes.  The term is used to distinguish people with elevated pressure from those with glaucoma, a serious eye disease that causes damage to the optic nerve and vision loss.


Ocular hypertension can occur in people of all ages, but it occurs more frequently in African Americans, those over age 40, and those with family histories of ocular hypertension and/or glaucoma.  It is also very common in those who are very nearsighted or have diabetes.


Ocular hypertension has no noticeable signs or symptoms.  As part of a comprehensive eye exams, your doctor of optometry can check the pressure in your eyes with an instrument called a tonometer (“air puff” test).  The inner structures of your eyes will also be examined for any potential damage.


Not all people with ocular hypertension will develop glaucoma.  However, there is an increased risk of glaucoma among those with ocular hypertension, so regular comprehensive eye exams are essential for your overall health.  


There is no cure for ocular hypertension, however, careful monitoring and treatment, when indicated, can decrease the risk of damage to your eyes.  

tearlab 1


By Michael Duong, O.D., F.A.A.O






__Fluctuation in vision

__Feeling of sand or grit in eye

__Contact lens discomfort

__Light sensitivity

__Watery eyes

__Tired eyes


*If you check two or more symptoms you may have dry eye disease and you should discuss your symptoms with your doctor.


Dry eye is a disease that affects the quality and quantity of tears on the ocular surface of the eye. This results in foreign body sensation, discomfort, redness, and visual disturbance. It is estimated that 55 million people in the US have dry eye.  The causes of dry eye include: environmental (dry or high altitude), medications (Anti-histamines, anti-depressants, birth control, beta-blockers), contact lens wear, diseases (i.e. Rheumatoid arthritis, Parkinson’s disease, Sjogrens Syndrome, Lupus, Rosacea), refractive eye surgeries, changes in hormones, and blink rate reduction.  


That’s why it is essential to get your tears analyzed by your eye doctor.  Only an eye doctor can properly diagnose your problem and treat it appropriately.  Your eye doctor will take a sample of tears from each eye and use the TearLab to measure osmolarity (the sample taken will be no larger than the period at the end of this sentence.)  

Tear lab

Osmolarity is the accepted standard for diagnosing dry eye disease.  The TearLab Osmolarity Test will give your doctor a meaningful measurement of the health of stability of your tear film.  

osmo scale


Once your doctor has determined your osmolarity number using TearLab, he or she can design a treatment regimen tailored to your specific condition.  


Call our office today to inquire about the TearLab Osmolarity Test.


Conjunctivitis is an inflammation or infection of the conjunctiva, the thin transparent layer of tissue that lines the inner surface of the eyelid and covers the white of the the eye called the sclera.  Another term for conjunctivitis is “pink eye” commonly found in children. It may affect one or both eyes and can be highly contagious. It can spread in schools and at home. Conjunctivitis is usually a minor eye infection, sometimes it can develop into a more serious problem.


Conjunctivitis may be caused by a viral or bacterial infection.  It can also occur due to an allergic reaction to irritants in the air like pollen and smoke, chlorine in swimming pools, and ingredients in cosmetics or other products that come in contact with the eyes.  


People with conjunctivitis may experience the following symptoms

  • Discharge coming from one or both eyes
  • Excessive tearing
  • Itchy or burning sensation in one or both eyes
  • Gritty feeling
  • Swollen eyelids
  • Pink discoloration to the whites of one or both eyes
  • Increased light sensitivity


Treatment of conjunctivitis is directed to three main goals:

  1. To increase patient comfort
  2. To reduce or lessen the course of the infection or inflammation
  3. To prevent spread of the infection in contagious forms of conjunctivitis


Call our office today if you are experiencing symptoms of conjunctivitis.  

Scleral Lenses 1

By Michael Duong, OD, FAAO

Scleral contact lenses are larger lenses that offer crisp vision of a gas permeable or “hard” lens with a comfort of a soft lens.   

Why are they comfortable?

All scleral lenses are made of gas permeable (GP) lens material which allows for each lens to be customized individually to match visual needs of each patient.  GP lenses allow 2-4 times more oxygen to the eyes than soft contact lenses for a healthier wearing experience. They are more durable and lenses can last up to 1-2 years.  

Scleral contact lenses are made of gas permeable material and are rigid or hard in nature.  One may think that rigid lenses would be uncomfortable. However, scleral contact lenses are much larger than traditional contact lenses and they sit on the white portion (sclera) of the eye.  Since the lenses are much larger than regular contact lenses, they do not move as much. Scleral lenses remain tucked underneath the eyelids making them very comfortable to wear.

scleral crossscleral contact 2


Why are Scleral Lenses better than other contact lenses?

The most common reason for dropping out of contact lenses is due to discomfort.  Scleral lenses provide extra moisture to the eyes and work well with people with dry eyes.  The lenses have a space that acts as a fluid reservoir which provides moisture and increasing comfort.  Many patients also drop out of contact lenses due to poor vision from astigmatism. Astigmatism means the front surface of the eye (cornea) is shaped like football rather than perfectly round.  Astigmatism is usually present at birth and due to the irregular shape, light is not focused to the back of the eye properly resulting in blurred vision.

Most contact lenses are pre-made and cannot be customized to a person’s scleral shape.  Scleral lenses are ideal for astigmatism because they create a smooth surface over the irregular cornea allowing light to be properly  focus on the back of the eye. In addition, scleral lenses are also available for multifocal and bifocal wearers. Multifocal scleral lenses provide superior optics to help with far, computer, and reading vision for those people who have failed with soft bifocal or multifocal contact lenses.

How can Scleral Lenses help me?

If you have any of the following  irregular corneal conditions, scleral lenses can help improve your vision and quality of life.  

  • Keratoconus  
  • Corneal transplant
  • Dry Eye
  • Post-LASIK, RK, or PRK
  • Trauma-damaged corneas (i.e. corneal scar due to old infection)


Please contact our office today to schedule a scleral lens consultation.  925-743-1222

Our Location & Hours

Optometrist, San Ramon, Optometric Center & Eyewear Galleria

2551 San Ramon Valley Blvd.
Suite #101
San Ramon, CA 94583 View Map

Mon, Wed, Thurs: 9:00am - 6:00pm
Tuesday 9:00am - 7:00pm
Friday 10:00am - 5:00pm