Westside Goes to Seattle

It’s been nearly a month since Maureen, Nannette and I came home from the American Optometric Association (AOA) meeting in Seattle.  seattle starbucksWe had amazing weather, it was in the mid-80’s! Besides enjoying the weather, the abundance of coffee and a beautiful city, we attended some excellent classes.
Nannette participated an ocular anatomy workshop where she dissected a cow’s eye to better understand the structures and function of the eye. She and Maureen also went to a lensometry workshop to learn the intricacies of measuring lens prescriptions and parameters such as power, astigmatism and axis postition.
The new buzz in eyecare is the effect of blue light that is emitted from digital devices. It is thought that exposure to the blue light can cause sleep disruption and even macular damage. It’s nearly impossible to avoid our phones, tablets, computers and even TVs so blue light filters and gaming glasses are available.
Maureen went to a contact lens course which emphasized the importance of proper care, cleaning and replacement to maintain successful wear of contact lenses.
OCT AOAAll 3 of us spent time looking at new equipment and asking the vendors questions about instruments we use in our office. We found and purchased some items to use for our dry eye treatments. I also bought a device to aid in determing spectacle prescriptions for my pediatric patients.
The courses that I learned the most at were one on glaucoma and another on cataracts. In particular the cataract course described new technology and how it compared to current surgical procedures. The educator also talked about the “premium” intra-ocular lenses (IOLs) that include multi-focal and toric designs to correct most refractive errors.

We returned to Petaluma inspired and ready to implement our new knowledge.

 

 

Rosacea Awareness Month

Rosacea affects the eyes in many patients, and may result in a watery or bloodshot appearance, irritation and burning or stinging. The eyelids may also become swollen, and styes are common.

April has been designated as Rosacea Awareness Month with the intent to educate the public on the warning signs of this chronic but treatable facial disorder. Rosacea is a common but poorly understood disorder of the facial skin that is estimated to affect well over 16 million Americans — and most of them don’t know it. In fact, while rosacea is becoming increasingly widespread as the populous baby boom generation enters the most susceptible ages, a National Rosacea Society survey found that 95 percent of rosacea patients had known little or nothing about its signs and symptoms prior to their diagnosis.

Photo from National Rosacea Society
Photo from National Rosacea Society

Rosacea typically presents anytime after the age of 30 and may initially resemble a simple sunburn or an inexplicable blush. Suddenly, without warning, a flush comes to the cheeks, nose, chin or forehead. This recurs over and over with the redness lasting longer each time and eventually visible blood vessels may appear. Without treatment, bumps and pimples often develop, growing more extensive over time and burning and itching are common.

In severe cases, especially in men, the nose may become enlarged from the development of excess tissue. This is the condition that gave comedian W.C. Fields his trademark red, bulbous nose. The eyes can be affected too. Ocular involvement includes watery, burning and bloodshot eyes.

Ongoing research has suggested that rosacea may be caused by various possible factors, including defects of the immune system, nervous system, facial blood vessels and genetics. Most recently the presence of microbes and Demodex mites on the skin can trigger symptoms. Demodex are normal inhabitants of human skin but occur in far greater numbers in people with rosacea. It is believed that an immune response to bacteria associated with the mites may lead to the inflammatory bumps and pimples.

A study by a dermatologist at Duke University found a significant association between the relative presence of the mites and the development of rosacea, suggestion that the microscopic mites may be involved in the disease process. The study authors also proposed that increased mite density in the skin might trigger inflammatory response, block hair follicles or help transmit other bacteria in the skin , leading to signs and symptoms of rosacea.

Demodex mites also live in the eyelash follicles. they survive on dead skin and protein. We have found that reducing the number of Demodex living on the eyelid can reduce dry eye symptoms of burning and waterness. Controlling the Demodex requires a special cleaning solution containing a derivative of Tee Tree Oil. If you have or suspect you have rosacea and are suffering from burning red eyes, make an appointment in our dry eye clinic for evaluation and treatment.

Although the definitive cause of rosacea remains unknown, a vast array of lifestyle and environmental factors have been found to trigger flare-ups of signs and symptoms in various individuals. Common rosacea triggers include sun exposure, emotional stress, hot or cold weather, wind, heavy exercise, alcohol, spicy foods, heated beverages, humidity, certain skin-care products and potentially an overabundance of Demodex mites.

Signs and Symptoms of Rosacea

  • Redness on the cheeks, nose , chin or forehead
  • Small visible blood vessels on the face
  • Bumps or pimples on the face
  • Watery or irritated eyes

Omega-3 Eye Benefits

Salmon filet on a wooden carving board.

Omega-3 is an essential fatty acid (EFA). EFAs are important nutrients critical for the normal production and functioning of cells, muscles, nerves and organs. Fatty acids also are required for the production of hormone-like compounds that help regulate blood pressure, heart rate and blood clotting.

Several studies suggest that omega-3 fatty acids may help protect adult eyes from macular degeneration and dry eye disease. In a large European study , participants who ate oily fish like salmon at least once a week had half the risk of developing wet macular degeneration, compared with those who ate fish less than once a week.

In India a study was done with computer users. Half of the group were given 2 capsules of omega-3 fatty acids and the other group was given 2 capsules of a placebo. Each group took the supplements for 3 months. At the end of the 3 month trial a survey of the participants revealed dry eye symptoms diminished after dietary intervention with the omega-3 supplements . The omega 3 users also reduced abnormal tear evaporation and increased the density of the conjunctival goblet cells on the surface of the eye. The goblet cells secrete substances that lubricate the eye during blinks, stabilize the tear film and reduce dryness.

The typical American diet, characterized by significant amounts of meat and processed foods, tends to contain 10 to 30 times more omega-6 than omega-3 fatty acids. This imbalance of  fatty acids appears to be a contributing cause of a number of serious health problems, including heart disease, cancer, asthma, arthritis and depression.

One of the best steps you can take to improve your diet is to eat more foods that are rich in omega-3 fatty acids and fewer that are high in omega-6 fatty acids.

The best food sources of a beneficial omega-3 FA are cold-water fish. The American Heart Association recommends a minimum of two servings of cold water fish weekly to reduce the risk of cardiovascular disease, and many eye doctors likewise recommend a diet high in omega-3 fatty acids and/or supplements to reduce the risk of eye problems.

If you don’t care for the taste of fish, another way to make sure your diet contains enough omega-3 is to take fish oil supplements. These are available in capsule and liquid form and many varieties feature a “non-fishy” taste. The best time to take the supplement is with a meal so it is absorbed better.

Other good sources of omega-3 include flaxseed, flaxseed oil, walnuts and dark leafy vegetables. However, your body can’t process the vegetarian sources as easily as the fatty acid found in fish.

Too much Omega-6 can interfere with the body’s absorption of omega-3. To reduce your intake of omega-6s, avoid fried and highly process foods. Many cooking oils including sunflower oil and corn oil are very high in omega-6 fatty acids. High cooking temperatures also create harmful trans-fats.

Trans fats may contribute to a number of serious diseases, including cancer, heart disease, atherosclerosis, high blood pressure, diabetes, obesity, arthritis and immune system disorders.

For a more nutritious diet and potentially better eye health try theses simple changes:

  1. Replace cooking oils that are high in omega-6 fatty acids with olive oil, which has significantly lower levels of omega-6 fatty acids.
  2. Eat plenty of fish, fruits and vegetables.
  3. Avoid hydrogenated oils (found in many snack foods) and margarine.
  4. Avoid fried foods and foods containing trans fats.
  5. Limit your consumption of red meat.

Springtime Allergies

AllergiesEye allergies, or allergic conjunctivitis, develop when the body’s immune system reacts to an allergen that gets into the eyes. This is worse on windy days because the environmental irritants are blowing all over the place. There are mast cells under the upper eyelid. The allergens cause the mast cells to release histamine and other substances or chemicals that cause blood vessels in the eyes to swell and itch.

Although allergic conjunctivitis can’t harm your vision, it can be extremely uncomfortable, annoying and disruptive. You may become intolerant to wearing your contact lenses due to the swelling and discharge. The best way to treat your eyes for allergies is to avoid the allergens that trigger your symptoms. The most common outdoor allergens include grass, trees and weed pollens. Indoor allergens include pet hair/dander, dust mites and mold.

Complete avoidance is impossible, so treatment may be indicated. Many sufferers choose to treat their symptoms with over-the-counter allergy medication. Unfortunately, antihistamine tablets and nasal sprays commonly used for allergies are not designed to relieve eye symptoms; in fact, 73% of patients who take oral or nasal allergy medication still suffer from itchy, red eyes. Clinical research has shown that these antihistamines can cause drying of the eyes, resulting in a reduction of tear flow of up to 50%. This means there is the potential for symptoms to be more severe and longer in duration because pollens aren’t rinsed as quickly from the eyes and may accumulate.

Over-the-counter eye drops may provide some relief, but many consist of a short-acting vasoconstrictor with an antihistamine, which result in a short duration of action (usually 2 hours) and a masking of the redness rather than a treatment of the cause. There are combination drops which treat the mast cells and inhibit the histamine. To work properly, correct usage is required.

Additionally, self-diagnosis and treatment can make other conditions such as an eye infection or  dry eyes worse as some of the symptoms are the same.

Contact lens wearers may suffer added discomfort because allergens can get on the lenses, and can also cause the eye to produce excessive amounts of discharge that adhere to the contact lenses too. Clinical studies have shown that contact lens wearers suffering from allergic conjunctivitis who used prescription eye drops before inserting their lenses had significantly greater comfort. Call to make an appointment at the first hint of allergies. Treating the condition sooner results in faster and less complicated relief.

For temporary relief before you can get an eye examination, use a cold compress ( a clean washcloth with ice cubes) over the eyes for ten minutes. An artificial tear or sterile saline solution can remove allergens from the eyes. Chilling the solution adds even greater comfort.

What Happens at a Dry Eye Evaluation?

What happens at a dry eye exam?

If you are suffering from gritty, burning, red eyes; chances are your eyes are dry. The best treatment for your symptoms will depend on the cause of the condition which can be determined during a dry eye evaluation.

A dry eye exam begins with a questionnaire to help the doctor understand how dry eyes is affecting you daily and determine causes. Causes can be hormonal, medication induced, environmental factors and mechanical.

Meibomian gland dysfunctionTear quantity will be measured

Tear quality will be assessed.

The eyelids will be examined for underlying disease and contributing factors.

Once the doctor diagnoses the cause(s) of your dry eye she will develop a treatment plan.

What are dry eye treatments?

Eyelid hygiene is very important to the quality of the tears. The doctor will prescribe a hygiene program which may include hot compresses and a type of lid cleaning depending on the underlying cause of the dry eye condition.

Prescription eye drops may be required to quiet inflammation or improve the quality of tear producing goblet cells.

Non-preserved artificial tears may be prescribed

Oral supplements such as omega 3 can be prescribed to enhance tear quality.

Resolution of dry eyes takes time. Ongoing maintenance is often required to keep the eyes clear and comfortable.

How to Schedule an Evaluation

Westside Optometry is scheduling Dry Eye Visits on Thursdays. We ask that you’ve had a complete eye examination within the last 12 months, before a dry eye work-up. To schedule an exam or dry eye evaluation online hit the appropriate link below or call 707-762-8643

Schedule an Eye Examination

Schedule a Dry Eye Evaluation

Why do we Blink?

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Blinking cleans the ocular surface of debris and flushes fresh tears over the ocular surface. Each blink brings nutrients to the eye surface structures keeping them healthy.
Human are meant to blink. Not only are we meant to blink, but we are meant to blink in a particular way and at a particular frequency that ensures the renewal and revitalization of the front surface of the cornea and conjunctiva.
Blinking cleans the ocular surface of debris (dead cells, mucus and the junk that blow in the wind). It rinses fresh tears over the ocular surface. The fresh tears bring nutrients and other substances to the surface structures keeping them healthy. It helps prevent infection and clears and brightens the image received by our retina. Blinking wets the outer eye and in the case of a contact lens wearer, replenishes the tear layer upon which the contact lens floats.

Normally, a blink brings tears from the lacrimal gland which is located above the eyeball and under the brow bone, and sweeps them across the eye surface. Infrequent and incomplete blinks cause the surface of the eye to “dry” between refreshing tears. A few things will cause us to blink less often – staring at a computer for example. The blink rate slows down when reading or concentrating on a task. Paying attention to our blink rate can decrease dry eye and discomfort.

Lid structure and bad habits can prevent us from closing the eye completely with each blink.  After an incomplete blink the lower part of the eye is left exposed and without fresh tears. This is called “lagophthalmos.” Some people sleep with the eye partially open causing dessication (dryness) of the lower portion of the cornea. Not only is this uncomfortable, but can cause scarring. Nighttime lubricants and habit changes are often required to prevent complications from lagophthalmos.

Pay attention to how often you blink and how you blink. Make sure your eyelids meet with each blink and that you avoid starring when concentrating on a task.

 

Improved Dry Eye Care

Dr Staton and I spent attended the UC Berkeley School of Optometry lecture and workshop on “Dry Eye Disease: the Latest Trends in Clinical Care and Scientific Research.” Many eye conditions cause feelings of dryness, plugged meibomian glandsdiscomfort, burning, foreign body sensation or blurred vision. “Dry Eye” is a general term that is more a symptom of ocular surface disease than a cause. Many people stop wearing contact lenses because of poor tear quality. The majority of dry eye disease is caused from obstruction of the meibomian glands. The meibomian glands are located in the eyelids and secrete meibum, a substance important to the tear quality and health of the front surface of the eye. The accurate diagnosis and management of dry eye requires special evaluation that extends beyond a standard eye exam.
We have been experimenting and testing different eye drops, eyelid cleaning solutions and heat compresses to find the most cost effective and best results. Some dry eye treatments require prescription eye drops, oral medications, and/or punctual occlusion.
Dry eye can cause significant discomfort and poor vision for the person suffering from it. We are planning to aggressively treat and control dry eye causes and symptoms. Don’t be surprised if either one of us asks you to schedule a dry eye assessment. Or you can be proactive and schedule yourself.
We are starting the dry eye clinic on Thursdays and will expand as demand requires.

Aging Eyes

 

It’s a fact of life that vision can change over time, resulting in a number of noticeable differences in how aging adults see the world around them.
Common age-related vision problems include difficulty seeing things up close or far away, problems seeing in low light or at night, and sensitivity to light and glare. Some symptoms that may seem like minor vision problems may actually be signs of serious eye diseases that could lead to permanent vision loss, including:

  • Age-Related Macular Degeneration (AMD). An eye disease affecting the macula, the center of the light sensitive retina at the back of the eye. AMD can cause loss of central vision.
  • Cataracts. A clouding of the lens of the eye that usually develops slowly over time and can interfere with vision. Cataracts can cause a decrease in visual contrast between objects and their background, a dulling of colors and an increased sensitivity to glare.
  • Diabetic Retinopathy. A condition occurring in people with diabetes, which causes progressive damage to the tiny blood vessels that nourish the retina. The longer a person has diabetes, the more likely they are to develop the condition, which can lead to blindness.
  • Glaucoma. An eye disease leading to progressive damage to the optic nerve due to rising internal fluid pressure in the eye. Glaucoma is one of the leading causes of blindness.
  • Dry Eyes. Dry Eye occurs when there is insufficient tears to nourish the eyes. This can be caused by medications, hormones and environmental factors. Poor tear quality can cause dry eye symptoms too.

Many eye diseases have no early symptoms and may develop painlessly; therefore adults may not notice changes in vision until the condition is quite advanced. Healthy lifestyle choices can help ward off eye diseases and maintain existing eyesight. Eating a low-fat diet rich in green, leafy vegetables and fish, not smoking, monitoring blood pressure levels, exercising regularly and wearing proper sunglasses to protect eyes from Ultraviolet (UV) rays can all play a role in preserving eyesight and eye health. Early diagnosis, treatment of serious eye diseases and disorders is critical and can often prevent a total loss of vision, improve adults’ independence and quality of life.

The best way to prevent eye disease and continue leading an active productive live is to maintain yearly eye exams or follow the doctor’s recommendations.

Types of Contact Lenses

RGP, Soft, Hybrid, Scleral
RGP, Soft, Hybrid, Scleral

At Westside Optometry we fit not only common soft contact lenses, but specialty lenses as well. In the class of soft contact lenses we are successful with daily use, 2 week and monthly replacement modalities. Within each replacement schedule are options such as designs for astigmatism and presbyopia and different  materials. Soft contacts work well for most people, but some people are very successful in rigid gas permeables (RGP).
RGPs are excellent for achieving crisp clear and stable vision. This is especially true of higher powers and astigmatic corneas. RGPs are custom designed so I can select material, color, size and power. They last on average, 2 years.
A few years ago we added the hybrid lenses to our repertoire. Hybrid lenses blend the crisp vision of RGPs and the comfort of soft lenses. They can correct most refractive errors, myopia, hyperopia, astigmatism and presbyopia. A Hybrid contact lens will last 6 months with proper care. CL profile
Newest to our arsenal of contact lenses are the scleral lenses. This is a very large, gas permeable lens that doesn’t touch the cornea. The lens rests on the sclera allowing correction for irregular corneas such as keratoconus and post-surgical eyes. Scleral lenses are also used as a treatment for extreme dry eyes.

Contact lenses are not a one size fits all, nor a one kind fits all. Different eyes require different lenses and different lenses require different care. When fitting the best contact lens for you, we also determine the best contact lens care regime to enhance your contact lens success.

Make an appointment for an eye examination online.

Winter Eyes

Winter winds and moisture zapping heaters can cause dry, red and irritated eyes.
Tears are essential for good eye health and clear vision. They bathe the eye, washing out dust and debris, and keep the surface moist and clear. The natural tear film also contains enzymes that neutralize microorganisms, reducing the risk of eye infections.
Tear FilmThe most common signs and symptoms of dry eyes are persistent dryness and irritation, scratchiness, a burning feeling in your eyes and red eyes. Oddly enough, dry eye syndrome also can make your eyes watery, as dryness can cause a protective overproduction of the watery component of your tears.

How to prevent dry eyes in winter

Cold winter wind outdoors and dry heat indoors can cause or worsen dry eyes. Follow these tips to keep dry eyes at bay.

  • Wear sunglasses or goggles. Wearing close-fitting sunglasses outdoors reduces exposure to sun and wind that can dry out your eyes. If it’s especially cold and windy, try foam-lined goggles that provide even greater protection from tear evaporation.
  • Supplement your diet. Fish oil and other nutritional supplements containing omega-3 fatty acids can help prevent or relieve dry eye symptoms.
  • Drink more water. Mild dehydration often makes dry eyes worse, especially during dry and windy weather.
  • Switch contact lenses. If your contact lenses feel dry and uncomfortable, ask me about trying different lenses that are replaced more frequently and/or are better for someone with dry eyes.

Dry eyes may not be completely curable in certain cases, but the unpleasant Oasis Tearsdryness, scratchiness and burning sensation can be managed. We are carrying a new artificial tear called Oasis that contains long-molecule hyaluronic acid which keeps the moisture on the eye longer. Click here to read more about dry eye syndrome.