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Bordering Cedar Park & North Austin, minutes from Lakeline Mall. NW Corner of El Salido Pkwy & 620, behind AutoZone.
Bordering Cedar Park & North Austin, minutes from Lakeline Mall. NW Corner of El Salido Pkwy & 620, behind AutoZone.
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Eye Health

Why Do Onions Make Us Cry?

Onions are one of the most common staple foods around the globe. Ironically, for a vegetable so delicious, they can often be tear-jerkers.

Read on to learn why onions cause your eyes to tear and sting, and what you can do to minimize discomfort.

Why Does Cutting Onions Cause Tearing?

Onions produce a sulfur compound called propyl sulfoxide that is stored in the cells of the onion bulb (the part of the onion we eat). Onions grow underground, where they can be eaten by all types of creatures. This odorous sulfuric compound acts as a deterrent to small animals with big appetites.

When one slices into an onion and breaks open its cells, the sulfur compound is released and mixes with the moisture in the air — turning it into smelly and irritating sulfuric acid. When this chemical rises up and comes in contact with your eyes, it stings!

To keep your eyes from potentially being damaged from this chemical exposure, your brain triggers your eyes to tear and flush out the irritating gas particles. Once enough tears have flushed out the sulfuric acids particles from the eye, clear vision and comfort is usually restored. Although your eyes may sting and feel unpleasant, symptoms are temporary and the sulfuric acid won’t damage your eyes.

How Can I Reduce Eye Discomfort When Chopping Onions?

Most experienced chefs will tell you that chilling your onions in the fridge for at least 30 minutes before slicing them will reduce the amount of tearing they cause. Propyl sulfoxide escapes slower in cooler temperatures, reducing the amount of sulfuric acid in the air.

You can also try cutting the onions at arm’s length, or direct the odorous air away with a small fan. Some say that chopping onions immersed in water also helps. Another option is to wear kitchen goggles to protect your eyes.

Furthermore, try to use fresh onions whenever possible. The longer an onion has been stored, the more likely it will induce tearing and discomfort. Try to avoid slicing near the root end of the bulb, as that area has the highest concentration of sulfuric compounds.

Still Having Eye Problems Out of the Kitchen?

If you frequently suffer from eye irritation — and not just while cutting onions — we can help. At Lakeline Vision Source, we treat a wide range of eye conditions and can provide you with the treatment and relief you seek.

For further questions or to schedule an eye exam, call us today.

At Lakeline Vision Source, we put your family’s needs first. Talk to us about how we can help you maintain healthy vision. Call us today: 512-918-3937 or book an appointment online to see one of our Cedar Park eye doctors.

Want to Learn More? Read on!

Frequently Asked Questions with Dr. Eric Hammond, OD

Q: What exactly is glaucoma?

  • A: Glaucoma is a condition in which the eye’s intraocular pressure (IOP) is too high. This means that your eye has too much aqueous humor in it, either because it produced too much, or because it’s not draining properly. Other symptoms are optic nerve damage and vision loss. Glaucoma is a silent disease that robs the patient of their peripheral vision. Early detection is very important.

Q: What’s the difference between vision insurance and eye insurance?

  • A: Vision insurance” really isn’t insurance, but rather a benefit that covers some of your costs for eyewear and eye care. It is meant to be used for “routine” care when you aren’t having a problem but want to be sure everything is OK, like having an annual screening exam with your Primary Care Physician. It often, but not always, includes a discount or allowance toward glasses or contact lenses. It is usually a supplemental policy to your medical health insurance. Medical health insurance covers, and must be used when an eye health issue exists. This includes pink eye, eye allergies, glaucoma, floaters, cataracts, diabetes, headaches, and many other conditions. Blurry vision is covered medically if it relates to a medical condition, for example the development of a cataract. For some reason, however, it is considered non-medical if the only finding is the need for glasses or a change of prescription. Of course you can’t know this until you have the exam. In this case, with vision coverage, you would only be responsible for your co-pay, but with medical coverage without vision coverage, you’d be responsible for the usual charge.

Q: How does high blood pressure affect vision?

  • A: If the blood pressure is very high it can be called malignant hypertension and cause swelling of the macula and acute loss of vision. Otherwise hypertension can cause progressive constriction of the arterioles in the eye and other findings. Usually high blood pressure alone will not affect vision much, however hypertension is a known risk factor in the onset and/or progression of other eye disease such as glaucoma, diabetic retinopathy, and macular degeneration as well as blocked veins and arteries in the retina or nerve of the eye that can severely affect vision.

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REFERENCES

https://www.britannica.com/story/why-do-onions-make-you-cry

https://theconversation.com/why-do-onions-make-you-cry-129519

Why Are Eye Exams Important?

To ensure healthy vision, children and adults should visit their eye doctor every year for a routine comprehensive eye exam to determine whether their vision has changed, and to check for eye diseases and other health problems.

What Can Eye Exams Detect?

In addition to assessing your vision, a comprehensive eye exam can diagnose eye disease. Eye diseases can go undetected for years because their symptoms may not become apparent until the condition is at a more advanced stage. Glaucoma, diabetic retinopathy, and macular degeneration are prime examples. Unfortunately, by then it may be too late to prevent irreversible vision loss and even blindness.

For children, an eye exam can also help detect visual dysfunction, which can manifest as learning disabilities, developmental delay, or behavioral issues.

By undergoing annual comprehensive eye exams you are proactively taking measures to protect you and your child’s eye health. The earlier a visual problem is diagnosed, the better the outcome. Annual eye exams are all the more important if you have a family history of visual problems.

Older Adults Need More Frequent Monitoring

As you age, your vision changes in subtle and not-so-subtle ways. With age comes the risk of developing retinal detachment, diabetic retinopathy, glaucoma and macular degeneration. Age-related farsightedness — a natural part of the aging process — tends to develop when a person is in their 40s. For this reason older adults should visit their eye doctor more frequently for regular monitoring.

Eye Exams Can Reveal Your Overall Health

Your eyes are the windows to your overall health and reveal much more than eye problems. An eye doctor can often detect issues such as diabetes or high blood pressure by analyzing your eyes’ blood vessels. Your inflamed retina may signal a potential autoimmune disorder; blurry vision may indicate fluctuating blood sugar levels; and the bulging of the eyes may signal thyroid disease.

Protect your eye health and overall wellness by contacting Lakeline Vision Source today. We can help identify potential health problems early on, preventing irreversible damage.

At Lakeline Vision Source, we put your family’s needs first. Talk to us about how we can help you maintain healthy vision. Call us today: 512-918-3937 or book an appointment online to see one of our Cedar Park eye doctors.

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The Surge In Cosmetic Procedures During COVID Raises Eye Health Concerns

COVID-19 has indirectly impacted eye health in ways that few would have anticipated. With many classrooms, business meetings, and hang-outs being relocated to virtual settings like Zoom and FaceTime, people are spending more time scrutinizing other people’s faces — and their own.

For some people, the more time they spend watching themselves in the thumbnail, the more time they focus on real or imagined imperfections and features that make them feel insecure.

In fact, plastic surgeons and cosmetic doctors all over the world are reporting something called the ‘Zoom Boom’ — the recent surge in cosmetic procedures to perfect ‘Lockdown Face.’ Yep, it’s a thing.

What many don’t realize is that cosmetic facial procedures can pose serious risks to eye health and vision, and in some cases result in serious eye damage or vision loss.

While opting to undergo a cosmetic procedure is a personal choice that each individual should make for themselves, a fully informed decision requires a visit to your eye doctor. Also, those interested in having a cosmetic eyelid lift should consult with a reputable oculo-plastic surgeon who has experience in this particular procedure.

How Can Cosmetic Procedures Impact Your Eyes?

Before undergoing a cosmetic facial procedure, it’s important to know which procedures pose potential risks to your eyes and vision.

Eyelash Extensions

The adhesive used for eyelash extensions has been known to cause allergic lid reactions, infections, styes, and dry eye. Eye doctors unanimously agree that eyelash extensions should be the last resort for those who want fuller, thicker lashes.

Additionally, the addictive nature of eyelash extensions make them particularly risky. A side effect of lash extensions can be reduced eyelashes, which often drives the individual to have this procedure done repeatedly.

A safe alternative to getting eyelash extensions is using a medication called Latisse. This eyelash enhancing product can be prescribed by your eye doctor and may reduce the need for false eyelashes or extensions.

Laser Procedures

Lasers are used for various cosmetic procedures due to their high efficiency and accuracy. However, exposing the naked eye to a laser beam can be dangerous.

All laser procedures should be performed while the patient wears specialized goggles or corneal shields for protection. If the procedure is performed by an unlicensed individual, there is a much greater chance that effective eye protection won’t be used.

A study published in The Journal of Clinical and Aesthetic Dermatology found that ocular injuries can occur even when protective shields are utilized correctly.

Episcleral Tattoos

This procedure is the tattooing of the whites of the eye. Dye is injected beneath the conjunctiva and into the sclera (the white of the eye) to make it appear the desired color.

Episcleral tattoos can cause headaches and severe light-sensitivity, and increase the risk of eye infections, conjunctival hemorrhaging, and permanent vision loss.

Botox Injections

Botox injections are one of the most popular cosmetic procedures offered today, but they can harm eye health and vision when injected around the eye area.

Some common complications include allergic reactions, blurred vision, and droopy eyelids. Most of these reactions are temporary, but if symptoms persist and if blurred vision is prolonged, see an eye doctor immediately.

Always choose a qualified and licensed doctor to perform the procedure.

When to Visit Your Optometrist

If you are considering having any facial or eye procedures done, speak with your optometrist about how to keep your eyes safe during the process.

An eye exam with Dr. Eric Hammond, OD will determine the state of your eye health and what risks would be involved with the procedure you want.

If you’ve already undergone a cosmetic procedure or surgery and are experiencing any eye health or visual symptoms, call Lakeline Vision Source in for a prompt eye exam.

We want you to feel confident in the way you look, while keeping your eyes healthy and safe. Call Lakeline Vision Source to schedule your eye exam today.
At Lakeline Vision Source, we put your family’s needs first. Talk to us about how we can help you maintain healthy vision. Call us today: 512-918-3937 or book an appointment online to see one of our Cedar Park eye doctors.

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How Smoking Impacts Vision

Smoking harms nearly every system in your body — including your eyes. 

Though we are all aware of the health effects associated with smoking, such as lung cancer, heart disease, and bad teeth, few know about the negative impact it can have on our vision. 

Smoking and Eye Disease 

Smoking, especially 20 cigarettes or more daily over a long period of time, can adversely impact your vision. Cigarette smoke is made up of compounds that can damage health and have been shown to cause cerebral lesions which affect the area of the brain that processes vision.

More specifically, tobacco addiction increases the risk of developing vision-robbing diseases such as macular degeneration (AMD), cataracts, glaucoma, diabetic retinopathy. Moreover, smoke is an irritant that can cause or exacerbate dry eye syndrome. Below we’ll delve a little further into each of these conditions. 

Age-Related Macular Degeneration 

Smokers run a high risk of developing AMD, a condition that severely impairs central vision, making it difficult or impossible to read, drive, recognize faces and colors, and leads to permanent vision loss in those aged 65 or older. Fortunately, the risk can be dramatically diminished by putting an end to tobacco smoking — even if later in life. 

Cataracts

Heavy smokers double their risk of developing cataracts, the leading cause of blindness. Cataracts are characterized by clouded, blurred or double vision, photophobia, and reduced night vision. However, cataract surgery is common and replaces the clouded lens with an artificial intraocular lens. 

Uveitis

Uveitis, the inflammation of the eye’s central layer, is an ocular disease that can lead to blindness. This condition damages important structures of the eye, notably the iris and retina, and can lead to cataracts, glaucoma and retinal detachment. Smokers have a 2.2 times higher risk of developing uveitis than non-smokers. 

Diabetic Retinopathy

Smoking raises one’s risk of developing diabetes by up to 40 percent thereby increasing the risk of retinopathy as well. Diabetes damages the blood vessels in the retina, causing them to leak blood into the eye, which — in severe cases — can deprive the retina of oxygen and result in blindness.

Dry Eyes

Dry eye syndrome is a common eye condition characterized by insufficient tears to keep your eye lubricated, or the tears are not composed of the correct balance of water, lipids, and mucous to maintain proper lubrication. Common symptoms include red, itchy, and gritty eyes.

Heavy smokers, and those exposed to secondhand smoke, not only double their risk of developing dry eye but also exacerbate an existing condition, especially among the contact lens wearers.

Secondhand Smoke and Eye Disease 

Secondhand smoke— which includes the smoke that emanates from the end of a cigarette as well as the smoke exhaled— is nearly as harmful to health and vision. Second-hand smoke places others’ eyesight in danger, particularly in young children and infants. Furthermore, studies indicate that women who smoke during pregnancy put the newborn baby at risk of being born with eye disease or visual impairment that could affect his or her ability to learn.

Stop Smoking to Save Your Vision

The good news is that giving up smoking can have an immediate effect on your health — and it’s never too late to quit! Once the habit is broken, your body will begin to repair itself to prevent vision loss. It can be challenging to quit, as it requires dedication, support, and advanced planning. Dr. Eric Hammond, OD and the rest of the staff at Lakeline Vision Source in Cedar Park care about your health and will be happy to provide any assistance or resources to help you quit smoking and improve your eye health. Keep in mind that if you smoke, quitting smoking is the most important step you can take to protect your health and vision.

The Journey from RGPs, to Scleral Lenses, and Finally, to EyePrintPRO

Many patients who suffer from corneal disease or from post-corneal transplant complications go through a series of contact lens fits by various eye doctors. There is a range of different types of contact lenses that differ in cost, comfort, and effectiveness.

Good: RGP

Optometrists often utilize rigid gas-permeable (RGP) contact lenses with patients who are first using specialty contact lenses. RGPs are effective in treating visual errors and will give a patient decent vision. This makes them far superior to soft contact lenses and eyeglasses, which can only effectively treat lower prescriptions and less problematic corneas. They are cheaper and longer-lasting than other specialty lenses. In addition, many insurances will cover almost the entire cost of the lenses. However, RGPs are considered to be the starting contact lens among specialty contact lens fits, and they can be uncomfortable depending on the shape of the cornea and severity of the eye disease.

Better: Scleral Lenses

Scleral lenses tend to be more comfortable and advanced than RGP lenses and are a better fit for severe cases of eye disease. They can last a couple of years, which is a relatively long amount of time. Scleral lenses are rigid, but they are wider and larger than regular lenses, allowing them to fit over the cornea and onto the sclera, the white part of the eye. Since there are fewer nerves there, the lenses are more comfortable and less likely to irritate the eye.

Best: EyePrintPro

The ideal solution for patients who need specialty lenses is EyePrintPRO. This type of lens is made from a custom mold and is in no way generic. Some patients will find that they have difficulty being fitted for scleral lenses, and they are best suited to EyePrintPRO lenses. These lenses are the most costly option, as they are typically not covered by your insurance provider. However, for those who want contact lenses that are most suited for their eyes, including those who have undergone multiple surgeries and are willing to invest in their best chance for effective and comfortable vision, EyePrintPRO can be the solution. Because so few practices utilize EyePrintPro, we serve patients throughout the state.

Make an appointment at Lakeline Vision Source, and we can help you decide which contact lenses will best serve your vision.

12 Tips for Optimal Eye Health

Good Eye Care Habits & Hygiene

By practicing good eye care habits and hygiene, you can prevent many vision problems from occurring. Eye problems and the risks associated with vision loss only grow as you age. By neglecting eye care, you place yourself at a higher risk of suffering from cataracts, macular degeneration, glaucoma, diabetic retinopathy, and low vision.

So make sure you maintain great eye health by following these 12 tips for optimal eye health.

1. Avoid rubbing your eyes

Itchy eyes can be a hallmark symptom of allergies, and though rubbing may bring temporary relief, it ultimately increases swelling and worsens the itch. If you wear contact lenses, rubbing your eyes can also dislodge or even break a lens, causing the lens to get lost or scratch the cornea. Plus, eye rubbing can lead to eye infections, since our hands are typically covered with a host of germs.

2. Regularly wash your hands

Conjunctivitis (pink eye) is often caused by germs and bacteria carried to your eyes by unclean hands. Frequently washing your hands with soap and warm water helps keep bacteria away and prevents eye contamination. Prior to inserting or removing contact lenses, make sure to wash your hands with mild soap and dry them using a lint-free towel.

3. Beware of UV rays

By exposing yourself to sunlight and UV rays, you increase the risk of developing macular degeneration and corneal sunburn. Beyond just adding some style and zest to your look, sunglasses should protect your eyes from dangerous UV rays. Speak to your optometrist about the different options available for people who wear prescription eyeglasses or contact lenses too, to keep your eyes safe in the sun.

4. Stay hydrated

Staying hydrated is crucial for your body’s overall health and wellbeing — and that includes your eyes. Among other complications, if you don’t have enough fluid in your body, it impacts tear production and can cause dry eyes and irritation. Drink up!

5. Don’t smoke cigarettes

Need some extra motivation to quit smoking?

Smokers are more prone to developing age-related macular degeneration, cataracts, and other eye conditions. Cigarette smoking can also destroy optic nerves, which can adversely affect your vision over time. So think twice before you light up, and speak to your doctor about getting help to quit.

6. Eat a healthy diet

Eat plenty of fruits and vegetables to ensure that your diet is rich in antioxidants, such as Vitamins A and C. These can be found in leafy greens (your mom was right about spinach!), orange vegetables (think, carrots and sweet potato) and citrus fruit. Furthermore, fatty fish like salmon contain essential omega-3 fatty acids which also promote excellent eye health.

7. Keep a healthy distance from screens

Nip digital eye strain in the bud by positioning your computer monitor about an arm’s length away from the eyes and 20 degrees below eye level. Ideally, work in a room with enough diffused lighting to reduce stress on your eyes from the computer light.

8. Remember the 20-20-20 rule

Speaking of computers, have you heard of the 20-20-20 rule? When using digital devices, rest your eyes every 20 minutes by looking 20 feet away for 20 continuous seconds.

Once you’re at it, blink 20 times in succession to prevent dry eyes, and make it a habit to rise from your seat and take 20 steps to promote good posture and blood circulation, which helps your vision too.

9. Be careful with eye make-up

Make sure that your eye shadow, mascara, and eyeliner don’t cause your eyes an allergic reaction. Get in the habit of removing your make-up before going to sleep in order to avoid bacterial build-up from residual make-up left in the eye area. And, from time to time, clean your make-up brushes, especially those used to apply cosmetics around the eye area.

10. Sleep is golden

Just as with the rest of your body, your eyes need a break. So make sure that you get sufficient shut-eye (8 hours) each night to keep your eyes revitalized and healthy.

11. Wear protective eyewear

Whatever you do, make sure your eyes are well-protected. If you’re swimming, wear goggles to prevent chlorine from entering your eyes. If you’re gardening or engaged in a DIY project at home, wear safety glasses to keep dust particles and bacteria at bay and prevent eye injuries. Ask your local eye doctor about protective eyewear for sports and other activities.

12. Regularly visit your eye doctor

Don’t underestimate the importance of getting a routine eye exam, whether you need an updated prescription or not. Even if you can see well today, a comprehensive eye exam can pick up early signs of eye diseases and conditions before symptoms become noticeable, such as glaucoma, diabetes, retinal holes which could lead to retinal detachment, and cancers like melanoma. Early detection and management can prevent further complications and serious vision loss down the line.

Only an eye doctor has the required knowledge, experience, tools and techniques to determine whether you have these or other eye conditions.

It is recommended that everyone gets a comprehensive eye exam once a year (or at least every two years). Children, whose eyes are rapidly developing, and people at higher risk for developing eye problems such as diabetics and older people, need to undergo eye exams even more frequently: at the minimum, yearly.

During the evaluation, the eye doctor will check for things like:

  • Farsightedness, nearsightedness, astigmatism and/or presbyopia
  • Eye coordination
  • Optic nerve and eye pressure tests to spot glaucoma

It’s also important to be on the look-out for any changes in your vision. If you experience hazy or double vision, worsening eyesight, red eyes, eye pain, swelling or floaters, contact Dr. Eric Hammond, OD.

Incorporate these tips and habits into your lifestyle to maintain healthy eyes and a high quality of life. Lakeline Vision Source offers comprehensive eye exams in Cedar Park, Texas , and will be happy to answer any questions you may have about ways to maintain healthy vision.

At Lakeline Vision Source, we put your family’s needs first. Talk to us about how we can help you maintain healthy vision. Call us today: 512-918-3937 or book an appointment online to see one of our Cedar Park eye doctors.

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