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Why You Should Avoid Online Eye Tests

An online eye exam is an automated and interactive vision test that claims to measure mainly visual acuity. It may seem like a convenient way to evaluate your vision or get an eyeglass or contact lens prescription, as these tests can be administered using your computer, tablet, or smartphone from the comfort of your home.

But these tests — which should not be confused with telehealth visits — are performed by a computer program, not a professional eye care practitioner, and they cannot and should not replace a comprehensive, in-person eye exam.

Online eye tests, which are impersonal and superficial by nature, can cause you to miss out on some important, even life-saving, information about your eye health and vision.

What Do Online Eye Tests Evaluate?

First off, it’s important to recognize that an online eye test does not evaluate the health of your eyes. It’s more of a vision test than an eye test, as it’s designed as an attempt to measure your visual acuity and refractive error, and, in some cases, contrast sensitivity and color blindness. Furthermore, the accuracy of the prescriptions provided by online vision tests is questionable. Providing the correct optical prescription requires the eye doctor’s direct and open communication with the patient. The right prescription needs subjective input and experienced analysis from an eye doctor — professional skills that can never be replicated accurately through an online program.

While the technology promises convenience, the American Optometric Association (AOA) advises caution, as these exams can offer misleading information and may contribute to a patient believing—incorrectly—that his or her eye health needs have been met. The online eye test measurements provide little-to-no information on the health of your eyes, and cannot determine whether you may have a sight-threatening condition such as cataracts, glaucoma, macular degeneration, or other eye diseases. Nor do online exams address problems like dry eye, retinal detachment, diabetic retinopathy, or functional vision problems — such as difficulty with eye teaming or convergence insufficiency.

The Importance of a Comprehensive Eye Exam

Optometrists undergo years of study and specialized training. They develop a comprehensive understanding of how to evaluate your eyes not only for sight, but for any underlying conditions. In fact, vision and health are closely linked. Comprehensive eye exams enable Dr. August Wallace to detect signs of diseases that may affect your entire body, but which show early signs in your eyes.

These include:

  • Hypertension
  • High cholesterol
  • Diabetes
  • Strokes
  • Sjogren’s syndrome
  • Neurological diseases, such as multiple sclerosis (MS) or a brain tumor

Is a Virtual Eye Exam Cost-Saving?

Some people erroneously believe that an online eye test can save them not only time but also money, compared with a comprehensive eye exam performed by an optometrist or ophthalmologist. It’s important to note that these virtual tests offer only a sliver of the services you’d normally receive from your eye doctor during a thorough ocular exam.

Carrying out a professional eye exam requires training, precision, and the proper equipment. Anything less can put your eyes and vision at serious risk.

Safeguard Your Eyes and Sight

A comprehensive in-person eye exam is the only way to determine whether your eyes are healthy and free from sight-threatening conditions. Early detection and treatment of these problems can potentially prevent vision loss. Eye care practitioners frequently discover an infection, chronic illness or eye disease during what patients would have expected to be a simple, routine ocular exam. These scenarios are far more common than we’d like to imagine.

To safeguard the health of your eyes and sight, have a comprehensive, in-person eye exam with Dr. August Wallace on a regular basis. Your health may depend on it.

August Wallace Eyecare Associates in Longview provides comprehensive eye exams using the most advanced equipment available. Schedule an exam with us today.

 

Your Eyes Are the Windows to Your Health

Your eyes aren’t just the windows to your soul — they can also reveal valuable information about your general health beyond whether you need glasses, including: diabetes, heart disease, and even cancer. It is not unusual for people to come in for an eye exam just to check their eyesight and then have certain health issues or predispositions picked up by the optometrist. 

Eye Exams and Your Health

Eye examinations can help doctors detect general health conditions early enough to intervene. Advanced screenings enable eye doctors to better predict cardiovascular incidents like stroke, and possibly detect signs of mental changes such as Alzheimer’s. Read below to learn how eye exams can unveil a whole lot more than just eye health.

Brain Cancer & Stroke

Because of the similarities between the blood vessels in the eye and brain, an eye doctor can occasionally detect an issue taking place in the brain by examining the blood vessels in the eyes. If swelling or shadows in the eye is observed, it may indicate a serious condition in the brain, like a tumor, or clots that might result in a stroke.

Diabetes

Diabetes can cause damage to the blood vessels in the retina at the back of the eye, resulting in Diabetic Retinopathy (DR) and Diabetic Macular Edema (DME). If an optometrist detects leaky blood vessels in the eye, the patient would be advised to see a doctor to help control their blood sugar. Changes are gradual, and they start before visual symptoms are noticed. The earlier diabetic eye disease is managed, the better the chances are of preserving eyesight. 

Hypertension

High blood pressure, characterized by having too much pressure in the blood vessels, can be detected during an eye exam, sometimes even before it’s diagnosed by your regular doctor. The damaged blood vessels lead to swelling, hemorrhages, and leaking — all of which can be observed in the eyes. According to the CDC, hypertension “the silent killer” affects nearly 1 in 3 adults, and up to a whopping 20% of those don’t even know they have it. So early detection at an eye doctor’s evaluation can be truly life-saving.

High Cholesterol 

Eye exams can also detect a buildup of cholesterol. High cholesterol is among the easiest conditions to spot during a complete eye exam, as the cholesterol deposits manifest on the front of the eye, appearing as a thin, gray rim around the cornea. It can also be detected in the retina by assessing artery and vein patterns.

These deposits may indicate the current or future development of Retinal Blood Vessel Occlusion, a condition where blockages restrict blood flow to the back of the eye, causing temporary or permanent vision loss. 

Heart Conditions

In some cases, heart conditions associated with a buildup of plaque in the carotid artery in the heart can also lead to deposits that clog the ocular arteries in the eye. If an optometrist detects such changes to the vascular structure at the back of the eye, he or she will typically recommend going to a specialist.

Multiple Sclerosis (MS)

Sudden vision loss may be attributed to Multiple Sclerosis (MS). While the optometrist can recognize signs indicating the presence of MS, such as the color and appearance of the optic nerve, such cases will be referred for further testing to confirm the diagnosis.

Thyroid

Thyroid disease can make itself apparent through the eyes in several ways. The thyroid gland controls the hormones that regulate tear production so some thyroid disorders can cause dry eye disease. Additionally, overactive thyroid (hyperthyroidism) can make the extraocular muscles enlarge and stiffen, causing bulging eyes — an indicator of Graves’ disease. 

Inflammation

Systemic conditions that are associated with inflammation in the body can have an inflammatory effect on the eyes. Uveitis, for example, causes eye inflammation, redness, and blurred vision, and tends to occur in people with lupus, rheumatoid arthritis, and other autoimmune diseases. 

Cancer

Breast cancer, leukemia, and other metastatic cancers are occasionally discovered during an eye evaluation. In addition to brain cancer mentioned above, melanoma and basal cell carcinoma (skin cancer) can be detected, and eye doctors can also diagnose lymphoma and other eye tumors. Eye exams save lives.

What the Future Holds 

Alzheimer’s 

Recent studies show that a non-invasive and precise imaging device called Octa (optical coherence tomography angiography) can signal the presence of eye changes associated with Alzheimer’s disease. Because the retina is in many ways an extension of the brain, the altered blood vessels at the back of the eye offer a glimpse into the changes taking place within the brain.

Parkinson’s Disease

Parkinson’s Disease can often be misdiagnosed as its early symptoms are characteristic of other conditions. Research has shown that subtle eye tremors, an early Parkinson’s marker, could be detectable using advanced eye exam technology. One day soon, practitioners may send patients to an eye doctor to test for this and other diseases.

Your Eye Doctor’s Appointment Could Change Your Life

So the next time you visit Dr. August Wallace at August Wallace Eyecare Associates in Longview, remember that a comprehensive eye exam can do more than determine your eyeglasses or contacts prescription. Dr. August Wallace can evaluate your eyes for existing or potential health issues, and communicate them to your primary care physician for the best possible care. By knowing that you’re at risk for a certain disease, you can take precautions early on and manage the condition as needed. After all, an ounce of prevention is worth a pound of cure.

Are Nerf Guns a Dangerous Holiday Present?

Nerf Guns: Popular, Projectile… Safe?

With the newest Nerf guns and blasters reigning at the top of lists for the most popular toys this holiday season, many parents are excited to surprise their kids (or their spouses) with these coveted toy weapons. There is, in fact a whole culture behind these guns including a variety of themes, weaponry and ammunition, making finding the right Nerf gun for your loved one an additional part of the fun. Most don’t even bat an eye…(pun intended) about the possible dangers of these guns, specifically to the eyes and vision.

The truth is, Nerf guns have been reported to cause eye injuries including corneal abrasion (or scratch on the eye), internal bleeding in and around the eye, pain, blurred vision, and temporary loss of vision. Blurry vision is sometimes due to swelling in the retina after a traumatic injury. Experts warn that they can cause irreversible damage to the eye such as a torn or detached retina and vision loss. So this, of course, begs the question: Are these a dangerous toy to buy for my loved ones?

Well despite these troublesome facts, Hasbro, the company who manufactures the guns, claims that they go to extensive lengths to ensure the toys are safe. Based on years of research, consumer insights and rigorous testing, Hasbro assures that the toys “meet or exceed global standards and regulations” for safety. That is of course, when the toys are used properly and according to the recommended guidelines.

So if, when used according to the guidelines, Nerf guns are not inherently dangerous, it is up to the parent’s discretion to assess whether they are a good choice for their family. Parents (or users of any age) need to establish proper rules and ensure that those using the guns are responsible enough to follow those rules. They should also do their part to be informed and understand the dangers and precautions necessary for safe use.

Be Informed About Nerf Gun Safety

If you do chose to purchase a Nerf gun, make sure that you do the research to ensure that you are selecting the best and safest model and accessories for your desired use. While most models are designed for children ages 8 and up, there are a few models that are specified for older children, so pay attention to the age recommendations. Do not allow children under the age limitations to play with the guns. Further, it is recommended that all children are supervised by adults during play. 

Nerf brand darts, blasters and foam rounds are made to meet strict safety regulations, while other brands that claim to be Nerf compatible may not be. Only Nerf brand bullets, designed for the specific product purchased should be used. In addition to other safety hazards, it has been seen that some bullets manufactured by other brands have a harder end which pose a greater threat for injury. 

Think about eye safety. Rule number one should always be: Never aim at anyone’s face or eyes. A direct hit to the eye can cause serious damage and pain. Ideally, the guns should be used with eye protection such as sports or protective goggles to prevent accidental eye injury, so think about adding a couple of pairs into the gift package.

Never modify the guns, darts or blasters. There are many videos online that demonstrate how to modify the guns to shoot further, harder and faster. Tampering with the guns and ammunition in this way can undermine the safety measures built into the design of the toys and could result in more serious injury. Make sure to warn children against this as well. 

The Answer

So, what’s the verdict? Whether or not Nerf guns are the right choice for your family depends on how responsible your family members can be with their use. Like many other toys and machinery, they can pose a danger when not used properly so anyone that is gifted or using this toy should be aware of those possible dangers, as well as the rules that are in place for eye safety. If you or a loved one does get injured by such a toy, get a medical evaluation immediately, especially if the injured person is experiencing blurred vision.