If you’ve had a vision screening recently, you might say, “My vision is fine! I don’t need a comprehensive eye exam.”

But a vision screening provides a limited perspective on the overall health of your eyes. It’s a bit like getting your blood pressure checked and not getting the rest of your annual physical. You’ll have useful information, but it’s not the whole picture.

What are the Limitations of a Vision Screening?

Vision screenings only test your ability to see clearly in the distance. This is called visual acuity and is just one factor in your overall vision. Others include color vision, peripheral vision, and depth perception. The screening also doesn’t evaluate how well the eyes focus up close or work together. Most importantly, it doesn’t give any information about the health of the eyes.

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Regular eye exams are important for children since their eyes can change significantly in as little as a year as the muscles and tissue develop. Good eyesight is critical for a child’s life and achievements since success in school is closely tied to eye health. School demands intense visual involvement, including reading, writing, using computers, and blackboard/smartboard work. Even physical activities and sports require strong vision. If their eyes aren’t up to the task, a child may feel tired, have trouble concentrating, have problems in school or have difficulty playing their favorite games which may affect their overall quality of life.

When to Perform a Pediatric Eye Exam?

According to research, a child should have an initial screening between 6 and 12 months of age. After that, routine eye health and vision screenings throughout childhood should be performed in order to help detect any abnormalities as their eyes develop. Then, unless otherwise recommended, every two years thereafter until the age of 18.

For a newborn, an optometrist should examine the baby’s eyes and perform a test called “red reflex test” which is a basic indicator that the eyes are normal. In a case that the baby is premature or at high risk for medical problems for other reasons, has signs of abnormalities, or has a family history of serious vision disorders in childhood, the optometrist should perform a comprehensive exam.

You might be surprised at how many tests eye doctors use to diagnose glaucoma. A proper diagnosis requires careful evaluation of many aspects of your eye’s health – from eye pressure to cornea thickness to the health of your optic nerve. This article describes how your eye doctor assesses your risk and all the tests needed to properly diagnose glaucoma.

If you’ve been diagnosed with cataracts, you may wonder if cataract surgery is right around the corner. Not to worry. There are many preventive steps you can take to slow the progression of cataracts and preserve your vision. That doesn’t mean you won’t eventually need surgery, but you can at least delay the need for quite a while.

Protect Your Eyes from the Sun

The National Eye Institute recommends protecting your eyes from the sun's harmful ultraviolet (UV) and high-energy visible (HEV) rays by always wearing good quality sunglasses while outdoors. Look for sunglasses that block 100 percent of UV rays and absorb most HEV rays with large lenses or a close-fitting wraparound style. Remember that the peak hours for sun exposure are between 10 am and 3 pm or 11 am and 4 pm during daylight savings time and that the sun’s rays are strong enough to pass through clouds, so you need your sunglasses every day.

Macular degeneration, commonly referred to as age-related macular degeneration (AMD), is the single largest cause of sight loss in the developed world and affects more than 10 million Americans. It usually affects people over the age of 60, but has been known to affect those who are younger. It is a painless condition that usually affects both eyes with the loss being experienced in the central vision. It does not affect the peripheral vision, meaning that it does not cause total blindness.

What is the macula?

The macula is the most sensitive part of the retina and is responsible for our central vision and what allows us to see fine details with clarity.

Eye disease that is caused by diabetes is currently the number one cause of blindness and vision loss. Due to the increased risk in diabetic patients, doctors recommend that people over 30 with diabetes get an annual dilated eye exam. Diabetic patients under 30 should get this exam five years after they have been diagnosed.

Diabetic retinopathy is a condition that is caused by damage to the retina. Patients that have diabetes may also have experienced extended periods of time where their blood sugar was elevated. The high levels of blood sugar damage the retina’s walls which leaves them susceptible to leaking. When fluid accumulates in the retina or macula, it causes vision loss.

To make these matters worse, if prolonged high blood sugar levels are seen again, the retina will be oxygen-depleted. This causes the abnormal growth of new blood vessels. This condition is called neovascularization. This blood vessel type is weak and prone to leaking. As these blood vessels leak, they introduce blood into the eye. Excessive bleeding into the eye can cause blindness.

North Georgia Eye Care, LLC and Dr. Robison take pride in providing the best eye care to our patients. Part of providing quality eye care is keeping up with the latest in science and technology.

In April, 2019, we added the Maestro SD-OCT (Spectral Domain – Optical Coherence Tomography) with high resolution retinal imaging. The OCT is like an MRI or CT of the eye, but painless and quick. The results provide high definition cross sections of the eye. This advanced technology captures 50,000 A-scans/second and can help detect potential vision threatening diseases in their early stages when they are most treatable. More importantly, the doctor is able to see the layers in your eye that are invisible with traditional eye examination techniques.

Eye emergencies cover a range of incidents and conditions such as; trauma, cuts, scratches, foreign objects in the eye, burns, chemical exposure, photic retinopathy, and blunt injuries to the eye or eyelid. Since the eye is easily damaged, serious complications can occur from an eye injury thus, any of these conditions without proper treatment can lead to a partial loss of vision or even permanent blindness. Likewise, certain eye infections, other medical conditions, such as blood clots or glaucoma, and eye problems such as a painful red eye or vision loss that are not due to injury also need urgent medical attention.