Eye Care Articles

Corneal refractive therapy, also known as CRT, is a simple, painless treatment for refractive eye errors like myopia and has two core benefits. First, it can be used to help patients see clearly during the day without using glasses or contact lenses, giving them the freedom and flexibility that they need to live life to the fullest. Second, CRT has been shown to help slow the progression of myopia, keeping prescriptions under control and potentially reducing the likelihood of patients developing serious eye health problems associated with high myopia in the future. 

Here’s everything that you need to know about corneal refractive therapy and what it means for you. 
 

Understanding refractive eye problems

Refractive eye problems like nearsightedness, farsightedness and astigmatism are extremely common, with nearsightedness – also known as myopia – being the most common of all. Patients with myopia can see nearby objects clearly, but those further away become progressively more blurred. Refractive eye errors occur when the shape of the clear dome covering the front part of the eye, called the cornea, impair the light-bending and focusing process in your eyes. This leads to the light ending up in the wrong place inside the eye, and the message that is sent to our brain from our eyes is muddled, causing blurred vision. 
 

What is corneal refractive therapy?

Corneal refractive therapy was initially developed as a treatment to correct and slow the progression of nearsightedness. However, it has also been found to be effective at controlling other refractive errors, including farsightedness, astigmatism and an age-related refractive condition called presbyopia.

CRT is a non-invasive, painless and straightforward method of correcting patient vision so that they don’t need to wear contacts or glasses, and they don’t need laser vision correction surgery to see clearly. CRT uses special contact lenses that are worn overnight and apply light pressure to the cornea in order to reshape it so that light is refracted correctly, and the image sent from the eyes to the brain is clear. The cornea is able to retain this new shape even after the contact lenses are removed the next morning, meaning that you can continue to see clearly for several hours. The more consistently you wear your CRT lenses overnight, the longer your eyes will learn to retain their new shape and eventually, patients can enjoy up to 48 hours of clear vision without using prescription lenses. However, the effects aren’t permanent so if you stop wearing the lenses, your vision will gradually return back to normal over the course of a few days. 
 

Slowing the progression of myopia with corneal refractive therapy

Another key benefit of CRT is that it can actually help to slow the progression of myopia. Most people who are nearsighted find that their eyesight gets progressively worse as they get older. This deterioration may not be rapid, but it can end in patients requiring high prescriptions. Studies have found that patients who have high myopia are more likely to develop serious eye problems in the future, including glaucoma, macular degeneration, cataracts and a detached retina. Regular use of your corneal refractive therapy lenses could help keep your prescription stable and lower your risk of developing these problems. 

Visual field testing is an important part of most standard comprehensive eye exams. Also sometimes known as perimetry testing, Visual field testing is a method to measure the entire scope of vision of an individual, including their peripheral/side vision.
 

The importance of visual field testing

Visual field testing is one of the most effective diagnostic treatments in the detection of glaucoma. This is because when patients are affected by glaucoma, it is usually the peripheral vision that is affected by their condition first. However, it can also be used to detect central or peripheral retinal diseases, eyelid conditions such as drooping, optic nerve damage and conditions that affect the visual pathways from the optic nerve to the area of the brain where this information is processed into vision.

Visual field testing is also an important part of monitoring for people who are considered to be at risk for vision loss from disease and other problems, including those who have been diagnosed with the following:

• Multiple sclerosis

• Hyperthyroidism

• Pituitary gland disorders

• Central nervous system problems (such as a tumor that may be pressing on the brain)

• Stroke

• Diabetes

• High blood pressure

Dry eye is a common condition that affects millions of individuals worldwide. It occurs when the eyes do not produce enough tears or the tears evaporate too quickly. This can lead to discomfort, irritation, and even vision problems. TearCare offers a breakthrough treatment option for long-lasting relief from dry eye.
 

What is TearCare?

TearCare is a revolutionary treatment option that offers long-lasting relief for dry eye sufferers. This innovative technology utilizes wearable eyelid warming devices to precisely deliver heat to the meibomian glands, effectively unclogging them and promoting healthier oil production. The treatment is performed in-office by a trained eye care professional and typically takes less than 15 minutes.

TearCare targets the root cause of the problem - meibomian gland dysfunction. By restoring the proper function of these glands, TearCare helps to stabilize the tear film, improve tear production, and alleviate the symptoms of dry eye. This breakthrough solution offers a safe and effective alternative to medications and artificial tear drops, providing long-lasting relief for those suffering from dry eye.
 

How TearCare Works to Treat Dry Eye

TearCare works by gently applying heat to the eyelids, stimulating the meibomian glands and promoting the release of healthy oils. The wearable eyelid warming devices are designed to maintain a consistent temperature, ensuring optimal results. The heat helps to liquefy any hardened oils or debris clogging the glands, allowing them to function properly again. This treatment can also help reduce inflammation and improve overall eyelid hygiene.

When it comes to diagnosing and managing complex vision conditions, precision matters. One of the most advanced tools is Medmont topography - a state-of-the-art technology that provides highly detailed maps of the cornea. Whether you are being evaluated for specialty contact lenses, dry eye treatment, or refractive surgery, Medmont topography plays a critical role in delivering accurate, customized care. 

What Is Medmont Topography? 

Medmont topography refers to corneal imaging performed with the Medmont E300 Corneal Topographer, a diagnostic device designed to capture detailed curvature measurements of the cornea. 

Using advanced Placido disc technology, the system projects illuminated rings onto the cornea and analyzes their reflections. From this data, it generates a color-coded map that reveals the shape, elevation, and curvature of the cornea with exceptional accuracy. 
 

Why Is Corneal Topography Important? 

The cornea is responsible for approximately two-thirds of the eye’s focusing power. Even subtle irregularities can significantly affect vision. Medmont topography allows your eye doctor to detect and monitor: 

• Keratoconus and other corneal ectasias

• Corneal irregularities or scarring

• Post-surgical corneal changes

• Astigmatism patterns

• Contact lens fitting complications

• Early signs of corneal distortion 

Because it provides highly detailed imaging, Medmont topography often identifies changes long before they become noticeable in a routine vision exam. 
 

How Medmont Topography Improves Contact Lens Fitting 

For patients who require specialty contact lenses - such as scleral lenses, hybrid lenses, or lenses for keratoconus - precise corneal mapping is essential. 

• The Medmont system offers: 

• High-resolution curvature data

• Wide corneal coverage

• Repeatable, reliable measurements

• Advanced software analysis 
   

This allows your doctor to design and fit custom lenses with greater accuracy, improving comfort, stability, and visual clarity while reducing trial-and-error fittings. 

Post-concussion syndrome (PCS) is a complex condition that can occur after a traumatic brain injury (TBI), such as a concussion. While the initial injury may have healed, the lingering symptoms can significantly impact your daily life, making it challenging to return to your normal routines and activities.

What is Post-Concussion Syndrome?

Post-concussion syndrome is a collection of physical, cognitive, and emotional symptoms that can persist for weeks, months, or even years after a head injury. Unlike the typical recovery from a concussion, which usually resolves within a few days or weeks, PCS can be a prolonged and debilitating experience. The symptoms of PCS can vary widely from person to person, making it a complex and often misunderstood condition.

Causes of Post-Concussion Syndrome

One of the primary causes of post-concussion syndrome is the disruption of the brain’s normal function due to the injury itself. When the brain experiences trauma, it can lead to a variety of biochemical and structural changes, which may cause the ongoing symptoms of PCS. The severity of the concussion does not always correlate with the likelihood of developing PCS; even minor concussions can lead to prolonged post-concussion symptoms in some individuals.

Another contributing factor to PCS may be related to the individual’s psychological response to the injury. Anxiety, stress, and pre-existing mental health conditions can exacerbate the symptoms of PCS and prolong the recovery process. People who have a history of migraines, anxiety disorders, or depression may be more prone to developing post-concussion syndrome.

Recognizing the Symptoms of Post-Concussion Syndrome

The symptoms of post-concussion syndrome can be diverse and can vary in severity from person to person. Some of the most common symptoms include:
 

• Physical Symptoms: Headaches, dizziness, nausea, sensitivity to light or sound, fatigue, and sleep disturbances.

• Cognitive Symptoms: Difficulty concentrating, memory problems, slower processing speed, and reduced problem-solving abilities.

• Emotional Symptoms: Irritability, mood swings, anxiety, depression, and increased emotional sensitivity.

The presence and severity of these symptoms can fluctuate over time, making it crucial to monitor your condition closely and communicate any changes to your primary care or eye doctor.