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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. 

When it comes to maintaining your eye health, regular check-ups and screenings play a crucial role. One such screening method that has revolutionized the field of optometry is retinal imaging testing. This non-invasive procedure allows optometrists to capture detailed images of the retina, providing valuable insights into the overall health of your eyes.

 

The Importance of Retinal Imaging Testing

By examining the retina, which is the thin layer of tissue at the back of your eye responsible for capturing light and transmitting visual signals to the brain, optometrists can gain valuable insights into your eye health. Retinal imaging testing allows for the early detection of various eye conditions even before noticeable symptoms occur. This early detection is crucial as it enables prompt treatment and intervention, potentially preventing irreversible vision loss.
 

Advanced Retinal Imaging Technology

Retinal imaging testing has been made possible by the advancements in technology, specifically Optical Coherence Tomography (OCT) and Optos imaging. OCT is a non-invasive imaging technique that uses light waves to capture high-resolution cross-sectional images of the retina. It provides detailed information about the layers of the retina, helping eye doctors identify and monitor various eye conditions.
 

Optos imaging utilizes ultra-widefield retinal technology to capture a panoramic image of the retina. This technology allows for a more comprehensive view of the retina, including the periphery. Dilating drops are not necessary with Optos, making the process more convenient for patients.

Dry eye is a common condition that occurs when your eyes do not produce enough tears or when the tears evaporate too quickly. This can result in discomfort, irritation, and a gritty sensation in the eyes. Understanding the causes and symptoms of dry eye is crucial for finding effective treatment options. Tyrvaya offers a breakthrough solution for dry eye relief.

What Causes Dry Eye?

There are several factors that can contribute to the development of dry eye. The meibomian glands are responsible for producing the oily component of the tear film, which helps prevent evaporation of tears and maintains a smooth ocular surface. Meibomian gland dysfunction occurs when these glands become blocked, leading to a decrease in the quantity and quality of the meibum. This can result in evaporative dry eye, discomfort, and inflammation of the eyelid margins.
 

Another common causes is age. As we get older, our tear production tends to decrease, making us more prone to dryness. Hormonal changes, such as those that occur during menopause, can also affect tear production and lead to dry eye.
 

Environmental factors can play a role as well. Dry or windy climates, air conditioning, and excessive screen time can all contribute to dry eye. Additionally, certain medications, such as antihistamines and antidepressants, can cause dryness as a side effect.
 

Other underlying health conditions, such as autoimmune diseases like Sjogren's syndrome or rheumatoid arthritis, can also contribute to dry eye. In these cases, the body's immune system mistakenly attacks the tear glands, leading to reduced tear production.

Senior eye care is crucial for maintaining optimal vision and overall eye health as we age. As individuals grow older, they become more susceptible to age-related eye conditions. Regular comprehensive eye exams play a key role in early detection and management of these conditions, helping to preserve vision and prevent potential vision loss. By staying proactive with eye care and seeking timely professional assistance, seniors can enjoy clear, comfortable vision and ongoing eye health for years to come.

Common Eye Conditions in Seniors

As we reach our golden years, there are several eye conditions that become more prevalent. These conditions can have a significant impact on our vision and overall quality of life.

• Presbyopia: This condition affects near vision, making it difficult to focus on close objects. It is a normal part of aging and is typically addressed with reading glasses or multifocal lenses.

• Floaters and Flashes: As the vitreous inside the eye changes with age, it can lead to the perception of floaters (small dark spots or lines) and flashes of light. While often harmless, sudden onset of floaters and flashes may indicate a retinal tear or detachment and should be promptly evaluated.

• Age-Related Macular Degeneration (AMD): AMD is a leading cause of vision loss in older adults. It affects the macula, the central part of the retina, leading to blurred or distorted central vision. There are two forms of AMD, dry AMD, and wet AMD, with the latter being more severe.

• Cataracts: Cataracts are a common age-related condition characterized by the clouding of the eye's natural lens. This can lead to blurry vision, glare, and difficulty seeing in low-light conditions.

• Glaucoma: Glaucoma is a group of eye conditions that damage the optic nerve, often due to elevated intraocular pressure. It can result in peripheral vision loss and, if left untreated, may lead to total blindness.

• Diabetic Retinopathy: For seniors with diabetes, diabetic retinopathy is a concern. It occurs when high blood sugar levels damage the blood vessels in the retina, leading to vision problems and potential blindness if not managed.

• Dry Eye Syndrome: Seniors may experience dry eye syndrome, characterized by insufficient lubrication and moisture on the surface of the eye. It can cause discomfort, redness, and fluctuating vision.

Vision therapy is a specialized form of treatment that aims to improve visual function and performance. It involves a series of eye exercises, activities, and visual training techniques designed to address a wide range of vision-related issues. Unlike traditional eye care, which often focuses on correcting refractive errors with glasses or contact lenses, vision therapy takes a holistic approach to addressing the underlying causes of visual problems.

By targeting the root causes of these issues, vision therapy can help individuals achieve better visual function, improve their overall well-being, and enhance their ability to perform daily tasks with greater ease and efficiency.

Amblyopia

Amblyopia, commonly known as "lazy eye," is a common vision condition that affects approximately 2-3% of the population. It occurs when one eye develops reduced visual acuity due to the brain's inability to properly process information from that eye.

In many cases, amblyopia develops during childhood, often due to factors such as refractive errors, strabismus (misaligned eyes), or visual deprivation. If left untreated, amblyopia can lead to permanent vision loss in the affected eye, as the brain increasingly favors the stronger eye and the weaker eye's visual processing abilities deteriorate.

Vision therapy is a highly effective treatment for amblyopia, as it aims to retrain the brain to properly utilize the weaker eye. Through a series of specialized exercises and activities, vision therapy can strengthen the neural pathways between the brain and the affected eye, improving visual acuity and binocular vision.

The key to successful treatment lies in the brain's remarkable ability to adapt and change, known as neuroplasticity. By engaging in targeted vision therapy, individuals with amblyopia can stimulate this neuroplasticity, allowing the brain to reorganize and improve its processing of visual information from the weaker eye.

Strabismus

Strabismus, also known as crossed eyes or misaligned eyes, is a condition where the eyes do not properly align with each other. This can cause one eye to turn inward, outward, upward, or downward, resulting in a lack of binocular vision and depth perception.

Strabismus can have a significant impact on an individual's visual function, self-esteem, and overall quality of life. Left untreated, it can lead to the development of amblyopia (lazy eye) and other vision-related problems.

Vision therapy is a highly effective treatment for strabismus, as it focuses on retraining the brain and the eye muscles to work together in a coordinated manner. Through a series of specialized exercises and activities, vision therapy can help individuals with strabismus improve their eye alignment, binocular vision, and depth perception.

Binocular Vision Disorders

Binocular vision disorders are a group of conditions that affect the way the eyes work together as a team. These disorders can result in a range of visual problems, including difficulty with depth perception, eye strain, headaches, and difficulties with reading and other visual tasks.

Some common binocular vision disorders that can be effectively treated with vision therapy include:

• Convergence Insufficiency: This condition is characterized by the inability of the eyes to properly converge, or come together, when focusing on a close object. This can lead to eye strain, headaches, and difficulties with reading and other near-work activities.

• Accommodative Dysfunction: Accommodative dysfunction is a problem with the eye's ability to focus, or "accommodate," on near objects. This can cause blurred vision, eye strain, and difficulties with reading and other close-up tasks.

• Vergence Dysfunction: Vergence dysfunction refers to a problem with the eye's ability to work together to maintain proper alignment and focus. This can lead to double vision, eye strain, and difficulties with depth perception.

Through vision therapy, individuals with binocular vision disorders can retrain their visual system to work more efficiently and effectively. The goal of vision therapy is to improve the coordination and synchronization of the eyes, ultimately leading to better visual performance and reduced visual symptoms.

Dry eye is a common condition that occurs when the eyes do not produce enough tears or when the tears evaporate too quickly. There are several factors that can contribute to dry eye, including environmental factors, hormonal changes, and certain medications. Additionally, conditions such as meibomian gland dysfunction and blepharitis can also lead to dry eye.

The Role of Meibomian Gland Dysfunction and Blepharitis in Dry Eye

Meibomian gland dysfunction occurs when the meibomian glands, which are responsible for producing the oily layer of tears, become blocked or do not function properly. This can result in the tears evaporating too quickly and not providing enough lubrication for the eyes. Blepharitis is an inflammation of the eyelids that can cause redness, itching, and a gritty sensation in the eyes. Both meibomian gland dysfunction and blepharitis can contribute to dry eye by disrupting the natural tear film.

Recognizing the Symptoms of Dry Eye

Dry eye can cause a variety of symptoms, which can vary in severity from person to person. Some common symptoms of dry eye include:

• Dryness: The most common symptom of dry eye is a feeling of dryness or grittiness in the eyes. This can make it uncomfortable to wear contact lenses or spend long periods of time looking at a screen.

• Redness: Dry eye can cause the blood vessels in the eyes to become more prominent, leading to redness and irritation.

• Itching: Some people with dry eye may experience itching or a burning sensation in their eyes.

• Excessive tearing: Dry eye can also cause excessive tearing. This is the body's response to the irritation caused by the lack of lubrication in the eyes.

If you are experiencing any of these symptoms, it is important to consult with an optometrist for a proper diagnosis and treatment plan.

Colored contacts have become increasingly popular over the years as a way to enhance your look and experiment with different eye colors. Whether you want to change your eye color for a special occasion or simply for everyday wear, colored contacts offer a fun and versatile option.

Different Types of Colored Contacts

When it comes to colored contacts, there are various types to choose from, depending on your preferences and needs. The three main categories are cosmetic, enhancement, and opaque lenses.
 

Cosmetic lenses are designed to completely change the color of your eyes. These lenses come in a wide range of shades, from natural hues such as blue, green, and brown, to more vibrant colors like purple, gray, and even red. Cosmetic lenses can create a dramatic transformation and give you the eye color you desire.
 

Enhancement lenses, on the other hand, are designed to enhance your natural eye color rather than change it completely. They add depth and intensity to your eyes, making them appear brighter and more vibrant. Enhancement lenses are ideal if you want a subtle change that enhances your natural beauty.
 

Opaque lenses are specifically designed to cover dark-colored eyes. They are ideal for individuals with naturally dark eyes who want to achieve a lighter or more vibrant eye color. Opaque lenses are often used in theatrical or costume applications as they can create a striking and captivating look.

Neurolens are the first and only prescription lenses that include an element of contoured prism in their design. This prism is designed to bring the patient’s eyes into more equal alignment, and this should help to provide relief from the symptoms that are associated with several eye misalignment conditions, including digital eye strain and binocular vision dysfunction.

What is digital eye strain?

Digital eye strain is the name given to describe a group of symptoms that can occur when someone spends long periods of time using digital devices. Since using digital devices requires the eyes to work harder than normal and we don’t always position our devices the perfect distance away, it can lead to issues such as eye pain, dry and irritated eyes, eye fatigue, light sensitivity and blurred vision. Unsurprisingly, the number of people who are experiencing digital eye strain has grown significantly over the last few years and is expected to continue to do so.

What is binocular vision dysfunction?

Binocular vision dysfunction, also known as BVD for short, is another eye condition but is one that is very misunderstood. Binocular vision dysfunction occurs when the eyes aren’t perfectly aligned, causing your brain and eyes to work harder than normal in order to create a clear visual image and remain focused. This places pressure on the trigeminal nerve, which is the nerve that is responsible for the majority of the sensations that we experience in our head and back. BVD can often manifest as other things owing to the huge range of symptoms that are associated with the condition. These can include, but aren’t limited to:

• Blurred vision

• Headaches/migraines

• Double vision

• Motion sickness

• Vertigo

• Dizziness

• Anxiety

Many people don’t think to visit an eye doctor when they are experiencing these symptoms, but all can occur simply because the eyes are out of alignment.

If you have recently undergone eye surgery, your eye doctor may recommend the use of post-surgical contact lenses as part of your recovery process. These specialized lenses are designed to aid in the healing and protection of your eyes after surgery.

Why Post-Surgical Contact Lenses May Be Necessary

After eye surgery, your eyes are in a delicate state and require extra care to ensure proper healing. Post-surgical contact lenses can play a crucial role in this process. These lenses act as a protective barrier, shielding your eyes from irritants such as dust, debris, and bright lights. They also help to maintain the shape of the cornea and aid in the prevention of infection. By wearing post-surgical contact lenses, you can minimize the risk of complications and promote a faster and smoother recovery.

Different Types of Post-Surgical Contact Lenses

There are various types of post-surgical contact lenses available, and the specific type recommended for you will depend on the nature of your surgery and your eye condition. One common type is the bandage contact lens, which is a soft, therapeutic lens that covers the cornea, providing protection and promoting healing.
 

Another type is scleral lenses, which is larger and covers a larger portion of the eye, providing enhanced protection and support. Your optometrist will determine the most suitable type of post-surgical contact lens for your individual needs.

Cataracts are a common eye condition that can significantly affect your vision. They occur when the lens of your eye becomes cloudy, causing blurred or distorted vision. This clouding is typically a result of aging, but other factors such as genetics, diabetes, or prolonged exposure to sunlight can also contribute to the development of cataracts.
 

As cataracts progress, you may experience symptoms such as difficulty seeing at night, increased sensitivity to glare, or a decrease in color perception. These changes can make daily activities like reading, driving, or recognizing faces more challenging.

Why Cataract Surgery May be Necessary

Cataract surgery is often recommended when cataracts start to interfere with your vision and affect your ability to perform daily tasks. The primary goal of cataract surgery is to remove the cloudy lens and replace it with an artificial intraocular lens (IOL).
 

The decision to undergo cataract surgery is a personal one and should be made after consulting with your optometrist. Factors such as the severity of your cataracts, your overall eye health, and your lifestyle requirements will be taken into consideration when determining if surgery is necessary.

What is Cataract Surgery Co-Management?

Cataract surgery co-management refers to the collaborative approach between an ophthalmologist, who performs the surgery, and an optometrist, who provides pre-operative and post-operative care. This partnership ensures that you receive comprehensive eye care throughout the entire process, from the initial consultation to the final follow-up appointments.
 

Your optometrist plays a crucial role in cataract surgery co-management by conducting a thorough pre-operative evaluation to assess your overall eye health and determine the most suitable IOL for your specific needs. They will also provide guidance and education on the surgical procedure, address any concerns you may have, and help you make informed decisions about your eye care.