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Vision Therapy

What Are Prisms and How Do They Correct Your Double Vision?

What Are Prism Lenses?

Most patients who need eyeglasses to address nearsightedness or farsightedness are prescribed spherical and cylindrical lenses. These provide patients with excellent focus by correcting for refractive errors, so light reaches its destination.

When a patient’s binocular vision — the eyes’ ability to work together to create one clear image — isn’t well developed, a misalignment between the two eyes occurs. This can cause double vision, also known as diplopia.

When the eyes are misaligned, they struggle to work together to create a single image. Instead, they send two images to the brain, one appearing higher, lower, or to the right or left of the other image.

Prism lenses are required when a person has double vision, as the eyes are misaligned and the brain cannot fuse the two images into one single clear image. These lenses correct the misalignment as they move the perceived position of one image.

For example if you see two images and one is higher than the other, the prism lens will move the one image downwards – allowing the brain to fuse the images and removing the double vision.

Prism Lenses to Help Your Vision

Prisms are an integral part of vision therapy, which consists of customized exercises and lenses to improve visual processing by retraining the brain and eyes to work together. Prisms improve patients’ depth perception and spatial perception.

During the therapy sessions, your eye doctor will fit you with prism glasses, provide instruction, and ask what you are seeing and experiencing. These responses will provide them with valuable information on the prisms’ effectiveness.

Below are the types of exercises you may be asked to perform during a vision therapy session to test how well the prism lenses are working.

  • Balance and depth perception – For this, your eye doctor might ask you to walk to a wall or down the office’s corridor, or to hold an object and look at the top of it from an arms-length distance.
  • Peripheral Vision – While walking or holding an object, you may be asked to identify objects on either side while looking straight ahead.
  • Balance/coordination – An exercise could involve looking straight ahead while slowly walking, step by step, toe to heel while maintaining your balance.

Prism lenses and the vision therapy exercises stimulate your brain, gradually developing a stronger eye-brain connection. Your eyes will learn to work together to regain clear and comfortable vision. This, in turn, will lead to improved balance and coordination, even when you are no longer using prisms. If you have been experiencing double vision, imbalance or depth-perception problems, schedule an appointment with Calgary to discuss how vision therapy involving prisms might help.

At Calgary we will gladly answer your questions about the role prism lenses play in vision therapy.

At Browz Eyeware, we put your family’s needs first. Talk to us about how we can help you maintain healthy vision. Call us today: 587-600-0644 or book an appointment online to see one of our Calgary eye doctors.

Want to Learn More? Read on!

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How Vision Therapy Impacts Confidence & Success

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Should My Child See An Occupational Therapist Or A Vision Therapist?

vision therapy 640Parents of a child struggling to keep up at school will do almost anything to get their child the help they need. But parents don’t always know what kind of help the child needs, and from whom.

School administrators often recommend that parents bring their children to an occupational therapist (OT) to help cope with behavioral or learning problems, not realizing that the problems may stem from underdeveloped visual skills, which can be improved with a program of vision therapy (VT).

Below, we’ll explain how OT and VT differ, and offer some guidance for parents and educators. For more information or to schedule an appointment for your child, contact Vision Therapy Calgary today.

What’s the Difference Between OT and VT?

The truth is that OT and VT have a notable amount of overlap, but there are a few key differences.

Occupational therapists help people of all ages to gain/regain the ability to perform various daily tasks through the use of sensory-motor exercises and interventions. OT aims to improve gross and fine motor coordination, balance, tactile awareness, bilateral awareness, and hand-eye coordination.

Vision therapists help children and adults with poor visual skills to improve the functioning of the visual system and strengthen the eye-brain connection. Doing so can alleviate many symptoms like headaches, eye strain, dizziness, and even anxiety.

Examples of visual skills are eye teaming, tracking, focusing, depth perception, visual processing, and visual-motor skills.

How does a visual deficit look in a real world situation?

A child (even with 20/20 eyesight) may need to read a sentence several times in order to understand its meaning, or tilt their head to read the whiteboard, or may try to avoid doing any visually demanding activities. Poor performance in school and on the playing field can often be attributed to visual skill deficits.

Which Therapy Is Right For Your Child?

If a child’s visual system is the underlying cause of behavioral or learning problems, then a personalized vision therapy program may be all they need to get back on track.

So, when should you consider vision therapy for your child? The answer is simple.

If your child is struggling in school or while playing sports, have them evaluated by a vision therapist first. If they have any trouble performing visually demanding tasks like homework, reading, spelling, sports, or complain of headaches — bring them to a vision therapist for an evaluation.

The bottom line is this: no other practitioner can offer the same quality and expertise as a doctor of optometry when it comes to healing the visual system.

OT’s sometimes perform visual exercises with children, but only an eye doctor experienced in vision therapy can prescribe therapeutic lenses, prisms, and filters that greatly enhance the healing process.

It’s also important to note that not every optometrist is trained in vision therapy. You’ll want to choose an eye doctor with experience in diagnosing and treating people of all ages with all types of visual dysfunction.

Additionally, even if your child passes the school’s vision screening, they may still have a problem with visual processing and other skills. School vision screenings only test for visual acuity (eyesight) and neglect the other very important visual skills that enable a child to succeed.

Since the visual system is highly integrated with other systems, an interdisciplinary approach is often the most effective. OT and VT don’t always have to be undertaken simultaneously, but some children benefit from this type of holistic approach.

If your child is struggling with learning or behavioral problems, their vision could be an underlying cause or contributing factor. To schedule your child’s functional visual evaluation, contact Vision Therapy Calgary today.

Frequently Asked Questions with Our Vision Therapist

Q: My child is struggling in school. Should I have his/her eyes examined?

  • A: A comprehensive eye examination by an optometrist can often determine if there are visual issues interfering with a child’s ability to perform in school. Many visual symptoms, some obvious, others less so, can contribute to a child’s poor academic achievement. Some of these issues can be alleviated with a good pair of eyeglasses while others may require vision therapy. All the doctors at Eye Vision Associates are trained in the diagnosis of vision related learning problems.

Q: What are some of the learning difficulties a child may encounter if they have vision issues?

  • A: Children may have difficulty reading if their near vision is blurry or the words jump around the page. Older children may have difficulty copying from the board at the front of the class or may struggle with math homework that has multiple questions on the page.

We encourage you to contact Vision Therapy Calgary today for a vision therapy evaluation to assess if their vision is what has held them back in their studies.

Vision Therapy Calgary serves patients from Bridgeland, Macleod Trail, Panorama Hills, and S. Trail Crossing, all throughout Alberta.


 

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Call Us 587-317-9897

How Vision Therapy Impacts Confidence & Success

Mom Daughter Child Eye HealthBuilding confidence in children is critical to their success. However, children with poorly developed visual skills tend to lack confidence in their abilities. They may struggle to keep up in school, finding it difficult to concentrate in the classroom, or be unable to catch a ball when playing on the sports field.

Fortunately, vision therapy can help children (and adults) develop the specific visual skills they lack, offering them the best opportunities to enhance their comprehension, increase their reading level and attention span, and improve their sports performance.

This, in turn, directly impacts their confidence levels.

How Does Vision Therapy Work?

The primary goal of vision therapy is to improve the child’s visual skills. A child can have 20/20 vision and yet have underdeveloped visual skills. Poor visual skills impede the ability of the eyes, brain, and body to work as a team. Vision therapy develops and enhances this communication, allowing people with visual dysfunction to process and react to visual information faster and more efficiently.

Vision Therapy Process

A vision therapy program consists of visual exercises specifically tailored to the patient’s individual visual needs. Depending on the type and level of visual dysfunction, the eye doctor will prescribe a personalized program of exercises to develop the communication between the brain and the visual system. Eye doctors also use tools such as specialized optical lenses, eye patches, prisms, balance boards, and digital simulations to train the brain-eye connection.

Visual Skills

There are several visual skills that vision therapy helps to improve. These include:

  • Saccades – the eyes’ ability to move quickly or “jump” between two or more focus points. This skill is crucial for reading, as children need to be able to move their eyes along a straight line without straying to other lines.
  • Pursuits or Tracking – the eyes’ ability to smoothly track a moving target. This skill allows a child’s eyes to glide along with a page and also to catch, hit, or kick a moving ball.
  • Convergence – the eyes’ ability to work together as a team in order to focus on a nearby object like a book or computer screen..
  • Accommodation Flexibility – the eyes’ ability to continuously change focus between near and distant objects. This is the skill required when a child looks at the blackboard and then copies the writing into a notebook.
  • Accommodation – The eyes’ ability to maintain focus on close-up activities. This skill is needed for homework and for using a computer for many hours.
  • Visual Memory – The ability to remember words and information. Good visual memory is essential for spelling.
  • Color Perception – The ability to distinguish between various colors. This skill is essential for the accurate interpretation of color-coded materials, such as graphs and charts.
  • Fine Visual-Motor – The ability to engage in close-up activities with accuracy and comfort. This skill is needed for reading, writing, cutting with scissors, and assembling a puzzle.
  • Visual Integration – The ability to combine your vision with your other senses to perform complex tasks. This skill is required to process various forms of visual information accurately and quickly. Visual integration is crucial for a student copying from the board and analyzing the information.

Confidence And Success Building

Developing visual skills can help children meet the demands of school, improve their grades, and allow them to gain confidence in the classroom. Vision therapy can also lead to improved hand-eye coordination and allow them to have more fun on the sports field. In fact, vision therapy can be a key component in preparing children for higher education. As they master new skills, they feel more confident in their abilities.

Keep in mind that school eye screenings and most regular eye exams evaluate eyesight, but do not assess the essential visual skills required for sports, reading, and learning. Only a comprehensive vision exam can determine whether a child has poor visual skills. Contact Vision Therapy Calgary to book a vision exam to assess your child’s visual skills. We can create a tailor-made vision therapy program to help your child succeed and reach their full potential.

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Call Us 587-317-9897

Mental Health and Your Vision

May is Mental Health Awareness Month in the USA; in Canada, Mental Health week is May 6th to 12th. Since 1949, it has been observed throughout the United States as a way of drawing attention to the importance of proper mental health. This year’s theme is #4Mind4Body. The idea is that using elements around us, such as the people in our lives, faith, nature, and even pets, can strengthen wellness and overall mental health.

Did you know that your vision can affect your mental health? While things like stress, trauma, and family history are factors that impact mental health, vision can also impact it.

How Does Vision Affect Mental Health?

Certain types of eye diseases and visual impairments can lead to emotional problems like anxiety and depression. This is particularly common in cases of severe vision loss. Patients with glaucoma, macular degeneration, or diabetic retinopathy, for example, can experience mild to acute vision loss. This can make everyday activities like driving, running errands, watching TV, using a computer, or cooking, a difficult and painful experience. When this happens, it can cause a loss of independence, potentially leaving the person mentally and emotionally devastated.

Like most surgical procedures, LASIK corrective surgery is permanent and irreversible. Although it has very high success rates, LASIK has been considered the cause of depression and mental health issues in a few instances.

Kids’ Vision and Mental Health

Increased screen time among school-age children and teens has been shown to reduce emotional stability and cause repeated distractions and difficulty completing tasks, while also increasing the likelihood of developing nearsightedness.

Kids with visual problems often experience difficulty in school. If they can’t see the board clearly or constantly struggle with homework due to poor vision, they may act out their frustration or have trouble getting along with their peers.

Coping with Vision Problems

One of the most important ways to cope with visual problems is awareness. Simply paying attention to the signs and symptoms — whether the patient is an adult or a child — is a crucial first step. 

Family members, close friends, colleagues, parents, and teachers can all play an important role in detecting emotional suffering in those with visual difficulties. Pay attention to signs of changes in behavior, such as a loss of appetite, persistent exhaustion, or decreased interest in favorite activities.

Thankfully, many common vision problems are treatable. Things like double vision, hyperopia (farsightedness), myopia (nearsightedness), amblyopia (lazy eye), and post-concussion vision difficulties can be managed. Vision correction devices, therapeutic lenses, visual exercises, or special prism glasses may help provide the visual clarity you need. Your primary eye doctor can help and a vision therapist or low vision expert may make a significant impact on your quality of life.

How You Can Help

There are some things you can do on your own to raise awareness about good mental health:

Speak Up

Often, just talking about mental health struggles can be incredibly empowering. Ask for help from family and friends or find a local support group. Be open and honest about what you’re going through and talk with others who are going through the same thing. Remember: you’re not alone.

If you experience any type of sudden changes to your vision — even if it’s temporary — talk to your eye doctor. A delay in treatment may have more serious consequences, so speak up and don’t wait.

Get Social

Developing healthy personal relationships improves mental health. People with strong social connections are less likely to experience severe depression and may even live longer. Go out with friends, join a club, or consider volunteering.

Have an Animal

Having a pet has been shown to boost mental health and help combat feelings of loneliness. Guide dogs can be especially beneficial for people suffering from vision loss.

Use Visual Aids

If you or a loved one is experiencing mental health issues caused by vision loss, visual aids can help. Devices like magnifiers or telescopic lenses can enlarge text, images, and objects, so you can see them more clearly and in greater detail.

Kids can benefit from vision correction like glasses, contacts, or specialized lenses for more severe cases of refractive errors. Vision therapy may be an option, too. It is a customized program of exercises that can improve and strengthen visual functions.

Always talk to your eye doctor about any concerns, questions, or struggles. 

Thanks to programs like Mental Health Awareness Month, there is less of a stigma around mental health than just a few decades ago. Advancements in medical technologies and scientific research have led to innovative solutions for better vision care.

During this Mental Health Awareness Month, share your share your struggles, stories, and successes with others. Use the hashtag #Mind4Body and give your loved ones hope for a healthy and high quality of life.