Tag: midwest low vision

Glasses for Stroke or Brain Injury (Updated 2026)

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Losing half your vision after a stroke or brain injury is more than just a diagnosis on paper. It can make everyday activities more difficult, like navigating a crowded store, noticing a person approaching from the side, or even just walking through a doorway. For people struggling with side vision loss, finding ways to adapt is incredibly important, and one option that can help is Side Vision Awareness Glasses. In this article, we discuss what these specialized lenses are and answer some frequently asked questions. 

What Are Side Vision Awareness Glasses?

Side Vision Awareness Glasses®, or SVAGs, were developed by Dr. Errol Rummel of Jackson, NJ, after years of treating people with stroke-related, or brain injury-related hemianopsia. Hemianopsia is the clinical term for the loss of half the width of your field of vision; it is one of the most common side effects of a stroke or traumatic brain injury. 

Side Vision Awareness Glasses are specialized low vision glasses that use built-in prism technology to expand the field of vision for patients with peripheral vision loss. 

There are multiple benefits of SVAGs, including:

  1. A wide viewing area, allowing better field awareness. And because SVAGs have a vertical edge, a patient just needs to move their eyes a couple of millimeters to get into the SVAG area of the lens. 
  2. A discreet appearance because the front of the lens is smooth, making the area with prism barely noticeable.
  3. A higher index of refraction. SVAGs are thinner, lighter, and more comfortable than other types of hemianopsia glasses.

The goal is not to make the blind area disappear; it is to improve awareness, navigation, safety, and confidence using the vision that remains.

How the London Bridge would look to someone with a hemianopsia
How the London Bridge would look to someone with a hemianopsia
Side Vision Awareness Glasses in Bloomington, IN | Midwest Low Vision
Notice the prism on the right lens of this pair of SVAG.

Who is a Candidate for SVAGs?

A potential candidate commonly has:

  • Stable right- or left-sided visual-field loss.
  • Enough intact vision to recognize information redirected by the prism.
  • Difficulty detecting people, doorways, carts, furniture, curbs, or other objects on the affected side.
  • Sufficient attention and cognitive ability to learn how the shifted image should be interpreted.
  • A realistic functional goal and willingness to practice.

Patients with significant visual neglect, uncontrolled diplopia, severe cognitive impairment, or difficulty understanding the prism image may have more trouble using the system. Hemianopia and visual neglect are not the same condition, although they can occur together. A careful neurological and functional assessment is essential.

How are SVAGs prescribed?

SVAGs are not an off-the-shelf pair of glasses. The evaluation should include:

  • Confirmation and characterization of the visual-field defect.
  • Assessment of visual acuity, ocular alignment, contrast, cognition, and visual attention.
  • Discussion of specific functional problems.
  • Demonstration of different prism configurations.
  • Observation of the patient using the system during realistic tasks.
  • Custom measurements and lens fabrication.
  • Training and follow-up after dispensing.

General eye care practitioners do not have to prescribe the system themselves. Their most important role may be recognizing the functional problem and referring the patient to a low-vision or neuro-optometric practitioner experienced with hemianopia rehabilitation.

What Do Side Vision Awareness Glasses Look Like?

From a distance, SVAGs can look similar to conventional prescription glasses. Up close, another person may notice a vertical line where the standard lens area meets the prism portion.

These lenses generally appear less conspicuous than temporary Fresnel prisms. However, cosmetics should be a secondary consideration. The more important questions are whether the patient can interpret the shifted image, use it without excessive confusion, and gain meaningful functional awareness.

New Design: Exclusive to Midwest Low Vision

Typically, these glasses have a prism on the back of the lens so that someone can use it when they need to by shifting their eyes to the left or the right. However, Dr. Rummel generously gifted Dr. Jarrod Long a set of his brand new full-field side vision awareness glasses. They work similarly to the standard SVAG but the entire lens is specially designed to shift the missing part of your vision into view. This expands a person’s awareness of objects in their path and enhances peripheral vision. Currently, Midwest Low Vision is one of the only practices in the Midwest with the full field SVAG.

New Full-Field SVAG design

This picture shows a pair of the new full-field glasses. Notice how there is no extra attachment on either lens- instead, the entire lens is designed to adjust the field of view. You can see how the lens shifts the image of the eye chart to the left. This specific type of lens is ideal for someone missing their right visual field. The new design allows someone to see more of their side vision without compromising the view right in front of them.

Frequently Asked Questions

How do SVAGs differ from Peli peripheral prism glasses? 

The two systems redirect information from the blind side, but they use different optical arrangements. SVAGs use a vertically oriented prism area beside the central viewing area, requiring the wearer to deliberately look briefly into the side prism area. They usually have a faint vertical dividing line between the conventional lens and prism area, and are intended to provide a relatively large, clear area through which the shifted scene can be inspected.

In contrast, Peli peripheral prisms use prism segments above and below the central line of sight to provide peripheral awareness while central vision remains unobstructed. They may begin with visible Fresnel press-on segments and later be made as permanent prism segments, and they are intended primarily to alert the wearer to objects in the blind-side peripheral field.

SVAG developers report better optical clarity and contrast than Fresnel press-on prisms. That comparison is optically plausible because Fresnel material introduces blur and contrast loss, but it should not be presented as proof that SVAGs are superior to permanent Peli lenses. The Peli design has substantially more peer-reviewed clinical research supporting its use as a mobility aid. Community studies found that some patients continued using Peli prisms because they were helpful for obstacle avoidance, although not everyone adapted or continued wearing them.

Therefore, the best system is not determined by appearance or prism power alone. It depends on the patient’s field loss, visual processing, cognition, mobility needs, ability to learn the system, and response during an in-office trial.

They require training and practice. Initially, the shifted image may feel unfamiliar, displaced, or confusing. The wearer must learn:

  1. To recognize an image appearing in the prism area.
  2. To use it as an alert rather than assuming the object is in the apparent location.
  3. To turn the eyes and head toward the object.
  4. To confirm its actual position through the clear portion of the lens.
  5. To incorporate the technique into walking, shopping, social situations, and other daily activities.

A properly prescribed device should be paired with structured instruction—not simply dispensed with the expectation that the patient will “figure it out.”

Can SVAGs be worn all day?

Some people may wear them for extended periods, while others use them primarily for mobility or visually complex environments.

The right wearing schedule depends on the design and the patient’s goals. Prism field-expansion systems may be less helpful for sustained reading, computer work, or other detailed central tasks. Some patients benefit from a separate pair of glasses for walking and daily mobility.

Can SVAGs help someone qualify to drive?

Possibly in isolated cases, but these glasses should never be described as a route to “passing the vision test.”

Driver-licensing requirements vary by jurisdiction, and many people with homonymous hemianopia do not meet the required horizontal visual field. A prism may increase awareness without restoring the underlying field or automatically satisfying a licensing standard.

Oblique Peli prisms can provide approximately 30 degrees of expansion in parts of the visual field and have been studied in driving-related detection tasks. Research found that peripheral prisms, particularly when combined with perceptual-motor training, improved blind-side hazard detection in a driving simulator. That does not prove that every wearer is safe to drive or legally qualified. Peripheral prisms and driving-simulator detection

Any discussion of returning to driving should include:

  • Current state licensing requirements.
  • Formal binocular visual-field testing.
  • Assessment of visual attention, processing speed, cognition, and motor function.
  • Training in prism use when applicable.
  • Evaluation by a certified driver rehabilitation specialist.
  • Behind-the-wheel assessment and approval by the licensing authority when required.

In Indiana, the BMV may require documentation from an optometrist or ophthalmologist and may apply restrictions such as corrective lenses, additional mirrors, or daylight-only driving. The BMV—not the prescribing doctor or the glasses—makes the licensing determination.

Conclusion

Dr. Long is specially trained to prescribe and dispense the right pair of glasses for you or your loved ones. If this sounds like something that would improve your quality of life, please call for more information!

Low vision doctor, Dr. Long, in front of eye chart discussing what is a low vision doctor

The Top 5 Questions to Ask Your Low Vision Doctor

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The Top 5 Questions to Ask Your Low Vision Doctor

Navigating life with low vision can be a challenge. The condition refers to reduced visual acuity or field of vision that can’t be corrected with traditional glasses, contact lenses, or surgery. People with low vision may struggle with everyday tasks, such as reading, driving, watching TV, or shopping, resulting in a decreased quality of life. Fortunately, with the help of a low vision specialist near you, it may be possible to regain some independence and get back to the activities you enjoy. Here are the top five questions you should ask your low vision doctor to make the most of your consultation and continued care.

What is a Low Vision Doctor?

A low vision doctor is typically an optometrist or ophthalmologist who has specialized training to help patients with visual impairments beyond what traditional glasses or contact lenses can correct. In my case, I studied in New York City under Dr. Bruce Rosenthal and Dr. Eleanor Faye at Lighthouse Guild, the leading organization dedicated to addressing and preventing vision loss. Additionally, I did a VA residency, and in 2006, a mentorship to learn how to do advanced low vision care. Our practice, Midwest Low Vision, has been helping patients in the Bloomington, Clarksville, and Evansville, Indiana, and surrounding areas since 2006.

Low vision doctors are trained in the optics, physics, and use of high-powered lenses and lens systems and have in-depth understanding of principles of magnification, field of view, depth, and focus. Such specialists carry knowledge of the multitude of low vision glasses, magnifiers, electronic, and non-optical aids available.

How Can a Low Vision Doctor Help?

A low vision doctor helps by understanding your unique vision challenges and recommending specialized solutions to address them. We focus on your functional vision—the specific tasks you can, or cannot, see to do. While some optometrists may prescribe tools like handheld magnifiers, stand magnifiers with lights, or even very strong glasses, a low vision doctor like myself, practicing advanced low vision care, will prescribe specialized eyewear for whatever activity is on your “wish list.” Some devices commonly include:

  • Telescopic glasses: Telescopic glasses are special lenses designed to magnify distant and near objects, used for activities like watching TV or recognizing faces, and even reading or computer.
  • Microscopic glasses: These lenses assist with close-up tasks, such as reading, doing hand work, or performing other fine-detail work.
  • Prismatic lenses: Prismatic glasses shift images to improve focus and alignment; these are often used for double vision or eye coordination issues.
  • E-scoop glasses: This special eyewear features combined optics that magnify and enhance contrast and reduce glare for individuals with conditions like macular degeneration. E-scoop glasses can even help with driving, when appropriate.
  • Magnifiers: These are handheld or stand-up devices that enlarge text or objects. Different from ordinary magnifying glasses, these devices contain LED lights and other advanced features.
  • Non-optical visual, tactile, auditory, and other aids: special lamps, lights, talking devices, and more can assist with daily functional tasks.

What Are the Top Conditions Treated by a Low Vision Doctor?

This is kind of a “trick question” because, while your low vision doctor has a deep understanding of the causes of low vision, our primary focus is on how we can improve your sight. That said, low vision doctors see patients with a wide variety of conditions, such as:

  • Wet and dry macular degeneration: These affect central vision and are at the top of the list of most common conditions. Since 1997, I have seen thousands of patients with macular degeneration.
  • Albinism and ocular albinism: These are genetic conditions causing reduced vision and light sensitivity.
  • Stroke: A stroke can impair visual processing and cause partial vision loss.
  • Traumatic brain injury (TBI): TBI may result in visual field loss or difficulty processing images.
  • Optic neuropathy: Damage to the optic nerve can cause vision loss.
  • Double vision: This is a condition where two images of a single object appear.
  • Glaucoma: Glaucoma is a progressive eye disease that damages the optic nerve. Glaucoma that stems from an eye muscle or cranial nerve problem may benefit from low vision treatment.
  • Stargardt disease: This is an inherited retinal disease causing central vision loss similar to macular degeneration.
  • Diabetic retinopathy: Diabetic retinopathy consists of diabetes-related damage to retinal blood vessels.
  • Eye injury: Trauma to the eye can reduce vision.
  • Retinitis: Inflammation of the retina can lead to vision loss.
  • Inoperable cataract: While most cataracts can be surgically corrected nowadays, inoperable cases may benefit from low vision care.
  • Fuch’s corneal dystrophy: This is a rare condition which causes corneal clouding.
  • Macular holes: A macular hole is a small break in the macula which causes blurry or distorted vision.
  • Histoplasmosis: This is a fungal infection affecting the retina.

When Should You See a Low Vision Doctor?

When you start having difficulties with everyday activities like reading, watching TV, playing cards, seeing digital devices like your phone, and if you have already consulted with your regular optometrist and exhausted all corrective glasses or contact lens treatment, that is the time to see a low vision doctor. Your optometrist or ophthalmologist may provide a referral. Or, you may need to take action on your own and give us a call. The earlier you come in, the better chance for simpler, more effective solutions.

What Should You Expect From a Low Vision Doctor Consultation?

First, you want to make sure to schedule 1-2 hours of your time. This is not a regular eye examination. A low vision evaluation focuses on helping you regain the ability to do the tasks you are no longer able to do. Together we create a “wish list,” which may include activities like driving, reading, seeing faces, reading music, seeing digital devices, watching theater, or viewing sporting events. After determining functional needs, we then start trying out some devices, allowing you a chance to see through special glasses or use other aids before we prescribe. After identifying the best visual ads for your needs, we place the order. After the devices are received, usually around 3-4 weeks, we meet again to properly fit and train you on the devices. Most importantly, the care is ongoing. Should your vision change, should something feel “off” with your visual aids, we are here for you and will follow up to make sure everything possible is being done.

Bonus: How Do I Find a Low Vision Doctor?

If you’d like to consult with a low vision specialist near you, you can visit “Find a Doctor” on the International Academy of Low Vision Specialists (IALVS) website. Or, if you are located in the Midwest near Bloomington, Evansville, or Clarksville, Indiana, give us a call at 877-577-2040. We’re ready to help you get back to doing the activities you love.

Age, weather, level of vision, and other things to be mindful of…

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It’s -9 degrees Fahrenheit (never mind the wind chill) and my sweet 107 year old patient had no problem beating me to the office this morning for low vision care

Often times when I speak with with family and caregivers of my potential patients I hear things like “but mom is 83 years old”. Or, “dad won’t want to make a trip that far to see you”. They often say “her vision is really, really poor,” or “he can’t spend that money,” or “[fill in the box].”

One of my roles as a low vision specialist is to see through all of that. I approach each case without bias or discrimination to get down to what really matters. My goal is to help my patients, or potential patients, understand that there is hope and possibility. No matter the circumstances, there may be a way that they can see to do what they want to be able to do!

I have patients of all ages from around the world. Some have levels of vision from 20/20 while others are well-beyond the “big E” on the eye chart. Simple magnifiers and special, custom tints can make big differences. So can more complex solutions like telescopic glasses with focusing caps or video/electronic devices.

Simply make the call to our office. I will talk with you directly to get specific, helpful information and see if it makes sense to schedule an appointment. It almost always does! We will go over important details such as costs, location, and what to bring to the appointment.

I look forward to hearing from you.

Thank you, Dr. Long.

National Low Vision Meeting Summary

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As one of the earliest members of the IALVS, Dr. Long attended his 7th annual meeting recently. Click here for a summary of speakers, topics, vendors, and other happenings at this exciting meeting!

What is different about a low vision exam?

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In this video Dr. Long explains what you can expect during a low vision evaluation and what makes it different from other eye health examinations.  As you’ll see, the key difference is eye health versus functional vision.

During the low vision exam Dr. Long will help you formulate your “wish list” so there are specific goals to be addressed during the approximately hour-long appointment.

Take a look at this short video to learn more about what to expect and just why you might need more than one eye doctor!

A low vision patient reading with special glasses during the low vision exam

 

Meet Mary!

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Mary has “rod achromatopsia.”  This is a condition you are born with characterized by a partial or total absence of color vision.  It also involves other problems with vision, like increased sensitivity to light and glare, involuntary back-and-forth eye movements (nystagmus), and significantly reduced sharpness of vision.

Mary at work with her glasses and low vision aids.

Mary was sent to Dr. Long through Indiana Vocational Rehabilitation Services to meet some vision-related goals.  After a thorough low vision evaluation, Dr. Long prescribed several low vision aids. Mary uses bioptic telescopic glasses, prismatic reading glasses, a “Ruby” electronic magnifier, and specially-tinted regular glasses and sunglasses. All of these devices help Mary work, read, and participate in her favorite activities. 

Mary had this to say about her experience with Midwest Low Vision:  

“My association with the low vision department at Long Family Eye Care has always been a positive and helpful experience.  My most recent visits introduced me to visual aids and glasses that enable me to function at the highest level possible with my visual impairment.  The extra time Dr. Jarrod Long and Casey spent with me was informative, kind, and life-changing.  Without question, the most current information and low vision assistance available.”

Thanks Mary! 

If you or a loved one could benefit from our services, like Mary, please contact us today for a free phone consultation.

New Office Location for Midwest Low Vision in New Albany area!

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Thank you to Dr. Braaten for 12 good years of allowing Dr. Long to care for low vision patients in your New Albany office!

Now, since Dr. Braaten recently closed his practice, Midwest Low Vision has had to find a new home.  We are using the local vocational rehabilitation office at 1452 Vaxter Avenue in Clarksville, Indiana.  Click here for a link to a map of the location.  For those of you who have been waiting, we’ll see you soon!

Finally, we want to send out a special “thank you” to the staff and counselors at the rehabilitation services office for allowing us to use their office for low vision evaluations for anyone in need of help.

What is Low Vision?

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In this video I define, in my own terms, what it means to have low vision. Low vision is a functional vision deficit. So, regardless of the measurement of your visual acuity (e.g. 20/60, 20/200, etc.) and any label (e.g. partially-sighted, legally blind) that has been placed on you, you have “low vision” if you cannot see to do what you would like to be able to do. Said another way, it’s vision that is insufficient to do what you want to do.

Thanks for watching !

Dr. W. Jarrod Long

Meet Jacob! Albinism and Low Vision.

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bioptics

Indiana Vocational Rehabilitation Services referred Jacob to Midwest Low Vision. Jacob is a high school senior with oculocutaneous Albinism and associated Amblyopia (more commonly known as a “lazy eye”). Oculocutaneous albinism and ocular albinism are genetic conditions causing the central retina, or macula, to underdevelop.

Like others born with albinism, Jacob adapted to his level of vision. However, Dr. Long worked with Jacob to figure out how to make visual tasks a little easier. Dr. Long prescribed a 4x magnifying Bioptic telescope for Jacob to use for distance details such as driving, seeing faces, or seeing the board at school. He proudly wears his bioptic glasses in the image to the left. In addition, Dr. Long prescribed a handheld electronic magnifier along with a dome magnifier to help him with reading and schoolwork. Jacob sits with these devices in the image below.

Jacob wearing his bioptic glasses and holding his Ruby video magnifier

Jacob plans to go to college to be a music teacher. He feels like his “new technology will help [him] through life”. Above all, he believes his devices will give him the ability to impact others in positive ways.

Since his initial appointment, Jacob has learned to use his tools in the most effective ways. Currently, Jacob is on his way to get specialized training to drive with bioptics!

Dr. Long has helped hundreds of patients with various forms of albinism to see better with specialized low vision care.

 

Welcome to our Midwest Low Vision Website!

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Welcome to the Midwest Low Vision website! Take a look around and please visit the links to our social media pages (Facebook, YouTube, LinkedIn) to learn the most updated information available about our practice, low vision services, and related eye and vision conditions.

Also, head directly to our Contact Us page to give us a call or the send an email message to Dr. Long.

We’re glad you found us and have an interest in helping yourself or someone you care for.

Sincerely,

Dr. W. Jarrod Long