Showing posts with label Amblyopia. Show all posts
Showing posts with label Amblyopia. Show all posts

Monday, November 23, 2009

Rice, Tweezers, and Dot-to-Dot Books

One easy to do fun activity that helps individuals strengthen their lazy (or amblyopic) eye is to fill in the gaps between the numbers in a preschool dot-to-dot book with grains of uncooked rice.

Directions: Put about a tablespoon of rice into a small saucer. Tape a dot-to-dot page to the table so it doesn't wiggle. Put a patch over the better eye. Using a regular pair of tweezers, pick up one grain of rice at a time and place it carefully down between the numbers in order. Continue laying down grains of rice one at a time until the entire puzzle is complete.

Why is this an effective monocular activity?
  1. Because the page is likely to be the same color as the rice, seeing where each piece of rice should be placed depends on good visual acuity
  2. It also requires good visual-motor-integration skills to manipulate the tweezers, isolate just one piece of rice and maneuver it to the paper

Saturday, November 21, 2009

Our Amblyopic Intern is Getting Better

This morning our 4th year optometry intern told me that yesterday she asked our senior doctor to refract her and guess what? After four weeks of doing vision therapy activities with our patients - she has been wearing red and green glasses to "wake up" her amblyopic eye when facilitating activities with anti-suppression targets and wearing a patch over her "good" eye when facilitating monocular activities....her best corrected visual acuity in her amblyopic eye has improved significantly. She is surprised and thrilled.

Monday, November 9, 2009

Our Intern's Emerging Binocularity

Today I asked our amblyopic intern whether she has had any more results from doing simple binocular activities in our vision therapy room. Yes, she is aware of depth in a new and not terribly comfortable sense now that she can see two strings on the Brock string. She also had a terrific headache last week and attributes that to the emerging use of her right eye. Not only is she providing clear language about the disruption that becoming binocular is making for her otherwise reliable visual world-view, she is gaining empathy for all the patients for whom she will recommend vision therapy once she is a fully licensed board-certified optometrist. I hope to convince her to blog about her journey towards binocularity.

Monday, October 26, 2009

For Teachers About Learning & Vision

Teachers should be the first line of intervention when one of their students has a learning-related vision problem since they get to see the children at work every day. When a student covers one eye or puts their head down so that only one eye points towards the text or paper, the teacher should recognize that this child needs to see an eye doctor to rule out amblyopia, or problems teaming the eyes to keep a word or other image single. When a student squints or complains of having a headache often during school - especially when asked to copy work from the board or smart-board to a piece of paper on their desk, the teacher should suggest that the student's parent make an eye appointment to make sure that the child knows how to accommodate i.e. switch their focus from near to far and back again efficiently. When a student cannot line up the digits in a math problem or appropriately space words on their paper, the teacher should first offer some practical hints but if these do not seem to help, it is time for a referral to an eye doctor to make sure that the child's eye movements and visual perceptual skills are developing on schedule. When a student makes frequent reversals when reading or writing - especially after the second grade, this may be a visual spatial delay in the skills of laterality and directionality. Finally, when a student has trouble in PE or on the playground catching or aiming balls or, in general, has under-performing gross motor skills, the root of the problem could the visual-motor-integration. While each of these symptoms can make success in school very difficult, all of them can be addressed by a few weeks or months of in-office vision therapy under the supervision of a developmental optometrist. No child should be left behind in school because of addressable learning-related vision problems.

Saturday, October 24, 2009

Hope for an amblyope

We have a new intern in our office, a fourth year optometry student who, as I am fond of saying to the therapy patients, is just a minute away from becoming an eye doctor. As I was introducing her to the various activities that we use in therapy, she disclosed that she is not binocular. In other words, she does not see in three dimensions because her eyes do not team properly together. She is also an amblyope. One eye has an acuity that is at least two lines on the Snellen Eye Chart worse the other eye. This is probably why she is not binocular - she opted to pay attention to the information coming into her brain from just one eye - actually, she did not do this on purpose, it just happened and therefore she does not experience double vision. You need two eyes to point to the same place in space AT THE SAME time in order to experience three-D vision. Since we deal with binocular dysfunctions a lot in VT (vision therapy), she and I began to talk about what her goals were for this rotation. Binocularity has been an abstract concept for her, not ever having experienced it and she hopes to understand it better. As I showed her patient histories that demonstrated how we can stimulate the emergence of binocularity in patients with similar conditions as her own, she became more and more intrigued with the possibility that she, like "Stereo Sue" Barry, could actually achieve a different visual outcome. That was last Monday. I only work on Mondays and Saturdays so when I saw her today she greeted me with the news that she is beginning to be able to do very simple binocular tasks. Later this morning, she was wearing a patch over her better eye to make the amblyopic eye work. I love when people unexpectedly gain hope for what they thought was a forever condition to change. I'll keep you posted.

Wednesday, August 5, 2009

Why don't more people know about vision therapy?

I just had a long conversation with the publisher of my Eye Can Too! Read series about why people don't know about vision therapy as a way to improve a child's reading among other things. She commented on the interest the books receive at the various home school curriculum fairs (there's one this weekend in Schaumberg, IL, by the way- my books will be at the Home School Inc booth). She said that when the sign offers "help for struggling readers," parents are not as attracted as when it says "vision therapy workbooks." By the way, Lottie, your eyeball painting attracts A LOT of interest! Here's some of what I said.

  1. Education generally does not consider that other than for low vision issues, vision could be the root of a child's difficulty in learning to read. It isn't profiled in the graduate school reading courses. (I would love to offer such a course at the graduate school level here in St. Louis- I even have a course proposal written!) Vision therapy and binocular vision evaluations are not typically included in an IEP (of course not because then the budget-strapped public school districts might have to pay for the services). The school nurse's vision screening doesn't usually deal with anything other than acuity and obvious ocular health issues. So when a child has received all the reading interventions at school, gets read to at home regularly, is otherwise intelligent, articulate, and healthy, but still cannot read on grade level, he gets labeled learning disabled in reading, given a diagnosis of dyslexia, or placed in still more sedentary tutorials. If these children were to be sent to a developmental optometrist for a binocular vision evaluation and, if indicated, a developmental evaluation of their visual-perceptual skills, and again if indicated, enrolled in a program of in-office vision therapy, many of them would gain the skills they need within 12 to 48 weeks.
  2. Home schooling parents frequently choose to home school because their struggling readers are not well served in a traditional school setting. Then, in their frustrated search for interventions, they end up spending too much money without achieving the result they hoped for. Since vision therapy providers are hard to find, are usually very expensive, and their services tend not to be covered by health or vision insurance, these parents suspect that the prescribing doctor may just be another person looking to separate them from their money without bringing any real change.
  3. Optometry and ophthalmology are not always friends. Optometrists are the eye doctors who generally provide vision therapy services as well as binocular vision evaluations. Ophthalmologists are the medical doctors who specialize in the treatment of eyes. They also do eye surgeries. While there is more than 40 years of documented optometric research to prove that vision therapy works, there is limited awareness about it partly because of the disconnect between optometry and ophthalmology. Since 2008, though, both professions agree that in-office vision therapy is effective to treat convergence insufficiencies. This is real progress. Ophthalmology also agrees that vision therapy is helpful in the treatment of amblyopia.
So much for the big issues that may be slowing down the sale of my "vision therapy workbooks" as the publisher nicknamed them. Really, they are graded academic activities for home-school students in language arts and math that also help parents identify, begin to address, and certainly improve a students efficiency, comprehension, fluency, and speed when reading. In no way do these books attempt to diagnose or prescribe anything for anyone. Rather, they connect the dots I hold because of my background in education, home-education, and as an optometric vision therapist.

One reason that I started blogging about these issues (other than as a marketing strategy for the books, of course) is that I know that a lot of children who don't like to read and who are not "living up to their potential in school" change after their unaddressed learning-related visual challenges get fixed. I see it every day when I work in the vision therapy context. I'd love to be considered a resource for parents and teachers around the issues of vision and learning so please, post your questions as blog comments or on the wall of the FaceBook page. Or email me at asklesley@teamlesley.com. I'll answer what I know- probably I'll suggest you schedule an appointment with a developmental optometrist too.

For optometrists, the Eye Can Too! Read series of e-books is a great resource for your home-schooling families. The books work as stand-alone solutions or as resources for home therapy in connection with a program of in-office vision therapy for saccadic deficits, laterality & directionality delays, and visual perceptual delays. Let me know if you are interested in receiving preview copies or in having them available on CD for sale at your office.

Monday, February 2, 2009

What if your 3-D glasses didn't work?

Did you put on a pair of 3-D glasses to watch the special Super Bowl commercials yesterday? At least 4% of you probably did not notice any difference in the picture after you put on the glasses. This is the percentage of the American population that has a strabismus or an eye-turn. Even more people have difficulty teaming their eyes together whose conditions may involve a convergence insufficiency, convergency excess, or other problem that involves binocular function and would also have found the commercials less impressive than they had been led to believe. Other people probably were able to appreciate the added depth and detail in the commercials with the 3-D glasses at first, but then their eyes began to hurt or the special effects seemed to fade away. Still others, who have amblyopia, commonly called a lazy eye, tend to suppress the information gathered by the weaker eye, so they would also have had difficulty using the 3-D glasses.

3-D glasses work by providing the right eye with different visual information than the left eye so that a more complex image will be perceived when the two pictures are combined in the retina. ( See http://www.3dglassesonline.com/how-do-3d-glasses-work/ for a discussion of how 3-D glasses work.) For them to work requires that the individual has good binocular vision. Strabismus, eye teaming disorders, and amblyopia all correlate with reduced or absent binocularity. People who have these conditions usually have difficulty with depth perception. Some of these conditions also impair the individual's ability to read efficiently because, with a convergence insufficiency, for instance, the words may seem to be unstable on the page. They may also get headaches or report seeing double when they read.

Fortunately, with appropriate diagosis and vision therapy, these conditions can be helped. New research demonstrates that convergence insufficiencies can be addressed with a program of in-office vision therapy. Children who have been diagnosed with other binocular disfunctions have the best prognoses but even adults can be assisted to gain ground as has been demonstrated by the experience of Sue Barry, dubbed "Stereo Sue". (See ttp://www.newyorker.com/archive/2006/06/19/060619fa_fact_sacks for her story.)

What is my point? If you or someone at your Super Bowl party was unimpressed by the 3-D glasses because they didn't seem to change anything about the picture, or if anyone found wearing the glasses uncomfortable or intolerable, it probably means that they need to schedule a comprehensive eye exam with a developmental optometrist who specializes in binocular vision and who also is a vision therapy provider. Then, if there is a diagnosis that can be helped by vision therapy, know that the benefit of seeing in stereo is worth the investment of time, money, frustration, and effort.