Stereogram: Find the unattached ring that is not a circle

Stereogram: Unattached Ring
Courtesy: Sylvain Roques
Can you find the unattached ring that is not a circle? Click the thumbnail to try this stereogram, then use the back button in your browser to return to this page (see Caution below).

View a 3-D stereogram image by allowing your eyes to cross or drift while maintaining focus directly between the two images, until you see four images that merge into an unfocused third image in the middle. While maintaining your focus on the middle image, continue to relax your eyes until you can see it clearly.

The Unattached Ring stereogram is a more difficult one. If you are new to stereograms, try this cat card first. You can enlarge it by clicking the image at the destination site. This is exactly like the cat card my COVD doctor gave me to begin with. It took several weeks of effort before I could put the cat together in the middle. If you are have difficulty with this, it is especially important follow the Caution below.

Caution: My COVD Developmental Optometrist prescribed similar vision exercises for me. However, vision therapy is not a one-size-fits-all. Several COVD Developmental Optometrists have told me that doing the wrong exercises for your specific needs, or doing them incorrectly, can be harmful. If you have strabismus, you should ask a physician trained in Developmental Optometry (which includes Vision Therapy) which types of eye exercises are safe or beneficial for you before attempting this exercise. Click the COVD link or the Find a vision therapy dr. link in the sidebar to locate a Developmental Optometrist in your area.

Video games improve vision in adults with amblyopia

lan partyVideo games can improve vision in adults with amblyopia by 30% according to a Sept., 2010, news release from the University of California, Berkley.

Research subjects age 20-60 played video games for two hours at a time, for a total of 40 hours over one month. Experiments included one group that played action games without patching, and another group that patched one eye while playing non-action games.

According to this report, it can take three times as long (120 hours) for children with lazy eye using occlusion therapy (patching) to see improvement. Some showed improvement in less than 40 hours with video game therapy.

The internet has been abuzz for several years about the potential for video games to improve visual acuity. In September, 2007, we posted a story about Nintendo DS Flash Focus, designed specifically to improve hand-eye coordination and peripheral vision.

This study provides new hope for adults with amblyopia. Researchers caution that this research is in the early stages, and encourage patients to work closely with their eye doctors to determine the therapy that is right for them.

See Video games may help treat lazy eye for more from WebMD.

Photo courtesy Jeroen Thoolen

New fun video game offers vision training in minutes a day!

Screenshots of gameFlash Focus: Vision Training in Minutes a Day is a new video game for Nintendo DS. It’s designed to improve hand-eye coordination, focus, and peripheral vision through a series of fun games. Flash Focuswas developed in Japan and is distributed there as well as in Europe, the UK, and Australia as “Sight Training: Enjoy Exercising and Relaxing Your Eyes.”

Created under the supervision of Dr Hisao Ishigaki, a leader in the field of visual training for athletes, Flash Focusmodels vision training programs used by top athletes. It includes a lot of sports related activities like hitting baseballs and running with a football. There are also games like ‘Box Track,’ in which a dot is placed under one of three boxes, with the user having to track where it has moved to. Flash Focus customized training

Users complete daily training activities to challenge Hand-Eye Coordination, Peripheral Vision, Dynamic Visual Acuity, Momentary Vision and Eye Movement, then track their results with a calendar and easy-to-understand charts.

The exceptional thing about this game is that the software checks each individual user’s visual strength and offers a customized training program based on their score. It works like this:

Flash focus ability chartWhen users first begin, their visual strength in the above five aspects of vision, termed ‘Focus Ability’ in this software, will be checked through a series of exercises and from these results an overall in-game ‘Eye Age score’ is given. When the in-game ‘Eye Age score’ has been calculated, a regular training program is proposed with the aim of creating an overall balance of ‘Focus Ability.’

Recognizing the importance of relaxing the eyes, the game also includes an excellent Eye Relaxation program.

The Touch Generations website offers a thorough explanation of Sight Training, and the Five Aspects of Focus Ability and the Eye Age Check. There is also an excellent Explanatory Video of the game, as well as a video on Relaxing the Eyes, an Interview with Dr Ishigaki, and Screenshots of the game.

Watch trailer on You Tube.

Sight Training as reviewed in The Sun UK newspaper.

Review of Sight Training from Nintendic.

Stereoscopes, 3-d stereo binocular vision, and Vision Therapy

3-d leafEver since Charles Wheatstone invented the Stereoscope using mirrors in the 1830’s, people have been fascinated with 3-dimentional stereoscopic vision and depth perception.

The New Yorker published a very interesting article called Stereo Sue about 10 months ago. You’ll want to read the entire abstract (linked above), but here is a synopsis: According to the abstract, Sue was born cross-eyed, and had surgeries that failed to correct her lack of stereo or binocular vision. The story continues that 25 years later, in 2002 when Sue was in her late 40’s, she began vision therapy in spite of being told by doctors that vision therapy would not help. According to The New Yorker, her ability to see with 3-dimentional vision “was immediate and dramatic.” The abstract indicates that “without early binocular experiences” the mechanisms that allow binocular vision are probably not available to be “reactivated later.”

stereoscopeIf you’re interested in building your own stereoscope, I found an interesting article that explains more about stereoscopes, and how to build several different types of stereoscopes. See:
Let’s Build a Stereoscope

Want to find a doctor who provides Vision Therapy to help restore binocular stereoscopic vision? Click the Find vision thereapy dr. link here or in the right toolbar under “Vision-Related Organizations.”

Photo Credit: “A closeup of a leaf” by Stefan Vasilev; Stereoscope photo by Joaquim Alves Gaspar is published under a Creative Commons License at Wikipedia.

Strabismus survey: How does strabismus affect you?

graphs, mouse, and pencil[See photo credit at end of article]
This survey ran from 8/30/2006 to 9/30/2006.

Thanks to everyone who completed this survey. If you missed this one, we plan to do another survey soon. The survey simply stated, “If you have strabismus, please take our Strabismus Survey.” Here are the questions we asked:

  1. Do you have difficulty recognizing people in a crowd?
  2. Do you have problems recognizing faces even if there is no crowd?
  3. Does your strabismus make you more drowsy or more hyperactive?
  4. Do you have a tendency to be organized or disorganized?
  5. Do things that are unbalanced bother you?
  6. I would like to suggest the following question for future surveys:
  7. How would you rate this website (Eyes Apart: Living with stabismus)?

Continue reading to see the responses. Continue reading Strabismus survey: How does strabismus affect you?