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GLT Good Lite Vergence Facility Prism 6D/2D P14350877GLT-477702 https://cdnimages.opentip.com/full/GLT/GLT-477702-P.jpg Good Lite Vergence Facility Prism 6D/2D Vergence Facility 6D BO & 2D BI testing has been shown to be one of the most important methods of detecting patients with binocular vision disorders and symptoms. Diagnosis of non-strabismus binocular vision abnormalities can be improved through the use of vergence facility testing at near.Testing Procedure:The test is performed at 40 cm as the patient views a vertical 20/30 target or similar. Six diopter base out (BO)and two diopter base in (BI) prism are alternately placed before one eye; the patient is asked to report when the target becomes single and clear. This prism change is repeated for one minute and the clinician records the number of cycles performed during testing. The presence of suppression is indicated by a perceived lateral movement of a single target moving left or right of center, or no observed eye movement.For testing at near, the recommended failure criteria are 15 cycles per minute which are easily recalled (sum of BI and BO demands). Recent research has shown this criterion is valid for pediatric, adult, and presbyopic populations.Prisms Tech Bulletin 14350877 1.0000lbs 0.00 0.00 0.00
Good-Lite
32.34 2025-07-12 In Stock
customer review - by , March 3, 2023
5/ 5stars
This is our third anchor from SandShark (we have two SandShark Jaws Anchors) we absolutely love the addition of the Supersport to our ever growing collections of SandShark products. It is perfect for shallow water anchoring and we do a lot of that here in Florida. We use it for our two Seadoo GTX's tethering and anchoring at the sandbars is a breeze! Quality aluminum (no rust) build, collapseable and light weight stows away easily. We highly recommend this anchor and any other SandShark product. Excellent company that stands behind their products. Get yourself a SandShark!(I will update with the picture soon!)
customer review - by , December 12, 2022
5/ 5stars
I've been using the SuperSport for 6 months now, and can honestly say this was well worth the investment. Fits in the hull of my 2017 Seadoo GTI Limited, and is easily accessible and lightweight. Super easy and quick to mount and hook the ski up to, I even got my friends to purchase one for their small flats-boat and they love it, you need this!
customer review - by , December 12, 2022
5/ 5stars
Light weight, comes with a nice bag to carry.
customer review - by , December 12, 2022
5/ 5stars
Beyond easy to use !!! Held me ski in strong waters.Love it !!
customer review - by , September 9, 2022
5/ 5stars
There’s a video on the sand shark website that shows the handles locking into place (open/close) position. The unit I received works fine but the handles do not lock as shown in the video. Over all I’m happy with the purchase although I believe it to be a bit pricey but in this world we live in today everything is overpriced unfortunately.
customer review - by , September 9, 2022
5/ 5stars
Works great for shallow water anchoring. Much better than dealing with a bottom anchor and all that line. Love the short bungee line that you can get with it too
customer review - by , September 9, 2022
5/ 5stars
While we had an issue with our anchor not un-locking properly, the company is agreeing to replace the anchor out of warranty for us (we've had it for just under 2 years). I am hoping to receive our replacement anchor soon and will update this review with details relating to that process. I do really appreciate prompt customer service and was emailed back right away, which was very nice!
customer review - by , September 9, 2022
5/ 5stars
This company has the highest level of customer service that I’ve experienced in a very long time. I had an issue-not with the product but with the delivery and they jumped right in to get it sorted out. This world needs more of this-people helping people. A big thank you again to the the team at Sandshark!
customer review - by , August 8, 2022
5/ 5stars
This product is worth the money and makes anchoring so easy.
customer review - by , August 8, 2022
5/ 5stars
Thing works great love it!!
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Good-Lite Vergence Prism 6D BO & 2D BI w/Handle

stars Rating 5 | 75 reviews
Brand Good-Lite
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SKU: GLT-477702-P
Price: $32.34
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Product Description

Vergence Facility 6D BO & 2D BI testing has been shown to be one of the most important methods of detecting patients with binocular vision disorders and symptoms. Diagnosis of non-strabismus binocular vision abnormalities can be improved through the use of vergence facility testing at near.

Testing Procedure:

The test is performed at 40 cm as the patient views a vertical 20/30 target or similar. Six diopter base out (BO)and two diopter base in (BI) prism are alternately placed before one eye; the patient is asked to report when the target becomes single and clear. This prism change is repeated for one minute and the clinician records the number of cycles performed during testing. The presence of suppression is indicated by a perceived lateral movement of a single target moving left or right of center, or no observed eye movement.

For testing at near, the recommended failure criteria are 15 cycles per minute which are easily recalled (sum of BI and BO demands). Recent research has shown this criterion is valid for pediatric, adult, and presbyopic populations.
Prisms Tech Bulletin

warning tips WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
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Customer Reviews
5 out of 5
see all 75 reviews
5 stars
72
4 stars
3
3 stars
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By M. Brugh
Date: March 06, 2023
This is our third anchor from SandShark (we have two SandShark Jaws Anchors) we absolutely love the addition of the Supersport to our ever growing collections of SandShark products. It is perfect for shallow water anchoring and we do a lot of that here in Florida. We use it for our two Seadoo GTX's tethering and anchoring at the sandbars is a breeze! Quality aluminum (no rust) build, collapseable and light weight stows away easily. We highly recommend this anchor and any other SandShark product. Excellent company that stands behind their products. Get yourself a SandShark!(I will update with the picture soon!)
Rating: 5 stars [5 of 5 Stars!]
By Matthew
Date: December 15, 2022
I've been using the SuperSport for 6 months now, and can honestly say this was well worth the investment. Fits in the hull of my 2017 Seadoo GTI Limited, and is easily accessible and lightweight. Super easy and quick to mount and hook the ski up to, I even got my friends to purchase one for their small flats-boat and they love it, you need this!
Rating: 5 stars [5 of 5 Stars!]
By Gil
Date: December 15, 2022
Light weight, comes with a nice bag to carry.
Rating: 5 stars [5 of 5 Stars!]
By Dawn
Date: December 15, 2022
Beyond easy to use !!! Held me ski in strong waters.Love it !!
Rating: 5 stars [5 of 5 Stars!]
By Francisco Giron
Date: September 19, 2022
There’s a video on the sand shark website that shows the handles locking into place (open/close) position. The unit I received works fine but the handles do not lock as shown in the video. Over all I’m happy with the purchase although I believe it to be a bit pricey but in this world we live in today everything is overpriced unfortunately.
Rating: 5 stars [5 of 5 Stars!]
By Eric VanDam
Date: September 13, 2022
Works great for shallow water anchoring. Much better than dealing with a bottom anchor and all that line. Love the short bungee line that you can get with it too
Rating: 5 stars [5 of 5 Stars!]
Items 1 - 6 of 75 reviews
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