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CASE STUDIES, TIPS & RESOURCES – MARCH 2016 EDITION
 
 
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UP TO THE CHALLENGE     CharliRae
 
LOCKING IN CYLINDER WITH THE CUSTOM STABLE ELITE FRONT TORIC LOCK
 
CharliRae Edmunds
Consultant
Valley Contax
 
March 1, 2016

Rotation, which is a common issue with fitting custom corneal GP lenses and soft toric lenses, and previously scleral lenses, is usually remedied with prism ballasting which adds thickness and weight to the lens. The added material can make fitting the lens more difficult and does not always promote a healthy lens fit. The beauty of the Custom Stable Elite lens is the stability from rotation without the need for prism ballasting. Once an optimal fit is achieved with the Custom Stable Elite you now have the ability to incorporate a sphere/cylindrical over refraction with the confidence of knowing rotation will not hinder the clarity the patient sees in the over refraction.

Factoring in your over refraction including cylinder is a simple process and can be finalized either before the order is placed or with the help of a consultant. Here are the key steps you will need to take when factoring in the cylinder and axis either on your own or with a consultant.

1.An optimally fitting Custom Stable Elite on the patient's eye
Following your Custom Stable Elite Fitting Guide, make any alterations to the Custom Stable needed to achieve a healthy fitting lens. Sometimes making changes to the fit can alter the amount of rotation in the lens, so I recommend making any dramatic fit changes before incorporating cylinder.
2.Take your spherical/cylindrical over refraction (Example: -2.25 -1.50 x 90)
3.Notate the location of the Flat Meridian Laser Marks see Figure 1
These are the Laser ‘0's that notate the flat meridian of the Scleral Landing Zone. Measure any amount of rotation from 0/180 (horizontal) on the eye. (Example: 30 degrees right rotation) see Figure 2
4.Use the LARS method (Left Rotation= Add, Right Rotation=Subtract) to figure your new axis based on the rotation of the flat meridian laser marks - Example: Original OR axis is 90, you have 30 degrees to the right rotation, so subtract 30 from 90 to get your new axis equals 60.
5.Factor in your new axis onto your final power
On a plano trial lens your final lens power will be -2.25 -1.50 x 60.

Your custom lens will come with some additional lasering to ensure that the rotation and axis were factored in correctly. These are called Rotation Double Check marks and if your rotation is consistent they will always orient at 90/270 on the eye. see Figure 3 Having the double check system in place increases the accuracy of locking in cylinder.
 
figure 1


figure 1


figure 1



 
 
custom stable
 
The Custom Stable is a life changing scleral lens that can transform your practice. It fits easy, has exceptional visual acuity and provides all day comfort. With its ability to vault the cornea and create a natural tear lens the Custom Stable™ is a great fit for regular and irregular corneas that need the best in comfort and performance. Contact Valley Contax today to get started.
 
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OPTIMUM CONTAMAC
 
For superior performance and comfort Valley Contax recommends Optimum GP materials by Contamac for the Custom Stable line of lenses.
 
 
 
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Order our 12 lens Custom Stable Elite fitting set at the discounted price of $300 and we'll give you
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custom stable |  TRAINING COURSE
 
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  Want to learn to fit the Custom Stable lens? It's easy, just visit our website and take the Custom Stable Training Course. It's free, just watch the 17 minute video and complete the quiz. You'll receive a certificate of completion and a coupon once you've passed.  
 
 
 
About Valley Contax
 
Valley Contax is the world's leading independent custom contact lens manufacturer. Since 1981 we've built a reputation and following for exceptional products and customer service. From our state-of-the-art facilities in Springfield, Oregon we staff the industries most talented lab technicians, customer care representatives and consultants. Contact us today, we'd love to get to know you.
 
 
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Custom Stable Fridays: Hands-on Education
 
Want to hit the fast track to learning how to fit the Custom Stable? Join us for one of our Custom Stable Friday sessions. This is a hands-on approach to learning everything you need to know about fitting, application and removal at our state of the art facilities in Springfield, Oregon. Check our website or contact us for available dates and more info.
 
 
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