VASDR 6035 Compensation for Keratoconus

Hello, 

Does anyone know how the VA rates keratoconus currently? The diagnostic code is 6035. I am new to all this and have been unsuccessful in finding the specifics using the VASDR. I have been diagnosed with bilateral keratoeonus and would like to better inform myself on how it is rated. I am awaiting a decision back from the VA but my case and evidence is overwhelming. To date, I have found only one article dating back to 2008 that appeared to show the  minimum rating use to be 30% but I am unable to gauge the accuracy. Any assistance is helpful.