Background: Processing lab that has lost a LOT of old school expertise in the surfacing dept, I am the Surface Dept Mgr for 9 mos. 99.99% digital lab.
Making a high prism/low power job for a patient. Dr reports last pair resulted in 20/40 while phoropter was 20/20. Suspect center aberration due to 4.33dpt OD and 4.29dpt OS generated prism on top of 5.00dpt OU blocked prism.
I am reprocessing this job on our hard tool line to fine it out after generating to ensure a uniform back surface. One of the tools I require has gone missing. I've got a stash of DAC's foam tool blanks. We've got a V75 generator so I can easily cut a temporary replacement. I'm just not sure if I need to compensate for pad thickness, and if so: How do I calculate this compensation, my google-fu is lacking.
Tool requested by DVI is 1.80base and 4.00cross. Do I need to compensate for the pad thicknesses? or can I just plug these right into my v75 as-is and process? For the sake of completeness DVI is calculating the toric cut for this lens at -1.80base and -3.98cross
Thanks!
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