I'm looking for a technician that knows the secret to surfacing minus rx's on an 8 bc in polycarb. I'm using the 8 bc to accomidate the star trek frames that we're getting alot of. This one job was -500 and the Dr. requests a 6 bc. I made an 11.00 tool with my foam lap and out of 5-6 lenses I never got a "perfect"lens just an exceptable one. If you know something please I'm looking fprward to hearing your response.
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