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Use LARS to determine the final prescription:
1. Spectacle Rx: -2.50 -1.25 x130, Trial Lens -2.50 -1.00 x180. Rotation: 30 degrees CCW.: -2.50 -1.00 x100
2. Spectacle Rx: -2.50 -1.25 x130. Trial Lens -2.50 -1.00 x180. Rotation: None: -2.50 -1.00 x130
3. Spectacle Rx: -2.50 -1.25 x130. Trial Lens -2.50 -1.00 x180. Rotation: 7o'clock: -2.50 -1.00 x160.
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