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Base Curve Selection Tool

Multi-algorithm, material-aware, dual eye front curve recommendation

OD (Right Eye)

SE: -4.75 D |  Cyl: -1.50 D |  Axis: 180°

OS (Left Eye)

SE: -4.00 D |  Cyl: -1.00 D |  Axis: 175°

Base Curve Recommendations

OD — Right Eye — Recommended Base Curve
+4.00 D
Acceptable Range
+3.25 – +4.75 D
SE
-4.75 D
Confidence: High
Why High? SE -4.75D falls within optimal Vogel predictive range and frame parameters are standard.
Algorithm Comparison
Vogel
+3.63 D
Tscherning
+3.60 D
Stock Opt.
+4.00 D
Stock Availability
+4.00 DPrimary
0.00D off ideal
Negligible — no perceptible optical effect
+3.50 DAlternative
0.50D off ideal
Moderate — some peripheral distortion possible at high powers
Optical Quality: Good — balanced optical performance, aspheric recommended above ±4D
Cosmetic Profile: Favorable for minus — this curve reduces edge thickness effectively
Adaptation Risk: Low-Medium — standard adaptation expected, monitor for swim
Computation Breakdown
Base (vogel): +3.63
Final: +4.00
OS — Left Eye — Recommended Base Curve
+4.50 D
Acceptable Range
+3.75 – +5.25 D
SE
-4.00 D
Confidence: High
Why High? SE -4.00D falls within optimal Vogel predictive range and frame parameters are standard.
Algorithm Comparison
Vogel
+4.00 D
Tscherning
+3.90 D
Stock Opt.
+4.50 D
Stock Availability
+4.50 DPrimary
0.00D off ideal
Negligible — no perceptible optical effect
+4.00 DAlternative
0.50D off ideal
Moderate — some peripheral distortion possible at high powers
Optical Quality: Good — balanced optical performance, aspheric recommended above ±4D
Cosmetic Profile: Cosmetically neutral — standard profile expected
Adaptation Risk: Low-Medium — standard adaptation expected, monitor for swim
Computation Breakdown
Base (vogel): +4.00
Final: +4.50

Clinical Note: Base curve recommendations are starting points based on SE, material, design, and frame geometry. Final selection should account for lab capabilities, manufacturer lens family constraints, and patient adaptation history. Digital/freeform designs reduce sensitivity to base curve selection significantly.