Need to adjust your contact lens power or just want to know about it? Enter your spectacle prescription, and our Contact Lens Advanced Vertex Calculator will provide the adjusted contact lens power.
Contact Lens Vertex Calculator
Calculate precise vertex adjustments for contact lenses
Original Power
0.00 D
Adjusted Power
0.00 D
Vertex Distance
12 mm
Note: This calculator provides precise vertex distance adjustments for converting between spectacle and contact lens powers. For best results, always verify calculations with your eye care professional.
Contact Lens Vertex Calculator Analysis
Component | Description |
---|---|
Spectacle Prescription | Your current eyeglass prescription in diopters. |
Vertex Distance | The distance between the back surface of the eyeglass lens and the front surface of the cornea, typically measured in millimeters. |
Contact Lens Power | The adjusted contact lens power based on the spectacle prescription and vertex distance. |
Formula | Contact Lens Power = Spectacle Prescription / (1 – (Vertex Distance * Spectacle Prescription) / 1000) |
Purpose | Used to adjust the power of contact lenses based on the spectacle prescription and vertex distance, aiding in accurate vision correction. |