Lenses Course
Gain expertise in lens physics from basic principles to practical use in clinics. Cover geometrical optics, ray tracing, diopters, and spectacle design, applying them to actual prescriptions, problem-solving, and clear patient talks in optical shops for safe, effective vision care.

flexible workload from 4 to 360h
valid certificate in your country
What will I learn?
This course offers a quick, hands-on way to master geometrical optics for correcting vision in everyday practice. You'll go over thin-lens basics, sign rules, and ray tracing, then use them for designing glasses, calculating diopters, adjusting vertex distance, and handling refractive errors. With straightforward examples and real clinic cases, you'll do precise calculations and confidently explain lens options.
Elevify advantages
Develop skills
- Perform clinical ray tracing to predict image positions for quick, precise spectacle design.
- Calculate diopters and far points swiftly using real patient measurements.
- Master selecting convex or concave lenses with solid justifications.
- Adjust for vertex distance to perfect prescriptions for comfort and accuracy.
- Communicate optics, limitations, and referrals simply to patients.
Suggested summary
Before starting, you can change the chapters and workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workload.What our students say
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