Lenses Course
Gain command of lens physics from basic principles right through to clinical use. Cover geometrical optics, ray tracing, diopters, and spectacle design, applying them to actual prescriptions, fixing issues, and communicating clearly and safely with patients in the optical shop. This builds strong skills for real-world vision care in Sierra Leone settings.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
This Lenses 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 spectacles, 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
- Clinical ray tracing to predict image spots for quick, spot-on spectacle design.
- Diopter and far point calculations to figure lens power fast from patient details.
- Expert lens selection, picking convex or concave lenses with solid reasons.
- Vertex distance tweaks to fine-tune prescriptions for sharp, comfy sight.
- Clear patient talks, explaining optics, limits, and referrals in simple daily words.
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 workloadWhat our students say
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