Ophthalmic lens and Spectacle Making Techniques

Course Name : Ophthalmic lens and spectacle manufacturing technique.

Course Code : CUTM3123

Course Objective : 

This course deals with understanding the theory behind spectacle lenses and frames, their materials, types, advantages and disadvantages, calculations involved, and when and how to prescribe. It will impart construction, design application, and development of lenses, particularly of the methods of calculating their power and effect.

Learning Outcomes :

• Cutting and insertion of lenses into frames.
• Different types of materials used to make lenses and its characteristics
• Lens designs–Bifocals, Progressive lens
• Tinted, Protective & Special lenses
• Spectacle frames –Manufacture process & Materials
• Art and science of dispensing spectacle lens and frames based on the glass prescription.
• Reading of spectacle prescription. Counseling the patient
• Frame & lens measurements and selection
• Writing spectacle lens order
• Facial measurements - Interpupillary distance measurement and measuring heights (single
• vision, multifocal, progressives)
• Lens verification and axis marking and fitting of all lens types
• Final checking of finished spectacle with frame adjustments
• Troubleshooting complaints and handling patient’s questions.

MODULE- 1

• Frame Types and Frame Materials
• Ophthalmic Lens Materials

MODULE -2

• Introduction to Lens Manufacturing
• Types of Lens Designs

MODULE -3

• Identifying the power of ophthalmic lenses – Spherical, Cylindrical, Spherocylindrical
• Hand Neutralization, Lensometer.

MODULE -4

• Frame Measurements
• Facial Measurements

MODULE -5

• Ophthalmic Lens Cutting, Edging, Insertion.

MODULE -6

• Neutralization and Verification – Bifocals and Progressive

MODULE -7

• Spectacle Repair, Methods and Adjustments.

References

1. Jalie MO: Ophthalmic lens and Dispensing, 3rd edition, Butterworth –Heinemann, 2008
2. Troy E. Fannin, Theodore Grosvenor: Clinical Optics, 2nd edition, Butterworth Heinemann, 1996
3. C W Brooks, IM Borish: System for Ophthalmic Dispensing, 3rdedition, Butterworth - Heinemann, 2007
4. Michael P Keating: Geometric, Phisical& Visual Optics, 2nd edition, Butterworth – Heinemann, 2002

Session 1

• Frame Types and Frame Materials
• Ophthalmic Lens Materials

https://www.slideshare.net/faslu1143/frame-measurementsand-markings

Session 2

• Introduction to Lens Manufacturing
• Types of Lens Designs

https://www.slideshare.net/faslu1143/ophthalmic-lens-manufacturing

Session 3

• Identifying the power of ophthalmic lenses – Spherical, Cylindrical, Spherocylindrical
• Hand Neutralization, Lensometer.https://www.slideshare.net/hmirzaeee/lens-power-measurement

Session 4

• Frame Measurements
• Facial Measurements

https://www.slideshare.net/MeghnaVerma25/facial-measurement

Session 5

• Ophthalmic Lens Cutting, Edging, Insertion.https://www.slideshare.net/faslu1143/ophthalmic-lens-manufacturing

Session 6

• Neutralization and Verification – Bifocals and Progressivehttps://www.slideshare.net/faslu1143/progressive-addition-lenses-67927655

Session 7

• Spectacle Repair, Methods and Adjustments.
• https://www.slideshare.net/faslu1143/frame-adjustment-and-quality-checking