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Ophthalmic Optics

Code 12505
Year 2
Semester S1
ECTS Credits 6
Workload PL(30H)/TP(30H)
Scientific area Optics
Entry requirements Basic knowledge of trigonometry and geometrical optics.
Mode of delivery Face-to-Face
Work placements Not applicable
Learning outcomes In this UC is intended that students learn and apply the fundamental principles of ophthalmic optics including the various steps associated with the selection, prescription and fitting of ophthalmic lenses as a traditional way to compensate refractive errors. At the end of this course unit student should be able to: Measure the geometrical parameters associated with ophthalmic lenses; Identify the types of materials and treatment of lenses and frames; Identify spherical, astigmatic, aspheric, toric and multifocal lenses; Understand the power resulting from oblique cross cylinder; Calculate the prismatic effects induced by decentralization; Describe the effects of ophthalmic lenses on the visual field, accommodation and image size; Measure the power of spherical, astigmatic monofocal lenses and multifocal lenses; Analyze and interpret prescriptions for ophthalmic lenses; Mounting ophthalmic lenses in frames according to the parameters of ophthalmic prescription.
Syllabus 1. Introduction to ophthalmic optics
2. Fundamentals of optical paraxial
3. Materials and classification of ophthalmic lenses and frames.
4. Types of surface treatment of ophthalmic lenses.
5. Ophthalmic lenses and astigmatic spherical monofocal and multifocal.
6. Aspherical ophthalmic lenses.
7. Toric lenses.
8. Obliquely crossed cylinders
9. Prisms and prismatic effects
10. Decentralization in ophthalmic lenses.
11. Visual fields with ophthalmic lenses
12. Accommodation and convergence with ophthalmic lenses
13. Magnification with ophthalmic lenses
14. Workshop material and tools
15. Focimeter.
16. Analysis and interpretation of optometric prescriptions.
17. Selection and mounting lenses in frames.
18. Problems of adaptation to ophthalmic lenses.
Main Bibliography Iglésias, J., Rodríguez, A., Óptica oftálmica: teoría y problemas, ICM, 2018.
- Brooks, C. W., Borish, I. M.; (1996), System for ophthalmic dispensing (3rd ed.), Boston: Butterworth-Heinemann.
- Clifford W. Brooks, Essentials of Ophthalmic Lens Finishing (2rd ed) , Butterworth, Heinemann/Elsevier.
- Jalie, Mo; (2008), Ophthalmic lenses and dispensing (3rd ed.), Edinburgh: Butterworth Heinemann/Elsevier.
- Wakefield, K. G.; Stone, J.; (2000), Bennett's ophthalmic prescription work (4th ed.), Oxford: Butterworth, Heinemann.
- Keating, M. P.; (2002), Geometric, Physical and Visual Optics (2nd ed.), Butterworth-Heinemann.
- Bennett, A.G.; Rabbetts, R. B.; (1989) Clinical Visual Optics (2nd ed.), Butterworths – U.K.
Teaching Methodologies and Assessment Criteria Evaluation is either periodic or final, following the rules of UBI.

The periodic evaluation is based on lab tests (P) and a written test (T).
Final mark: CEA = 1 / 2T + 1 / 2P.
Both, P and T, need to be >= 9,5 (in 20).

The final evaluation is based on a written examination (E). Requires “frequency” (to carry out P>=9,5). The final mark takes into account CF = 1 / 2E + 1 / 2P.

To obtain CEA or CF > 16, an oral examination is mandatory. Final result is max{16,PO}. All students who want to improve their CF can request the oral examination.
Language Portuguese. Tutorial support is available in English.
Last updated on: 2024-01-16

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