BOBO0221p Spectacles Optics I - lecture

Faculty of Medicine
Spring 2009
Extent and Intensity
2/0/0. 2 credit(s). Type of Completion: z (credit).
Teacher(s)
prof. RNDr. Radim Chmelík, Ph.D. (lecturer), doc. MUDr. Svatopluk Synek, CSc. (deputy)
Guaranteed by
prof. RNDr. Radim Chmelík, Ph.D.
Department of Optometry and Orthoptics – Departments of Non-medical Branches – Faculty of Medicine
Contact Person: Anna Petruželková
Timetable
Mon 14:30–16:30 249
Prerequisites (in Czech)
BOAF0131p Eye's anatomy and physiology I && BOGO0121c Geometric Optics I-p
Course Enrolment Limitations
The course is only offered to the students of the study fields the course is directly associated with.
fields of study / plans the course is directly associated with
Course objectives
Instruction of the course spectacle optics (brýlová optika) is based on the knowledge of fundamental laws of geometrical optics which is applied to the eye as a multielement optical system possibly affected by various refraction errors (myopia, hypermetropia, presbyopia, astigmatism, anisometropia, aniseikonia, aphakia). Various types of corrective spectacle lenses are introduced according to the specific refraction errors including design of their technical parameters. At the end of the course, student should be able to: understand the optical performance of the eye; describe the optical aberrations of the eye; design suitable corrective optical elements.
Syllabus
  • 1. Fundamental laws of geometrical optics. The Fermat principle, law of reflection and refraction at an interface of optical media, Reusch’s geometric construction. 2. Gaussian and Newtonian form of the thin-lens formula, convention in geometric-optical variables description, general and paraxial ray, calculation of spherical aberration of a thin lens. 3. Imaging by the system of two centred optical surface in paraxial space. Principal points and planes of an optical system, transversal, longitudinal (axial) and angular magnification, the Helmholtz-Lagrange law. 4. Gullstrand’s equation. Characteristic magnification of the lens, positions of the principal planes from the apices of spherical surfaces in dependence on their optical power. 5. Gullstrand’s schematic eye. Corneal and lenticular imaging system of the eye. 6. The overall optical system of Gullstrand’s schematic eye – calculation. 7. Geometric-optical tabular calculation of Gullstrand’s schematic eye in the paraxial space as a multi-element optical system. 8. Eye anatomy. Photopic and scotopic vision, size of images on the eye retina, the maximum resolving power of the eye. 9. Concept of optotypes. Calculation of basic parameters, Czech and international optotype, visus, visual acuity angular and coincidence, general demands on optotypes. 10. Emetropic, myopic a hypermetropic eye. Distant (far) point, near point, axial refraction, accommodation interval, amplitude of accommodation, vergence, spherical ametropia. 11. Myopic eye. Axial and refractive myopia, etiology of myopia, correction of myopia, conversion of apical refractive power of a spectacle lens in dependence on its position from the cornea, image size on the retina – examples. 12. Hypermetropic (hyperopic) eye. Axial and refractive hypermetropia, optically-anatomic symptoms of hypermetropia, correction of hypermetropia, conversion of apical refractive power, image size on the retina – examples. 13. Aphakic eye. Correction of aphakia by a spectacle lens, correction of aphakia by a contact lens, intraocular lens. 14. Eye length with respect to the character of axial refraction. Axial and refractive ametropia, aniseikonia in dependence on the character of axial refraction. 15. Revision – written exam, assessment.
Literature
  • Baštecký R.: Praktická brýlová optika
  • Brýlová optika pro SZŠ, Mgr.Rutrle M, IDVPZ Brno, 1993
  • 3. Kingslake, R.: Applied Optics and Optical Engineering. Vol. VII. Academic Press. New York, San Francisco, London 1979
  • BALÍK, J. and J. BOBEK. Technický sborník oční optiky. Edited by J. Polášek. 2. vyd. Praha: Oční optika, 1975, 579 s. info
Assessment methods
lecture, credit
Language of instruction
Czech
Further Comments
Study Materials
The course is taught annually.
Listed among pre-requisites of other courses
The course is also listed under the following terms Spring 2000, Spring 2001, Spring 2002, Spring 2003, Spring 2004, Spring 2005, Spring 2006, Spring 2007, Spring 2008, Spring 2010, Spring 2011, Spring 2012, Spring 2013, Spring 2014, Spring 2015, Spring 2016, Spring 2017, Spring 2018, spring 2019, spring 2020, spring 2021, spring 2022, spring 2023, spring 2024, spring 2025.
  • Enrolment Statistics (Spring 2009, recent)
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