BOBO0322c Spectacles Optics II - practice

Faculty of Medicine
autumn 2020
Extent and Intensity
0/0/1. 1 credit(s). Type of Completion: z (credit).
Taught online.
prof. RNDr. Radim Chmelík, Ph.D. (seminar tutor)
Guaranteed by
prof. RNDr. Radim Chmelík, Ph.D.
Department of Optometry and Orthoptics - Departments of Non-medical Branches - Faculty of Medicine
Contact Person: Lenka Herníková
Supplier department: Department of Optometry and Orthoptics - Departments of Non-medical Branches - Faculty of Medicine
Wed 12:00–13:40 KOM 409
BOBO0221p Spectacles Optics I-lec. && BOPR0242 Optical Practice II
Knowledge of geometric optics and optics of spherical refractive errors of the eye.
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
The aim of the course is to teach students to understand and optically describe the process of accommodation of the eye, and to derive optimal parameters of spectacle lenses for correction of spherical refractive errors of eye, its astigmatism and presbyopia.
Learning outcomes
On completing the course, student will:
- understand the optical nature of the eye accommodation, the basics and correction of presbyopia
- be able to calculate and recalculate the design and optical parameters of spectacle lenses on the basis of given correction value
- understand the fundamentals and the optical method of optimizing the values of peripheral astigmatism and the field curvature of spectacle lenses
- understand the prismatic effect of prism and lens, understand the optical design of bifocal and multifocal spectacle lenses, the method of determining intervals of sharp vision
- understand the optical basis of the use of aspherical surfaces
- understand the method of correction of axial (eye) astigmatism and how to recalculate the correction
  • 1. Accomodation (basic concepts, mechanism of accommodation, Purkynie imagess, change of Gullstrand's eye parameters during accommodation, accommodation measurement, dependence on age: Duane's graph, optical analysis of the accommodation process: Graeff factor, near point for the corrected ammetropic eye)
  • 2. Presbyopia and its correction (nature of the defect, technical possibilities of correction, correction for the emetropic eye, choice of addition, correction for the ametropic eye, intervals of sharp vision)
  • 3. Spectacle lenses (basic forms of lenses with spherical surfaces, calculation of powers and radii of surfaces based on specified lens parameters)
  • 4. The spectacle lens aberrations (basic overview, field curvature, Petzval-Coddington condition, effect of field curvature at eye rotation, tangential and sagittal plane, peripheral astigmatism, its correction: condition of zero peripheral astigmatism, Tscherning's ellipse, point-focus lenses, correction for thick lenses, other philosophies of lens design, modern designs, aspherical surfaces, optical properties of materials for spectacle lenses)
  • 5. Bifocal and multifocal lenses (prismatic effect of optical prism and lens, effect of lens decentration, bifocal lenses, requirements for their implementation, elimination of image jump on the interface, sharp vision intervals, trifocal lenses, multifocal lenses: lenses with progressive addition)
  • 6. Eye astigmatism and its correction (etiology and classification of astigmatism, correction of eye astigmatism, cylindrical and toric spectacle lenses, principles of recalculation of astigmatic combinations)
    recommended literature
  • BALÍK, J. and J. BOBEK. Technický sborník oční optiky. Edited by J. Polášek. 2. vyd. Praha: Oční optika, 1975. 579 s. info
  • BAŠTECKÝ, R.: Praktická brýlová optika.R+H optik, Praha 1997.
  • RUTRLE, Miloš. Brýlová optika. 2. přeprac. vyd. Brno: Institut pro další vzdělávání pracovníků ve zdravotnictví, 1993. 144 s. ISBN 8070131454. info
  • TUNNACLIFFE, A. H. : Introduction to Visual Optics. ABDO College, Canterbury 2004.
    not specified
  • KEPRT, E. : Teorie optických přístrojů III. Oko a jeho korekce.SPN, Praha 1966.
  • SCHWIEGERLING, J.: Field Guide to Visual and Ophthalmic Optics. SPIE, Bellingham 2004.
  • HAVELKA, Bedřich. Geometrická optika. 1. 1. vyd. Praha: Československá akademie věd, 1955. 344 s. info
  • HAVELKA, Bedřich. Geometrická optika. 2. 1. vyd. Praha: Československá akademie věd, 1956. 289 s. info
Teaching methods
computational exercises, class discussion, group project
Assessment methods
Two written tests, level of 50% assessment needed to pass.
Language of instruction
Further comments (probably available only in Czech)
The course is taught annually.
Information on the extent and intensity of the course: 15.
Listed among pre-requisites of other courses
The course is also listed under the following terms Autumn 2000, Autumn 2001, Autumn 2002, Autumn 2003, Autumn 2004, Autumn 2005, Autumn 2006, Autumn 2007, Autumn 2008, Autumn 2009, Autumn 2010, Autumn 2011, Autumn 2012, Autumn 2013, Autumn 2014, Autumn 2015, Autumn 2016, Autumn 2017, autumn 2018, autumn 2019.
  • Enrolment Statistics (recent)
  • Permalink: