| Contents of the Course Unit |
Focal point determination and marking with multi-focus and prismatic lenses. Ophthalmic prisms, prismatic effect, calculation of prism direction and amount, principles of prism use, fields. Recognition of telescopic glasses. Montage studies of single and multifocal lenses on frames in various materials. General information about contact lenses. Transposition operations and calculation of the addition value, errors in software and application of glasses prescription. Low vision tools, special purpose frames, glasses repair, template removal and centering. Giving information about the mounting of lenses on nylor and glazan glasses. Reflections and coatings in lenses, prevention and benefits of reflection, absorption, polysizing lenses and their mounting - Calculation of the right amount and edge and center thickness of lenses, determination of nominal and true dioptric strengths of lenses, effect of vertex distance on the dioptric power of glass, High dioptric and lenticular lenses, aphakic lenses, standards of lenses, relations of the eyeglass shop with official institutions and organizations and information about opticism law - Functioning in eyeglasses shops, rules and ethics of optician. Recognition of automatic glass shaving machines, seeing the operation of these machines during store visits, store visits with spectacle glass and frame manufacturers. |
