OD 240 - Ophthalmic Dispensing III

Credit Hours: 3

Instruction will include, but not be limited to, the following: review of OD 150; preparation for the A.B.O. examination; determining positional lens power; the preliminary eye examination including the correction of refractive errors and the use of ophthalmic equipment; accommodation and convergence ratios; segment and add power determination and Aniseikonia. Other topics include absorptive lenses and the use of specialty coatings and lenses.

Course Outcomes
Upon completion of this course, the student will be able to:

understand presbyopia and corrective lenses used for this condition;
evaluate difference lens styles; compare and contrast the multitude of lens styles available;
manipulate patients Rx to meet differing visual requirements;
review proper fitting height and segment placement;
discuss specialty lenses used in the correction of presbyopia;
review key prism principles;
analyze and understand vertical imbalance and its visual effects;
learn methods for calculating vertical imbalance;
examine and understand methods used for the correction of vertical imbalance;
examine historical methods used for the correction of presbyopia and understand current lifestyle needs of presbyopic patients;
identify the concept and early design of progressive addition lenses;
analyze and evaluate current technology use in the creation of modern progressive lenses;
learn and practice proper methods of fitting and dispensing progressive lenses;
discuss specialty progressive lens designs;
examine and discuss different types of absortive lenses available;
examine effects of glare and radiant energy on the eye;
discuss and understand evolution of photochromic lenses;
understand effects of different lens coatings on ophthalmic lens surfaces (scratch resistant, anti-reflective, mirror.);
review lens design basics;
discuss the effects of base curve selection, Vogel’s formula and lens aberration and distortions;
compare and contrast spherical, aspheric and toric surfaces; and
examine different Hi index lens materials.

Prerequisites: OD 150, OD 160
F (N)