For Patients
Low Vision ServicesFor Eye Care Professionals
| To My Colleagues. Forget what you were taught in optics, the Gulstrand paraxial equations are not adequate for the design of ophthalmic lenses. Optometrica is a comprehensive design tool that provides clinically proven solutions . Aniseikonia is present in about 8% of the population and is ignored 99% of the time. Using Optometrica you can differentiate your practice from the mass marketer discount providers and assist your patients with enhanced vision and depth perception. |
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| What is Optometrica? | Lens modeling and design software that predicts the physical and optical properties of an ophthalmic lens system (spectacles) prior to manufacture from a database of commonly used lenses. Optometrica uses analytical geometry to calculates physical properties of lenses in real time for a given frame and prescription. The resultant properties are displayed on screen both numerically and graphically |
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| How it benefits your practice | Extending the doctor
patient relationship into the
dispensary Provide an unsurpassed level of dispensing in reducing errors and redos, Give your office an edge over the mass market chains Enable staff to choose the best lens for a patient using sound optometric methods automatically Present the office as being truly modern with computer simulation |
| Patients that benefit | Computer users Pre and post cataract with anisometropia Post retinal detachment with resultant aniseikonia Children and adults with refractive amblyopia Patients with binocular vision problems requiring prism Progressive lens wearers Patients concerned about edge thickness and seeking value Hyperopic patients Contact lens wearers |
| Why is Optometrica better? | Using analytical geometry as opposed to antiquated formulae such as Prentice's rule, it more accurately predicts outcomes. |
| What properties does Optometrica display? | Thickness ( nasal,
temporal, superior, inferior, centre) Chromatic Aberration in the near reading zone (due to Abbe value, lens design, Rx, eccentricity) Interocular sensory spectacle magnification (static %) Interocular fusional magnification (dynamic %) Anisophoria in the near zone (in cm/m) Progressive lens corridor length Field of view with progressive and ergonomic computer lenses integrating corridor length and frame size showing near, computer and distance effects Depth of field with progressive and ergonomic computer lenses On screen layout templates for Rx analysis Optimal inset calculations (sensitive to vertex, Rx, lens design and face form angle) Comparison of the benefits of a back surface, position of wear digital progressives |
| Special design tools for anisometropia | Optometrica can
review all lens products for a
given
Rx, correct for anisometropia and the associated aniseikonia then rank
the lenses in descending order of suitability. Design iseikonic, isogonal or optimized lens systems for anisometropia automatically for any particular lens. Manually design lenses by varying base curve and thickness (Optometrica takes into account vertex distance changes due to lens shape and thickness changes) Optometrica uses ray tracing to determine the exact prismatic effect both in horizontal and vertical meridia |
| Special design tools for ergonomic computer lenses | Easily demonstrate the
impact of regular progressive
lenses versus ergonomic computer lenses Instantly demonstrate the field and depth of focus |