- Clinical optometrist for over 30 years in Toronto Canada.
- Chief of Low Vision, The Vision Institute of Canada
- Founder of the Scarborough Low Vision Centre.
Adjunct Associate Research Professor University of Waterloo
Area of Research Amplyopia
Area of specialty: Binocular Ophthalmic Optics
Chief Scientists and founder at Shaw Lens
Inventor of an improved Spectacle Lens Design Method
So what does this have to do with behavioral optometry? Well, lots, and I love to talk about it. Send me your questions in advance of CVE2015!
- How I see binocular vision ,
- Two pillars: sensory fusion and motor fusion
- Static aniseikonia: presents and obstacle to sensory fusion
- Dynamic aniseikonia; presents an obstacle to motor fusion
Poorly or randomly (lab) designed lenses may be creating optical aniseikonia and optical anisophoria
- iseikonic/Isophoric spectacle lenses create the foundation upon which the two pillars can stand upright.
- Iseikonic vs Isogonal, an isogonal lens system has the iseikonic prescription at 0% static. An iseikonic Rx is whatever it is that eliminates static aniseikonia. Contact lenses are isogonal.
Determination of the iseikonic Rx from history and clinical findings without a space eikonometer.
- Automated ophthalmic lens design software,
Application in the real world
- The robust binocular vision patient, fused in all gaze positions and distances , stereo acuity exceeds 20″, no suppression, absence of amblyopia, fast vergence facility and adequate amplitudes . With eyeglasses on.
- The fragile binocular vision patient hallmarks include: suppression scotoma, stereopsis less than 20″, reduced visual acuity, discomfort, fixation disparity in non centered or centered gaze, non-concomitancy etc.
- Lens design by diagnosis
- Anisometropia secondary to cataract/surgery or refractive surgery
- Scleral Buckle
- Additional Business Notes for Clinical Practice