Products
Aniseikonia Inspector
Aniseikonia Testing Service
Color Vision Recorder
Size Lens Set
Product description
How to use size lenses
Price / Order
Background info
Aniseikonia
Color vision defects
Color vision testing
Size lens set
Product description
Optical Diagnostics sells a set of size lenses for aniseikonia management with the following specifications:
- Set of 7 lenses
- Optical magnification 1-7%
- Fitted into standard trial lens rings
Why use size lenses?
Size lenses are lenses without refractive power, but with an optical
magnification. They are often used to evaluate the effect of an
aniseikonic correction on a patient's binocular vision comfort. A
size lens check is therefore recommended before designing and ordering
iseikonic lenses for a patient. Especially with retinally-induced
aniseikonia, where the aniseikonia is not constant over the retina, size
lenses are extremely useful to evaluate if and what aniseikonia
correction helps the patient's binocular vision comfort.
Size lenses could also be used to induce aniseikonia. This allows a 'normal' to experience the binocular discomfort of an aniseikonia patient.