There are many reasons to check for stress in mounted lenses. Too much stress on a lens may not manifest itself until the day your patient exits a warm office building into sub-freezing temperatures and the lens implodes. Aside from viewing stress patterns you can determine axis in polarized lenses. This is a compact bench top model that you can hold in your hand. Operates using two AA batteries (included). 2-3/4" W x 2-3/4" H x 4" D.
Shorten the amount of time you spend explaining vitreous floaters. The VFD model of the eye demonstrates how floaters suspend and drift. This visual aid minimizes patient confusion and cumulatively saves hours of exam time.
Patients will easily see and quickly comprehend the how and why about "spots and floaters", without having to give repetitive and possibly alarming explanations. A shake of the globe sends the "floaters" swirling, pausing and drifting downwards, replicating what the patient is experiencing.
The Vitreous Floater Demonstrator features mesh particles in a clear dense vitreous fluid. The housing is made of clear, durable molded plastic with an attractive eye applique.