Dial Vision glasses – the answer to a problem nobody was having?
Adjustable lens glasses have been popping up for years now, offering some obscure convenience of being able to change diopters simply by turning a knob or dial on the frame.
This doesn’t make a whole lot of sense since a single focal plane change should address most of your distance vision needs, and ideally that single focal plane should be carefully considered and chosen. Elsewhere here on the blog we discuss the potential negative impacts of too many arbitrary focal plane changes on your visual cortex, and the importance of good optical quality lenses.
Why should you not get dial vision glasses, or generally any adjustable lens type of glasses?
First, low optical quality.
Second, no need to be changing diopters around.
Third, you never quite know exactly how many diopters you’re using.
Fourth, you might be tempted to add more diopters and inadvertently increase your myopia further.
Fifth … come on. They look ridiculous!
A quick video review on dial vision glasses, and the whole adjustable lens premise:
We also discussed adjustable focus lenses previously as well as another brand of these, eyejusters.
Stick with the simple thing for best results. No monkeying with knobs and diopters!