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Frames

Trial Lens Sets

and Trial Frames

Chronological History

1900 - Trial Lens sets

AO produced a trial lens design by Charles Prentice. This set was composed of biconcave minus lenses of true curve out the convex plus lenses were designed to neutralize the minus lenses. This meant that the lenses were almost exactly true vertex refractions or effective power. The first lenses so made. This principle is still used in our trial lens sets. Only the rings & cases have been updated.

1900 - Trial Frames

Used in conjunction with trial lenses.

 

Trial Lens Sets

 

Trial Set

Trial Lens sets Plus & Minus Cyl
266 Alluminium case

Trial Set

Trial Lens Plus & Minus Cyl
266 Lethers case

 

 

 

Trial Frames

 

metal trial frame

Universal Trial Frames
Oculus UB4

Trial Set

Classic Trial Frames
Oculus UB3

Trial Set

Half Trial frames
Oculus

Trial Set

Universal Trial Frames
Luxvision

 

 

 

 


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Phone: (305) 593 - 2015

Fax: 1.866.615.2426

Optivision2020, Inc.

3026 NW 79 AVE.
Miami, Florida 33122

 


Frames

Used Equipment in Stock

used ophthalmic combo chair and stand
Used Marco combo
90 days warranty
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