Trial lens set is an ophthalmology calculating apparatus used by hospital ophthalmology and optical shops for eye examination. It mainly consists of positive / negative sphere lens, positive / negative cylinder lens, prism lens and accessory lens, etc.
The Japan made TOWA TL-35F is double curve trial lens set which offers a standard selection of lens powers to meet practitioner's need.
FEATURES:
* Double curve lenses of 38mm in diameter
* Metal rims (+lenses: gold plated / -lenses: silver plated)
* Removable plastic inner tray with labels of silver
backgrounds
* Aluminium carrying case with lock