The Economy Trial Lens Set has the same number of lenses (226 pieces) as the Standard Trial Lens Set
with both plus and minus cylinders, only without color plated rims and handles. The Economy Trial Lens Set includes:
Trial Lens Spheres in pairs of both plus and minus; 0.12D to 4.00D is 0.25D steps, 4.50D to 8.00D in 0.50D steps, 9.00D to 16.00D in 1D steps. Also one pair 18.00D and one pair of 20.00D in plus & minus.
Trial Lens Cylinders in pairs of both plus and minus; 0.12D to 2.50D in 0.25D steps, 3.00D to 4.50D in 0.50D steps. Also one pair 5.00D and one pair of 6.00D in plus & minus.
Trial Lens Prisms 3D,4D,5D,6D,7D and 8D
Trial Lens Prism Pairs 2D, 1D and 0.50D
Auxiliary Trial Lenses; Red, Green, 1mm Pinhole, 1.5mm Pinhole, Slit, and Occluder.
The Economy Trial Lens Set is really an excellent trial lens set for ophthalmology, optometry and opticianry students.