BI Convex lens in new PAL designs???

[Eyefish]

Just wondering in all PAL designs are available in a BI-Convex lens design or am I limited with the newer PAL designs. Say a Physio 360 for example.

Here is the Rx I need to fill:
+7.75-2.00x138
+9.75-3.75x13
+2.50 add.

Currently in Ess. Natural, 7BC, Bi-Convex.

Thanks in advance for everyones imput

Paul

[xiaowei]

Just wondering in all PAL designs are available in a BI-Convex lens design or am I limited with the newer PAL designs. Say a Physio 360 for example.

Here is the Rx I need to fill:
+7.75-2.00x138
+9.75-3.75x13
+2.50 add.

Currently in Ess. Natural, 7BC, Bi-Convex.

Thanks in advance for everyones imput

Paul

Hi Paul,

as far as a short search on the net revealed, Physio and Physio 360 (as an example) seem to be limited to max. +9.00 anyhow, at a "base curve" of +8.00, so any (total) power > 8.00 would end up in a biconvex design.

Essilor does not really give base-curves for the 360, probably because the concept of a "spherical base curve" eventually looses any sense in that free-from design.

Seems you specifically prefer a biconvex design?

Hope this helps!?

[Robert Martellaro]

The Individual 1.60 index (Zeiss) goes up to +13.00 and a -6.00 Cyl. Ipseo (Essilor) and Impression Hyperope (Rodenstock) are in this power range but may not be available in your area. All would provide for a significant improvement in off-axis vision compared to a traditional grind bi-convex, especially in the distance periphery of the left eye, if the wearer is not amblyopic. If the BCVA in the left is poor, then I would concentrate on the right eye, where there are many reasonably good options to choose from (+8.50BC Comfort 1.60 et al) that would not require a convex back curve.

[Craig]

Just wondering in all PAL designs are available in a BI-Convex lens design or am I limited with the newer PAL designs. Say a Physio 360 for example.

Here is the Rx I need to fill:
+7.75-2.00x138
+9.75-3.75x13
+2.50 add.

Currently in Ess. Natural, 7BC, Bi-Convex.

Thanks in advance for everyones imput

Paul

This RX can be done by Ice-Tech; in a bi focal they can thin the edges to create an amazing optical zone with the excess lens surfaced away. In a progressive teh RX can also be done as well as any in the world, but the thinning process is not yet avaiable on the progressive.
At that power, I would put her in the dual zone and they will be the thinnest lightest glasses she has ever worn and the off axis optics will blow her away.
He can be reached at 1-888-ice-tech.

This is the future of surfacing and please let me know how your client likes the lenses.

Craig

[Freedom]

Try to see Rodenstcck Impression ILT Hyperope