This document discusses various lens designs and technologies for high plus and minus lenses, progressive lenses, occupational lenses, and photochromic lenses. Key points include lens designs that can accommodate up to +/-16 diopters of power as well as up to 20 diopters of prism. Lens designs like freeform, franklin split, and presto are highlighted for their ability to control high prisms. Segmented lenses, digital surfaces, and specialty coatings are also covered.

1. The computer says NO!

2. High plus and minus lenses
 Super-Lenti Glass
 Super-Lenti HD
 Recre
 Bonding glass
 Double sided working Bi concave
– Sphere and Cylinder
– SV
– Bifocals

3. Compensated powers
 On wraps the powers will change due to
– Wrap angle
– Wearing distance
– Power

4.  Nortor HD SV in a 8 Base
 Full Rx required plus:-
– Optical Centres and heights
– Wrap Angle
– Tilt angle
– BVD trial and actual
– Pupil Diameter
– Lens Curve

5. Sportor optic design but with
reduced edge blend
Reduces both plus and
minus
Peripheral edge blend
45/50mm clear zone
Applied to all lens designs

6.  Segment on the rear
surface
 Blended to make it
invisible
 All Materials
 Adds to +4.00D

7.  Nortor and Ultor XXL free
form
 Effectively produces Up
to a 100mm uncut lens

8. High Prisms and Prism Control
 PUCK
 Slab off Traditional FT28
 Slab of HD PPL
 FT35
 Franklin Split
 Presto

9. PUCK
 1.67 Moulding
 20mm thick
 65mm diameter
 Up to 20D of prism
 Any curve combination

10. Slab Off /On
 Removes unwanted differential vertical prism
 Minimum slab off 2D
– Less on freeform
 Maximum 10D dependent on blank
substance
 SV BIF PAL

11. Anisometropic Corrections
 Base up prism incorporated to relieve
anisometropic Rx’s
 One lens or split between the two

12. Yoked Prism
 Amount dependent on uncut substance

13. Iseikonic Lenses
 Magnification derived from substance and
curves
 Both Rx and Plano

14. Over Decentred D seg
 12mm inwards
decentration
 Amount of Prism
dependent on add

15. Franklin Split
 Produced from two lenses
 Similar appearance to the E line bifocal
 Fully customisable for Prisms and Centres
 Available in all indexes
 Trifocal also available

16. Presto

17. Prism Control Bifocals
 Glass Round segs
 Glass D Segs
– Zeiss Centre Prism Segment
 Franklin Split
 Presto
 Odd Segment sizes
 Over Decentred D seg
 Slab Off / On

18. Odd Size Segments
 Dependent on Add
– d1-d2= 2c(F1-F2)/A
– Larger segment induced more base down prism
 Cost effective
 1.5 index only Glass /Plastic

19. Glass Round Segs
 Solid Rd 22 – Rd30 – Rd 45
– Photochromic Rd 30

20. Glass Prism Control Round Segs
 Glass Round 30mm
 70 x 66 uncut
 Prism up to 6 in 0.50 steps
 Any direction

21. Glass D Segs
 Fused D25 – D28 – D35
 Fused C28
 Zeiss Centre Prism Segment

22. Fresnel
 Up to 40D of Prism
 +16.00DS
 -14.00DS
 D25 Segs +6.00add

23. Possibilities
The digital surface can be applied to any existing
lens type or material

24. Possibilities
 Combi PAL
 Pilotor
 Double

25.  Bifocal with ULTOR
progressive (smart seg)
 Increases the Near
area in size and
working distance

26.  Remake of the popular
Essilor pilot

27. Occupational
 Versatile
 Bureau
 Booster

28.  Near and Intermediate
 Ordered with near vision prescription
 Distance OC’s
 Fit 3 mm below pupil centres
 All materials

29. Bureau
 Near
 Intermediate
 Survival Distance

30.  Lens designed for pre- presbyopia
 Two adds
– +0.37 (A)
– +0.62 (B)
 All materials

31. The Future ?
The practitioner will order PAL’s as a percentage
of Distance Intermediate and near?

32. Photochromic- Tints and Coats
 Xtra Active
 T7 Signature
 Polarised and Drivewear
 Other
– PLS
– Dot Com
– Vista mesh

33. Thank You