Issuu on Google+

A varifocal lens inspires confidence The tried and tested lenses from the be 4ty+ family provide the utmost satisfaction in all areas of life!


For daily well-being Variable-focus lenses are becoming ever more important for the presbyopic spectacle wearer. They make natural vision possible over all distances, just as was possible during one’s youth, so increasing personal well-being. Apart from seeing naturally, the presbyopic spectacle wearer expects quality, thin and light lenses, with enhanced aesthetic appeal. A high-performance variable-focus lens has been developed in the form of the be 4ty+ which, with its integral, technically optimised and intelligent design, fully meets individual customer requirements.

be 4ty+ offers: the latest technology natural vision owing to a broad viewing angle • optimum visual comfort when rapidly changing viewing angle • no swaying effects • best spontaneous tolerance • •

Technology The be 4ty+ family lenses have an optimised aspheric front surface over the entire area of the lens. The possibilities for laying out the asphericity are, in connection with the mathematical procedure for describing the surface, so varied that the surface can be precisely influenced over both large and small surface elements. The three dimensional splines functions used here have proven their worth not only with our varifocal lenses but, for a long time now, also in the high-tech industry for the specification of completely asymmetrical free forms, e.g. in the aircraft industry for the specification of wing profiles. Thanks to the technology of the integral optimised design, a be 4ty+ lens makes it possible for the wearer to see both short and long distances comfortably as well as giving them a natural spatial perception. The high quality lenses are aesthetic, flat and thin.

Standard varifocal lens

be 4ty+ / be 4ty+ Short


Advantages With the asphericity of the distant vision, be 4ty+ provides the wearer with aesthetic lenses with exceptional imaging properties and a large as well as exceedingly comfortable field of vision.

Visual acuity be 4ty+

Visual acuity standard varifocal lens

Since the flank of the surface astigmatism is clearly flattened at the edges of the progression channel, the wearer perceives the progression channel as being physiologically broader.

Astigmatism be 4ty+

Astigmatism standard varifocal lens

25

25

20

20

15

15

10

10

5

5

0

0

5

5

10

10

15

15

20 25

Thanks to the characterization of astigmatism, be 4ty+ is offering high spontaneous tolerability for the wearer without the well-known swaying effect.

20

20

15

10

15

0

5

10

15

20

25

Position of the axis standard varifocal lens

25

20

15

10

15

0

5

10

15

20

25

Position of the axis be 4ty+

The inset of be 4ty+ is variable depending on the remote and additional effect. The visual field of both eyes is covered with the progressive range. In this way the use of the full width of the progressive and close-up ranges can be used by the wearer.

Short-sightedness

Far-sightedness

The prismatic side effects for the right and left eye are harmonised in such a way that the prismatic differences caused lie below the perception threshold. The fusion of the visual perceptions of both eyes is guaranteed.


Product information be 4ty+

be 4ty+ Short

Balanced optimisation of the whole varifocal lens design

Asphericity of distant range

Progressive range according to physiological demands

Natural vision with a broad viewing angle

High spontaneous tolerance

Minimum fitting height [mm]

18

16

Materials

Organic Mineral

be 4ty+

ORGA 150 / ORGA 150 Transitions

ORGA 160

ORGA 167 / ORGA 167 Transitions

ORGA 174

be 4ty+ Short

ORGA 150 / ORGA 150 Transitions

MIN 160 / MIN 160 Photo

ORGA 160

Engravings Organic lenses be 4ty+

Temporal

Nasal ORGA 150

ORGA 160

ORGA 167

20

be 4 ty+

be 4 ty+

be 4 ty+

20R

be 4 ty+

be 4 ty+6

ORGA 150

ORGA 160

ORGA 174 be 4 ty+

be 4ty+ Short

Mineral lenses

Temporal

Nasal

be 4ty+ 20

Optiswiss AG • Lyon-Strasse 26 • CH-4053 Basel T +41 (0)61 337 15 15 • F +41 (0)61 337 15 02 info@optiswiss.ch • www.osshop.com

be 4 ty+

ORGA 167

ORGA 174


be4ty+andShort_ EN