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SPORTSLINE RX SPORT LENSES BASE 6 – 8

Top visual performance with full eye protection All lenses from the Optiswiss RX Sport Lenses range are tuned to the needs of various types of sports. They offer high seeing comfort, optimal performance as well as perfect security and protection.


Physiology The Optiswiss RX Sport Lenses range is in tune with the needs of various types of sports and ensures the best visual capacity. Balls, barriers, players or opponents are seen in time. In addition, lenses which are in tune with our individual visual performance guarantee safety and protection from external environmental influences, such as UV radiation, glare, draughts and external impacts and hits. Optiswiss guarantees high grade, customized lenses for sportive activities with the best quality from Swiss production.

Particles | Dust

Wind | Glare

UV radiation | External impacts and hits

Keep the right perspective A curved sports eyewear frame presents particular demands in the way the corrective lens curvature is calculated. In comparison to conventional prescription spectacles, the sports eyewear lenses are angled differently in front of the eyes. While conventional prescription spectacles have virtually coincident right and left ocular planes, in frames with strongly tilted lenses the planes are appreciably angled towards each other (typically by 15째 - 25째). Conventional correction spectacles

Spectacles with strongly tilted lenses

In accordance with centre of rotation requirement

Not in accordance with centre of rotation requirement

High horizontal inclination causes optical errors: this includes the oblique astigmatism, spherical errors, prismatic errors or also errors in centring.


Horizontal inclination of frames can cause optical errors The optical side effects appearing in the imaging beam path through the spectacle lens are best compensated through a special lens calculation. A spectacle wearer looking straight ahead into the distance perceives the same dioptric effect as during an eye examination. Furthermore, he/she benefits from an unlimited field of vision.

Oblique astigmatism Undesired astigmatism occurs as a side effect when gazing straight ahead into the distance (the main direction of sight) and is attributable to the oblique passage of light rays through the spectacle lens.

Twisted cylinder axis For prescriptions with astigmatism correction, the projection of the cylinder axis of the tilted lens must be viewed in the plane perpendicular to the main direction of sight (tabo-plane). With tilted angle prescriptions, this projection leads to a twisting of the cylinder axis. However, if the cylinder axes lie at exactly 0° or 90°, no twisting occurs.

Prismatic effects Prismatic distortion may be produced in the same way when looking straight ahead into the distance (main direction of sight), because the main ray is out of line with the optical axis of the spectacle lens.

Centring Tilting also affects how the lens is centred on the pupil axis. The vertex of the inner surface of the lens shifts nasally, while the point of reference of the outer surface shifts temporally.


Example of optimised lens calculation Example ORGA 150 (Single Vision)

Ø 70

Base 8

Starting values Prescription R L

+3.00 -3.00

Frame data Cyl. +2.00 Cyl. +2.00

PD

Axis Axis

120º 30º

R 33 / L 33

Tilt angle Width of frame shape Height of frame shape Bridge Frame type

Final values after calculation Dioptre values R +2.75 L -2.75

Cyl. +1.50 Cyl. +1.75

Centring data (new PD) Axis 130º Axis 34º

pr. 1.25 B.i. pr. 0.50 B.i.

R 35 / L 33.1

Angle determination The frame must be vertical to the pattern. • The bridge must lie parallel to the horizontal line. • The nasal frame groove must be brought into line with the vertex of the pattern. • The value must be read off on the temporal frame groove. •

Vertex

25º 56 mm 25 mm 18 mm Full rim


Order edged RX sport lenses through the osshop In our osshop you will find a continuously growing assortment of brand name frames from well known producers. Before these frames were integrated in our system, we have carried out numerous feasibility and plausibility checks. All suggested lens types can thus be ordered without hesitation. With the determination of the form, only the centering data like PD and height must be entered. The entry of additional parameters like form data, desired basis or optimized thickness is no longer necessary as everything is already stored in the system. If the order is completed, also here the lens value will be converted using the special sport lens calculation. After a few days, you will receive the already edged lenses.

High tech cutting machines for precision work Thanks to a highly modern, computer controlled production facility, it is possible for Optiswiss to glaze professionally sport frames with individual corrections. No matter if lenses with bevels, indentations or lenses to “clip on� in the frame. Save money and time. If you select the lenses for a frame model which we have stored in our system, we can send you lenses already cut which you only need to place in the frame.


Water sports UV protection and contrast increase In order to be able to optimally estimate weather conditions and to avoid undesirable reflections on the water surface, polarising lenses are recommended.

Visual requirements • UV- & glare protection • High light absorption • Increase of contrasts • Blue Blocker • Polarizing

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Recommended contrast & filter colors

Winter sports Good vision in high altitudes A suitable filter should be selected for high visual comfort so that peripheral vision is not impaired at high altitudes. A good UV filter is indispensable due to the radiation intensity in the mountains.

Visual requirements • UV- & glare protection • Blue Blocker • Depth of focus • Increase of contrasts • High light absorption

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Ball sports Motion perception and depth vision Ball sports such as golf, tennis, squash, volleyball or football promote fast reactions and foresighted action. Good spatial and peripheral vision are important for estimating movements and speeds.

Visual requirements • UV & glare protection • Break resistance • Polarizing • Contrast enhancement

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Outdoor No more running eyes For outdoor sports specific sports lenses offer ideal protection against airflow as well as UV protection. Contrast enhancing filters and spare lenses for various weather and light conditions are also recommended. Visual requirements • UV & glare protection • Shock and impact protection • Spare lenses for various light conditions • Polarizing • Contrast enhancement

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Optiswiss Sportsline spectacle lenses offer many advantages Many years of experience in the manufacture of sport lenses. The best conversion programme on the market. • Ultramodern, computer-controlled production plant. • Over 250 shapes of frames from well-known manufactures are deposited in the system. These can be ordered as rimmed. • The largest assortment of sport lenses. • •

Materials for Sportsline lenses Single Vision

Progressive

ORGA 150

ORGA 150 Transitions

ORGA 150 Polar

ORGA 150 Drivewear

ORGA 160

ORGA 167

TVX 153

TVX 153 Photo

TVX 153 Photo Polar

POLY 159

POLY 159 Sun

POLY 159 Polar

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


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