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Congratulations. The physician has prescribed his/her patient one of the most modern lenses of this current time. The Sapphire Progressive Lens have been developed to
supply the maximum visual comfort and life quality to its
usuaries.
With Sapphire Progressive Lens the physician will be sure of prescribing one of the lenses of high quality with complete guarantee.
In this manual the physician can get to know how to adjust the Sapphire Progressive Lens better to the patients’ needs.
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In face of their Optical and Physical advanced properties, the modern design and innovative industrialization process,
Sapphire Progressive Lens are indicated to several range of needs including protection.
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The resine refraction index, the transmissibility high rate , higher number Abbe(Nu), low specific weight ,besides ULTRA-VIOLET ray protection (up to 380nm) will benefit their usuaries.
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We offer full original
Sapphire Progressive Lens guarantee which can be easily added through our client attendance service by telephone or internet. You can find specialized technicians all over Brazil who are able to provide complete technical assistance to our products.
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Important
- General Information
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Sapphire Progressive Lens are able to reach its aim and
mantain its effectiveness within some specific parameters. Duration and performance of
effectiveness have been tested and approved in the Segment System laboratories and by over 7
well known countries abroad.These parameters must be taken into account as reference by the
ophthalmologic professionals aiming better specific results to each patient.
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Main parameters which can affect adaptation
| Physiopathological |
Factores externos |
Pathologies, Use
of medicines, Patient motivation, Irritated persons,Anisometropia above +/-2.00, Senility,
Neuro-atomic deficiency, Various syndromes. |
External factors, Physical Posture, Environment of
adaptation and use, Habit flexibility of Lens , Frame choice, Acute measurements, Suitable
adjustment.. |
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Frame Choice, DNP and Average Pupil Height.
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The glasses frame , indicated by the
optician, should have the suitable size allowing better distribution of visual fields.
The lens centering should have the minimum of 18mm between the inferior edging and the centering
cross. Average measurements in relation to the usuaries who do not present unsuitable postures
and any characteristic or specific needs.
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Pupil height measures in
relation to head positioning |
High positioning:
Height of the
center for usuaries with upright head or tall size. Priority to the visual field for far
distance
Low positioning:
Height of the center for usuaries with lowered head or short size.
Priority to the visual field for closer or medium distances
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DNP measurements in relation
to convergence lack or excess |
Higher convergence than normal:
In case of convergence excess centering should be done through DNP to close distance added by
2,5mm
Convergence lack
for usuaries without convergence, centering should be done through DNP
for close distance.
| Physical Properties |
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Resin
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Lens
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Densidad
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Basis |
| Organic |
Semi-Finished |
Density, 1,21g/cm3 |
4.00 |
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70m/m Diameter |
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5.50 |
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7.50 |
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| Optical Properties |
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UV Protection. 380nm
Transmissibility : 92%
Abbe: 58
index nd.=1.499
nd=1.530
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