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Wide balanced visual fields with minimal interference |
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Endless use possibilities with just
one pair of glasses |
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Visual field for close distance free from traumas |
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Wide and comfortable
progressive corridor |
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Perfect vision from all distances |
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Quality of life to the usuary |
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Ergonomic and visual comfort |
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Balanced binocular vision |
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Preserved natural posture |
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Quick
adaptation |
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Presbyope |
Far-sighted persons present two kinds of needs:
EMOTIONAL AND RATIONAL.
| Emotional |
Rational |
| Personal perception of advantages such as: |
Physical and visual benefits such as: |
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General well being |
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Stress lowering |
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Younger look |
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Healthier look |
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the use of something more modern and efficient |
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Sensation of
enhancement of life quality |
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To see well from all
distances |
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Recovering of natural posture |
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Complete visual comfort |
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Using of just one pair of
glasses |
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Guide to a quicker and
faster adaptation
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First Step: Posture analysis.
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Second Step HISTORY TAKING.
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In the history taking try to find out adaptation influencing factors either of
emotional ,rational or pathological sources or any source which demands special measures.
In the
RATIONAL HISTORY TAKING we try to find out the presence of Nystagmus ( involuntary eye movement),
Strabismus, Hypertropia ( an upper eye deviation) , Anisophoria ( an vision angle deviation) , or
any neuro-atomic deviation. We also analyse the prescription checking anisometropia higher than
approximetly 2.00 diopters. All of them are considered influencing factors in the adaptation.
In the EMOTIONAL HISTORY TAKING we try to find out the disposition and motivation of the future usuary to the progressive lens adaptation. In some cases such an adaptation will require habit and posture flexibility.
In the PATHOLOGICAL HISTORY TAKING we try to find out possible
pathologies and the use of medicines which may influence the prescription and adaptation
results.In case of doubts get in touch with the responsible
ophthalmologist to make sure
everything is allright.
Special measures.
In the adaptation environment where the usuary activities can influence the good use of glasses, we assume the following below measures:
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Third
Step The ideal frame
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The ideal frame must be proportional to the face, the suitable size allow minimum height of
18mm, pantoscopic angle higher than 12º, distance to the vertex from which refraction was carried
out for a good distribution of visual fields.
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Angle and Distance
Pantoscopic angle 12
to 15mm. Distance of 12mm to the vertex
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Height/ D.N.P.
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Fourth Step. Adjusting of glasses
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The alignment of glasses, rims, scapi, tips and platelets
must be adjusted to the anatomic conditions of the usuary face.
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Make it sure that the frame is well fitted
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The height measurement is also monocular
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Place the patient in natural position looking into distant vision, mark the pupil
center on each lens with a visible ink pen. Be carefull to avoid the mistake of parallax
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Draw a horizontal line on each lens and make a double checking to assure that both cross with the
center of the pupil
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Measure the inferior rim height up to the center of the pupil
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A difference between the right and left heights occur in 20% of the cases
- The minimum mounting height is
20/22mm.
INDICATIONS AND POSSIBILITIES
Physical properties
- Semi- finished lens
- Organic resin
- Diameter 70mm
- Density 1,21g/cm3
- Negative (-), Positive (+)
- -3.00D to +6.00D
- Cylinder up to 3.00D
- Basis 4.00/5.50/7.50
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