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The
Z-View™ Aberrometer
is the first wavefront
aberrometer specifically
designed to meet the needs
of the dispensing Eye Care
Practitioner.
Utilizing a proprietary, non
Hartmann-Shack technology
(patents pending) the
Z-View™ Aberrometer quickly
and accurately measures high
order aberrations
(3rd-6th order), as well as
sphere, cylinder and axis to
arrive at a fully optimized
prescription in less than a
minute. This compact,
flexible instrument performs
like a high-end surgical
aberrometer, but at a
fraction of the cost.* Your
patients will receive a
highly customized wavefront
guided prescription, and you
will have more quality time
to spend with them.
The small footprint fits
easily into the dispensing
practice, and provides
objective wavefront
measurements via
through-the-lens optics,
virtually eliminating
instrument myopia.
The Z-View™ Aberrometer is
based on the theory of
wavefront measurements.
If the cornea and lens of a
patient's eye were perfect,
a matching set of plane
waves entering the eye world
focus onto a very small spot
on the retina.
However, in actual human
eyes the waves are distorted
causing a slight blur
on the retina. Although this
is sub-optimal, it is 20/20
vision. Conversely, in
the perfect eye, light from
a single point on the retina
would form a perfect set
of plane waves leaving the
eye. The Ophthonix Z-View™
Aberrometer measures
the shape of these waves
with a proprietary wavefront
sensor.
The deviations of these
waves from perfect are then
analyzed with Ophthonix's
proprietary computer
algorithms and converted
into the patient's
prescription.
Features:
. Advanced, contemporary design
. Binocular, through-the-lens
. Internal target for near vision testing
. Real world external target for far distance vision testing
. Ethernet capable, easy interface
. Wide dynamic range
. -12.0 D to +8.0 D sphere
. Meets needs of 98% of the population
. Pupil diameter measurement
. Pupilary distance measurement
. Automatic pupil capture
. High accuracy
. R2 of 0.988 vs. manifest refraction from -11.0 D to +5.0 D
. Highly repeatable
. Resolution: >11,300 points over 6 mm pupil
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AUTO REF-KERATOMETER
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Reflection
sight/Measurement of
cornea curvature
PRK-5000 provides an
extensive dioptric
measurement range
(-25D to +22D), and
the radius of
curvature for
keratometry
is 5.0mm to 10.2mm.
Easy alignment and
friendly operation
allows you to
measure the
refraction and
keratometry in
sequence, and the
results can be
validated
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CLBS (Contact
Lens Base Curve)
Base curve
(posterior curve) of
hard contact lens
can be measured
using contact lend
holders on the back
of the
model eye,You can
inspect the lens,
and distinguish
between the right
and left lenses.
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Diameter
Measurement
Using the PRK-5000's
Freeze Function, you
can measure the
diameter of the
cornea, pupil or
hard contact lenses
worn by
an examinee. Since
the image of the eye
is frozen, the
process is simple
and precise.
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Automatic PD
Measurement
The Pupil distance
is automatically
measured and
displayed after
refraction
measurement of both
eyes is performed.
Automatic Power
Saving
When the PRK-5000 is
not in use more than
5 minutes, a
built-in power
saving function
eliminates current
to the TV monitor
and lighting
circuitry. It
conserves energy and
prevents the
build-up of heat
from electronic
circuitry, extending
instrument life.
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Color Photo
Target
This color photo
target with wide
angle of view allows
the examinee to be
more relaxed, making
eye fixation easy.
The auto-fogging
function reduces the
effects of
instrument myopia
and patient
accommodation,
especially helpful
with children and
patients with
difficult eyes.
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Direct results
indication
Through the monitor,
you can see the
results (maximum of
10 data for each
eye) of measurements
stored in memory.
Data may be printed.
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Ophthalmometer
Ophthalmometer OM 900
The Haag-Streit OM 900
Ophthalmometer uses a
classical
distance-independent
measuring principle which
meets the three requirements
of Helmholtz:
1. The size of the mire image is independent of the
distance between the
Ophthalmometer and the measured
object.
2. The resulting measurements are independent of the
distance between the
Ophthalmometer and the measured
object.
3. The measurements are independent of the quality of
focusing and are not
negatively affected by the
accommodation of the user.
The OM 900 meets the latest
IEC 601-1 norms that two
different test patterns –
Javal or Cross mark – can be
used, switching from one to
the other easily with
just the touch of a lever
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Topographer
Corneal Topographer
Advanced Corneal Topography
System with integrated
Keratometer
provides keratometric and
topographic measurements in
one device.
• Self-calibrating
• Precision that matches the accuracy of Keratometry
• Compact design fits to most refraction units
• Works with standard PC hardware
• Reproducible results
Features
• Integrated contact lens fitting program
• Ring illumination with unlimited lifetime
• Measurements up to the corneal vertex
• Low level of patient glare
• Placido system with 22 rings in a hemisphere
• 22,000 measuring points for maximum resolution
• Comprehensive, moveable 3-dimensional analysis
• All rings are easily detected even with complex corneal
surfaces
(Keratoconus, Keratoplasty).
• No contact possible with patient's face due the 80mm
working distance
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Autolensmeter
A lensmeter is an
opthalmic instrument. It is
used by optometrists or
opticians
for marking with an ink of a
plano or prescription lens
in preparation for blocking,
edging (cutting into shape)
and finishing. The finished
lens is then set into the
appropriate eyeglass frame.
The parameters used by a
lensmeter is derived from
the prescription written by
an ophthalmologist or
optometrist. The parameters
are sphere, axis, cylinder
and prism. The most common
prescriptions are written
as: sphere ± cylinder ×
axis.
The selection of the lens is
dependent on the OD (right
eye) and OS (left eye)
prescriptions. The lensmeter
is capable of marking
different types of lens
materials from glass to
several kinds of plastics as
well as coated and uncoated
and color shifting lens
materials. Lensmeters are
also used to mark single,
bifocal, trifocal and
progressive types of lenses.
Detailed Product
Description
Features:
1) Dimensions:
a) Length: 660mm
b) Width: 620mm
c) Height: 430mm (visor
closed), 520mm (visor open)
2)
Weight: 78kg
3) Power
supply: 220V/50Hz, 110/60Hz
4) Power
consumption: 1,000W
5) Max.
water pressure: 7 bars
6) Max.
pump pressure: 7 bars
7) Pump
section outlet:
a) Supply voltage:
110V/220V
b) Power available: 350W
8)
Function parameters:
a) Min. grinding
diameter: 20mm
b) Max. grinding
diameter: 80mm
c) Min. grinding height
for inclined plane: 19.5mm
d) Min. polishing height
for plane: 17.5mm
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slit lamp
Slit lamp examination of
the eyes in an ophthalmology
clinic
Cataract in Human Eye-
Magnified view seen on
examination with a slit lamp
The slit lamp is an
instrument consisting of a
high-intensity light source
that can
be focused to shine as a
slit. It is used in
conjunction with a
microscope.
The lamp facilitates an
examination which looks at
anterior segment, or frontal
structures, of the human
eye, which includes the
eyelid, sclera, conjunctiva,
iris, natural crystalline
lens, and cornea. The
binocular slit-lamp
examination provides
stereoscopic magnified view
of the eye structures in
striking detail, enabling
exact anatomical diagnoses
to be made for a variety of
eye conditions.
Combined with special lenses
like Goldmann 3-mirror lens,
Gonioscopy
single-mirror/ Zeiss
4-mirror lens for angle
structures and +90D lens,
+78D lens, +66D lens & Hruby
(-56D) lens, the examination
of retinal structures is
accomplished in detail.
While a patient is seated in
the examination chair, he
rests his chin and forehead
on a support to steady the
head. Using the
biomicroscope, the
optometrist then proceeds to
examine the patient's eye. A
fine strip of paper, stained
with fluorescein, an
orange-colored dye, may be
touched to the side of the
eye;
this stains the tear film on
the surface of the eye to
aid examination. The dye is
naturally rinsed out of the
eye by tears.
The subsequent test may
involve placing drops in the
eye in order to dilate
the pupils. The drops take
about 15 to 20 minutes to
work, after which the
examination is repeated,
allowing the back of the eye
to be examined. Patients
will experience some light
sensitivity for a few hours
after this exam, and the
dilating drops may also
cause increased pressure in
the eye, leading to nausea
and pain; although this is
very rare, patients
experiencing these symptoms
are advised to immediately
seek medical attention.
Adults need no special
preparation for the test,
however children may need
some preparation, depending
on age, interests, previous
experiences, and level of
trust.
The slit lamp exam may
detect many diseases of the
eye, including:
• Cataract
• Corneal injury
• Fuchs' dystrophy
• Keratoconus
• Macular degeneration
• Presbyopia
• Retinal detachment
• Retinal vessel occlusion
• Retinitis pigmentosa
• Sjogren syndrome
• Uveitis
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