Transcript Volk Optical Distributor Training Course

Volk Optical Laser Lenses
Distributor Product
Presentation
December, 2009
Overview
• Volk Optical has introduced two new high resolution (HR) lenses for
laser photocoagulation
– The HR Wide Field for Pan Retinal Photocoagulation (PRP)
– The HR Centralis for focal and grid laser therapy
• Both lenses feature double aspheric designs and high grade, low
dispersion glass which gives superior imaging quality.
• Both lenses may also be used as diagnostic lenses only.
• The lenses improve upon and replace the previous generation
Superquad 160 and Area Centralis lenses.
• Primary conditions diagnosed and treated are diabetic retinopathy
and maculopathy.
• Lenses can also be used to diagnose and treat other conditions
such as retinal tears, breaks and holes.
HR Centralis Lens
• Lens for detailed posterior pole examination and laser
focal/grid treatment
• Lens is an upgrade or replacement for:
– Volk Optical Area Centralis
– Ocular Mainster 1X Retina
– Ocular Mainster Focal/Grid
• Main sales argument is better image quality and
stereopsis at the extreme of the lens view
• Specifications: FOV 74º, magnification 1.08x, laser spot
0.92x
• Link to lens page on Volk Optical website
Features and Benefits
• Enhanced double aspheric
design eliminates distortion and
improves stereopsis to the
periphery of the view
• Superior, high grade, low
dispersion glass delivers
unsurpassed resolution
• Improved capability with pupils
as small as 4mm
• Reduced sized housing helps
manipulation within the orbit
HR Wide Field Lens
• Lens for extreme wide field examination and
laser PRP treatment
• Lens is an upgrade or replacement for:
– Rodenstock pan fundus lens
– Volk Optical Superquad 160
– Ocular Instruments Mainster PRP 165
• Main sales argument is better image quality at
the extreme periphery of the lens view
• Specifications: FOV 160º, magnification 0.5x,
laser spot 2.0x
• Link to lens page on Volk Optical website
Features and Benefits
• Widest field of view and
treatment area to the ora
serrata
• Superior, high grade, low
dispersion glass design
eliminates distortion at the
extreme periphery
• Much smaller and easier to
manipulate within patient’s orbit
• Short length of lens helps
manipulate in front of laser
Diabetes Overview
• Diabetic retinopathy serious complication of
diabetes mellitus
• Commonest cause of blindness in 20-74 age
range
• Two stage progression with recognised
opthalmoscopically visible signs:
– Background Diabetic Retinopathy
• Microaneurysms
– Proliferative Diabetic Retinopathy
• Retinal haemorrhages, cotton wool spots
• Diabetic maculopathy is involvement of macula
Diabetic Retinopathy
• Early stage
background diabetic
retinopathy
– Hemorrhages and
‘cotton wool’ spots
• Proliferative diabetic
retinopathy
– Neovascularisation
with weak ateries
which bleed into
vitreous - ’floaters’
Laser Therapy 1
Pan Retinal Photocoagulation (PRP)
• Objective is to destroy oxygendeprived tissue and prevent
neovacularisation
• Lenses used are:
– HR Wide Field
– Superquad 160
Focal/grid therapy
• Photocoagulation near macula
• Lenses used are:
– HR Centralis
– Area Centralis
Laser therapy 2
Lens summary
• Diagnostic
– Digital Wide Field
• Slit lamp diagnostic retinal
screening even through
non-dilated pupil
– Digital High Mag
• Slit lamp examination of
nerve fibre layer, macula
and optic disk
– Digital 1.0x
• Optic disc measurement
and photographic
recording
• Treatment
– H-R Wide Field
• Panretinal
Photocoagulation (PRP)
for diabetic retinopathy
• Retinal breaks and tears
– HR Centralis
• Focal/Grid Laser for
diabetic macula oedema,
microaneurysms and
haemorrhage
• Macular hole