RGP lenses

We supply a full range of RGP lenses including:

Spherical RGPs

Eureka™ Aspheric

The EurekaTM aspheric gas permeable contact lens is designed to align more closely with the cornea whilst maintaining the essential movement that is associated with a well fitting spherical lens.

Improved centration and movement result from the particular combination of elliptical back surface and progressive aspheric periphery. Constant axial edge clearance is an important design feature and is maintained throughout the parameter range.

This product is available with SAM® (Spherical Aberration Management) for enhanced aberration control at no additional charge. If required please specify 'SAM Optics' when ordering.

Geometry
Combined elliptical and progressive aspheric back surface.
Spherical front surface with lenticulation.

Axial edge lift- Constant for a given diamater and E-value
Initial eccentricity (E-value) - 0.45
Centre thickness- 0.15mm at -3.00 DS
Edge thickness - 0.14mm

Materials
PF30   PF45     Optimum Comfort     Optimum Extra

Parameter Range
Radii - 7.00 to 9.00mm in 0.05 steps
Powers - +30.00 to -30.00 DS in 0.25 steps
Diameters - 8.90 to 10.10mm in 0.30 steps

Trial Sets - 15 lenses in any standard diameter.
Radii - 7.10 to 8.50mm in 0.10 steps
Distance power - +3.00 or -3.00 DS
Diameters  Varies, 8.90 to 10.10mm

Indications
Spherical and astigmatic ametropia. Corneal astigmatism over 2.00 dioptres may require a toric lens to improve physical fit.

Topflex Sphere

The Topflex design features a specially blended multicurve back surface with constant axial edge lift providing optimum tear exchange. The front surface design keeps overall lens thickness to a minimum without compromising the stability or durability of the lens. Centre and edge thickness is computer controlled to achieve maximum stability and comfort.

This product is available with SAM® (Spherical Aberration Management) for enhanced aberration control at no additional charge. If required please specify 'SAM Optics' when ordering.

Fitting tip
When using a 9.50mm diameter, fit to flatest K. When using a smaller diameter lens fit 0.05mm steeper that flatest K.

Geometry
Spherical, thin tricurve lens with blending curves and large optic zone.

Constant axial edge lift - 0.10mm at 9.50mm diameter
Centre thickness - 0.14mm at -3.00 DS
Edge thickness - 0.14mm

Materials
PF30       PF45       Optimum Comfort     Optimum Extra

Parameter Range
Radii 7.00 to 9.00mm in 0.05 steps
Powers +30.00 to -30.00 DS in 0.25 steps
Diameters 8.50 to 10.00mm in 0.50 steps

Trial Sets - 12 lenses in any standard diameter.
Radii - 7.30 to 8.40mm in 0.10 steps
Power - +3.00 or -3.00 DS

Indications
Spherical and astigmatic ametropia. Corneal astigmatism over 2.00 dioptres may require a toric lens to improve physical fit.

Xtralens™

The XtralensTM is designed primarily for refitting soft lens wearers with RGP lenses. The large diameter and polynomial back surface together with a novel front surface design, all combine to give initial comfort approaching that of soft lenses and in most cases patients will successfully complete the changeover within a few days. A unique system of differential edge types is used to aid lens movement and positioning with the aim of maximising tear exchange.

An addtional advantage of this design is its tendency to overcome three and nine o'clock staining. It is important note that this lens is generally fitted 0.10mm steeper than flattest K, or 0.15mm flatter than mean K, whichever is the steeper, as the position of the lens on the eye is controlled by the front design. The XtralensTM also provides an extremely good frame for a bifocal and trifocal optical portion.

SAM® technology is used on all XtralensTM making this lens the ultimate design in RGP lens on the market today.

Geometry
Polynomial back surface with ski-bevel, Interpolated multicurve front surface.

Axial edge lift- 0.24mm at diameter 10.80mm
Centre thickness- 0.24mm at -3.00 DS
Edge thickness - 0.15mm

Parameter Range
Radii - 7.00mm to 9.00mm in 0.05 steps
Powers - +30.00 DS to -30.00 DS in 0.25 steps
Diameters - 9.00mm to 12.00mm in 0.30 steps

Indications
Spherical and astigmatic ametropia. Three and nine o'clock staining. Corneal astigmatism over 2.00 dioptres may require a toric lens to improve the physical fit.

Plasma-GP

Plasma-GP lenses benefit from a specialist treatment during which high frequency waves are used to 'excite' oxygen, producing a plasma gas. This in turn changes the material matrix, at surface level only, allowing the lens to become more hydrophilic.

Material -  Optimum Extra

Parameter Range
Base Curve 6.50mm to 10.00mm (0.05 steps)
Diameter 8.00mm to 12.00mm (0.10mm steps)

Lens Design Eureka
Power Range -30.00DS to +30.00DS (0.25 steps)
Cyl -0.50DC to -6.00DC (0.25 steps)
Axis 1° to 180° (1° steps)
Add Up to +4.50DS (0.25 steps)
Wear Modality Replacement 6 or 12 Monthly, for daily wear only
Pack Size Single vial

Eureka Aspheric Front Surface Toric

The standard Topflex design incorporating a toroidal concave surface and a toroidal convex surface. Axial edge lift is kept constant along the flat meridian. Empirical fitting is recommended. Tricurve toroidal back surface with blending curves and a large optic zone. Toroidal front surface. Prisms are available to aid stabilisation.

Geometry
Axial edge lift Constant 0.09mm
Initial eccentricity 0.45
Centre thickness 0.15mm at -3.00 DS
Edge thickness 0.14mm

Materials
PF45    Optimum Comfort    Optimum Extra

Parameter Range
Radii 7.00 to 9.00mm in 0.05 st
Toricity Up to 1.00mm
Powers +30.00 to -30.00 DS in 0.25 steps
Cyl -0.50 to -6.00DC
Axis 0° to 180° in 1° steps
Diameter 8.50 to 10.10mm in 0.30 steps

Topflex Bitoric

The standard Topflex design incorporating a toroidal concave surface and a toroidal convex surface. Axial edge lift is kept constant along the flat meridian. Empirical fitting is recommended.

Tricurve toroidal back surface with blending curves and a large optic zone. Toroidal front surface. Prisms are available to aid stabilisation

Constant axial edge lift - 0.10mm along the flat meridian at the overall diameter

Centre thickness - 0.14mm at -3.00 DS

Edge thickness - 0.14mm

Parameter Range
Radii along flat meridian - 7.00 to 9.00mm in 0.05 steps
Toricity - Up to 1.00mm
Powers on flat meridian - +30.00 to -30.00 DS in 0.25 steps
Front cylinder powers - -0.50 to -6.00 DC in 0.25 steps
Cylinder axis - 0 to 180 deg
Diameters - 8.50 to 10.00mm in 0.50 steps

Materials
PF45    Optimum Comfort     Optimum Extra

Indications - Total astigmatic ametropia

Toplex Back Toric

The standard Topflex design incorporating a full toroidal concave surface. Axial edge lift is kept constant along the flat meridian.

Geometry
Tricurve toroidal back surface with blending curves and a large optic zone.
Constant axial edge lift 0.10mm along the flat meridian at the overall diameter
Centre thickness 0.14mm at -3.00 DS
Edge thickness 0.14mm

Parameter Range
Radii along flat meridian 7.00 to 9.00mm in 0.05 steps
Toricity Up to 1.00mm
Powers on flat meridian +30.00 to -30.00 DS in 0.25 steps
Diameters 8.50 to 10.00mm in 0.50 steps

Indications
Total astigmatic ametropia where the contact lens induced cylinder may be used to correct some or all of the residual astigmatism.

Topflex Front Toric

The standard Topflex design incorporating a toroidal convex surface with prism ballast for stabilisation. Slab off curves are introduced on the front surface to maintain even edge thickness.

Geometry
Spherical tricurve back surface with blending curves and a large optic zone. Toroidal front surface prism ballasted with slab off.

Constant axial edge lift - 0.10mm

Centre thickness - 0.24mm at -3.00 DS

Edge thickness - 0.14mm

Parameter Range
Radii 7.00 to 9.00mm in 0.05 steps
Sphere powers +30.00 to -30.00 DS in 0.25 steps
Cylinder powers -0.50 to -3.00 DC in 0.25 steps
Cylinder axis 0 to 180 deg
Diameters 8.50 to 10.00mm in 0.50 steps

Indications - Lenticular Astigmatism

Topflex Compensated Toric

The standard Topflex design in parallel bi-toric form. The plus cylinder on the front surface corrects the contact lens induced astigmatism present at the contact lens / fluid lens interface. Axial edge lift is kept constant along the flat meridian.

Geometry
Tricurve toroidal back surface with blending curves and a large optic zone. Toroidal front surface with plus cylinder axis along the back flat meridian.

Constant axial edge lift - 0.10mm along the flat meridian at the overall diameter

Centre thickness - 0.14mm at -3.00 DS

Edge thickness - 0.14mm

Parameter Range
Radii along flat meridian 7.00 to 9.00mm in 0.05 steps
Toricity Up to 1.00mm
Powers on flat meridian +30.00 to -30.00 DS in 0.25 steps
Compensating cylinder Dependent on back toricity
Diameters 8.50 to 10.00mm in 0.50 steps

Indications - Corneal astigmatism

For prices and delivery times contact us on 868-303-3485 or email info@totallensproducts.com