KeratoGenius Ortho-K practitioner guide
Orthokeratology principles, a fitting flow chart, first-lens selection for spherical and toric Ortho-K lenses, worked fitting examples and common fitting challenges.
View the Ortho-K guide
Special & custom · made to the eye
Special & Custom Lenses
Every lens in this category is customised to the individual eye. KeratoGenius scleral and Ortho-K lenses, limbal and corneo-scleral designs, bandage, prosthetic, functional and paediatric lenses.
Every KeratoGenius lens is a customised product- KeratoGenius
- All custom
- Scleral fit zones
- 4
- Dk
- 141
19 products · 5 families
Made to the individual eye, from scleral and Ortho-K to bandage and prosthetic.
Customised lenses for complex eyes: KeratoGenius scleral and Ortho-K, limbal and corneo-scleral, bandage, prosthetic, functional and paediatric lenses.
Made in India by Silver Line Laboratories, a specialty division of Purecon. Every product below is an enquiry: tell us the parameters and we will advise.
- Custom lens solutionsSpecialised solutions for individual vision requirements.
- Precision manufacturingAdvanced technology and meticulous production processes.
- Dedicated support & serviceProduct guidance and assistance for eye care professionals and lens wearers.
KeratoGenius
The KeratoGenius family of customised scleral and Ortho-K lenses. Every KeratoGenius product is a customised product.
KeratoGeniusCustomisedScleralKeratoGenius McAsfeer* Custom Scleral Lens (KGMc)
Daily-wear clear and blue-handling-tinted customised 4-quadrant rigid toric haptic mini scleral lens with 10 points of customisation.
View details KeratoGeniusCustomisedScleralKeratoGenius McAsfeer* Advance Custom Scleral Lens (KGMc Advance)As KGMc, with a special surface treatment: a 4-quadrant rigid toric haptic mini scleral lens with 10 points of customisation.
View details KeratoGeniusCustomisedScleralKeratoGenius McAsfeer* Eight Custom Scleral Lens (KGMc 8)Customised 8-quadrant rigid toric haptic mini scleral lens with 24 points of customisation and a special surface treatment.
View details KeratoGeniusCustomisedOrtho-K · sphericalKeratoGenius Ortho K Lens (KGOK)Overnight-wear blue-and-green-handling-tinted customised spherical Ortho-K rigid corneal lens.
View details KeratoGeniusCustomisedOrtho-K · toricKeratoGenius Ortho K Toric (KGOK-TR)Overnight-wear customised toric-haptic Ortho-K rigid corneal lens.
View detailsLimbal & Corneo-Scleral Lenses
Customised rigid limbal and corneo-scleral lenses in Dk 141 material.
Limbal & Corneo-ScleralCustomisedLimbalLimbal Lens Dk-141
Daily-wear blue-and-green-handling-tinted customised rigid limbal lens.
Limbal & Corneo-ScleralCustomisedLimbal · toricLimbal Toric Lens Dk-141
Daily-wear blue-and-green-handling-tinted customised rigid limbal toric lens.
Limbal & Corneo-ScleralCustomisedCorneo-scleralCorneo Scleral Lens Dk-141 (CSL)
Daily-wear clear and blue-handling-tinted customised rigid corneo-scleral lens.
Pterygo & Bandage Lenses
Large-diameter high-water soft lenses used as ocular bandages.
PTERYGOCustomisedOcular bandagePterygo Therapeutic 21mm EW
Extended-wear high-water-content large-diameter clear-tinted yearly customised soft lens with opposite lens geometry, used as an ocular bandage.
Pterygo & BandageCustomisedOcular bandageScleral Bandage EW
Extended-wear high-water-content large-diameter (17 mm to 20 mm) clear-tinted yearly customised soft lens used as an ocular bandage.
Pterygo & BandageCustomisedSoft bandage lensTherapeutic Plus™
Soft bandage contact lens in 58% and 70% water-content materials, yearly, in diameters up to 20.00 mm.
Prosthetic & Functional Soft Lenses
Customised tinted and printed soft lenses for prosthetic, occlusion, colour-vision and photophobia needs.
Prosthetic & FunctionalCustomisedProstheticIris Prosthetic
Daily-wear iris-printed and tinted soft contact lens that matches the better eye with the disfigured eye; suggested for use in both eyes for better results.
Prosthetic & FunctionalCustomisedProstheticR2 Prosthetic
Daily-wear high-water-content tinted soft lens in ring form at the periphery, used on a micro cornea to increase the HVID.
Prosthetic & FunctionalCustomisedProstheticScleral Prosthetic
Large-diameter daily-wear high-water-content soft tinted lens for highly irregular ocular surfaces.
Prosthetic & FunctionalCustomisedCosmetic coverScleral Regeneration Lens
Large-diameter daily-wear high-water-content soft opaque lens to hide scleral pigmentation.
Prosthetic & FunctionalCustomisedVisual occlusionOccluder
Daily-wear back-opaque soft tinted contact lens used for visual occlusion.
Prosthetic & FunctionalCustomisedColour visionTricromat
Daily-wear soft tinted contact lens used to rectify colour vision, for contrast enhancement and sport sight.
Prosthetic & FunctionalCustomisedPhotophobiaPin Hole
Daily-wear high-water-content tinted, back-opaque soft contact lens with a central clear zone that acts as an artificial iris to reduce photophobia.
Paediatric Lenses
Customised high-water-content soft lenses for children.
PaediatricCustomisedPaediatricPaediatric Soft Lens EW
Extended-wear high-water-content clear or blue-tinted yearly customised soft lens for children, in back-aspheric paediatric geometries.
FAQ
Scleral and Ortho-K questions
From the approved FAQ. Your eye care practitioner will advise on your own eyes.
All questionsHow do scleral lenses work?
Most contact lenses sit on the corneal surface itself. Scleral lenses are larger and wider, resting on the sclera (the white part of the eye). The lens then vaults over the cornea, leaving a fluid-filled chamber between the lens and the surface of the eye. This design helps hydrate the eye and compensates for irregularities in the shape of the corneal surface.
Are scleral lenses comfortable?
Initially, there may be a sense of awareness with scleral lenses, or “knowing that the lens is there”. It can take some time to acclimate to this feeling, especially if you have never worn a contact lens before. In the long run most patients report that scleral lenses are more comfortable than other types of rigid lenses, to the point where they are hardly noticeable. The design of scleral lenses helps reduce corneal irritation and keeps the eye hydrated and healthy. They are also custom-designed to fit the unique shape of each individual eye, factors that provide for all-day comfort. While some specialty contact lenses are suitable to wear overnight, scleral lenses are not. It is advised to remove them before going to bed each night.
Can I take a shower with my scleral lenses on?
For scleral lenses only: yes, but try to avoid it if not necessary. Regular contact of water with your lenses may invite deposition on the lens surface and may affect lens performance.
What is Ortho-K and how does it work?
Orthokeratology (Ortho-K) uses specially designed rigid gas permeable lenses, usually worn during sleep, to temporarily reshape the front surface of the eye (the cornea). The lenses are removed after waking, allowing many patients to see more clearly during the day without glasses or daytime contact lenses.
Can Ortho-K slow my child's increasing spectacle power?
Studies show that Ortho-K can slow the growth of the eye (axial elongation), which contributes to myopia progression in many children. Results vary, and it cannot guarantee that myopia will stop. Treatment effectiveness must be monitored over time.
Resources
Technical Literature
Reference material from Silver Line Laboratories for eye care professionals.
Silver Line product literature
The Silver Line range in one brochure: soft, toric, cosmetic, rigid gas-permeable and speciality lenses, with parameters and lens geometry.
View the product literatureKeratoGenius scleral lens guide
KeratoGenius scleral lens design, fitting zones, McAsfeer* geometry, and fitting assessment with slit-lamp examples.
View the KeratoGenius scleral guideEnquire about special & custom lenses.
Keep exploring
Related products
Product categoryRigid Gas Permeable Lenses
Customised rigid gas-permeable corneal lenses for daily wear, with a Dk range of 28 to 141.
View Rigid (RGP) Product categorySoft LensesDaily, extended-wear, frequent-replacement and disposable hydrogel lenses, plus soft therapeutic and prosthetic lenses.
View Soft Lenses Lens careCare for these lensesFor scleral lenses: GP-Care and GPFresh Hydra, and Pro Saline Max for filling the lens before insertion.
See lens care