Freeform designs for a precise fit
A lens shaped for every direction of your cornea.
Corneas aren’t perfectly round
Part 02 · 01- 01
Every cornea is a little toric
Its curve and height differ from one direction to another, often more than a glasses prescription suggests.
- 02
Symmetrical lenses assume it isn’t
The same curve all the way round fits one direction but leaves a gap or a pressure point in another.
- 03
A poor landing shows up in vision
The lens can drift off-centre, giving uneven correction, glare and unwanted astigmatism.
How a freeform lens is designed
Part 02 · 02Map
Corneal topography measures the shape and height across your whole cornea.
Design
Each zone and direction of the lens is shaped separately from that map.
Fit
The landing zone meets the cornea evenly in every direction.
Confirm
Topography after wear checks centring and the treatment zone.
What a precise fit gives you
Part 02 · 03Better centring
An evenly supported lens settles in the middle of the cornea night after night.
More predictable correction
A centred treatment zone gives clearer, more consistent daytime vision.
Room for astigmatism
Corneal astigmatism that would unsettle a standard lens can be built into the design.
In summary
Part 02- 01Most corneas differ in shape from one direction to another.
- 02Freeform lenses are designed from your corneal map, direction by direction.
- 03A precise landing means better centring and steadier vision.
Book an ortho-K assessment.
We map your cornea first, then design the lens around it.
General information only, not personal advice. Suitability for ortho-K is decided after a full eye examination and corneal mapping.