Placido topography
Maps the anterior cornea for GP, ortho-k and keratoconus monitoring; some units include lens design modules.
Specialty contact lenses · Equipment
Specialty Lens Fitting Equipment The instruments behind GP, scleral and ortho-k fits.
Specialty fitting has moved from trial-and-error to measurement. Topographers, scleral profilometers, anterior segment OCT and lens design software cut chair time, reduce reorders and make complex fits repeatable.
350,000+Data points per Eaglet ESP scan, across 20 mm
360°Scleral shape coverage with sMap3D image stitching
22Lenses in the BostonSight Scleral fitting set
1–2 µmEyePrintPRO impression surface accuracy, as reported
What each tool does
Match the instrument to the fit
Corneal maps drive GP and ortho-k designs. Scleral fits need data beyond the limbus, which is where profilometry, OCT and impressions come in.
Scleral profilometry
sMap3D (Visionary Optics) and the Eaglet Eye Surface Profiler measure scleral shape to design the landing zone.
Anterior segment OCT
Shows central and limbal clearance and the edge profile of a scleral lens on the eye.
Impression-based lenses
EyePrintPRO from EyePrint Prosthetics builds a scleral lens from a mold of the ocular surface.
Design software
Programs such as EyeSpace import topography from the Medmont E300 or OCULUS Keratograph to design GP and scleral lenses.
Building the equipment stack
Most practices add tools in this order as specialty volume grows.
- Start with a topographer
- Add OCT or profilometry for sclerals
- Use the lab's software
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Diagnostic fitting sets
Scleral, GP and ortho-k sets from your lab partners remain the foundation of every fit.
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Topographer
Required for ortho-k and keratoconus. Combination units like the Topcon MYAH add axial length for myopia care.
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OCT or profilometer
Adds precision for scleral clearance and toric landing zones and reduces remakes.
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Insertion and care tools
Plungers, stands and preservative-free saline for patient training and dispensing.
Workflow
A measured scleral fit
Data first, then one diagnostic lens, then a custom order.
Capture
Map the cornea and sclera and confirm corneal diameter.
Over-refract
Apply a diagnostic lens, let it settle and over-refract.
Design and verify
Send maps and refraction to the lab, then check vault and edges on OCT at dispensing.
Tools at a glance
Specialty fitting technology
| sMap3D (Visionary Optics) | Stitches up-gaze, straight-gaze and down-gaze images into a scleral elevation map |
|---|---|
| Eye Surface Profiler (Eaglet Eye) | Fluorescein fringe-pattern profilometer; 350,000+ points over 20 mm; suggests custom sizes |
| Anterior segment OCT | Measures sagittal height, clearance and edge alignment |
| EyePrintPRO | Impression-based custom scleral lens |
| EyeSpace (Innovatus) | Scleral and GP design software; imports Medmont E300 and Keratograph data |
| BostonSight Scleral | 22-lens fitting set with web-based fitting and ordering |
| Topcon MYAH | Topography plus axial length, with an RGP and ortho-k fitting database |
| OCULUS Keratograph 5M | Placido topography with a contact lens fitting database |
Questions doctors ask
What should I buy first?
A corneal topographer. It supports ortho-k, keratoconus monitoring and GP design.
Do I need a profilometer for sclerals?
No, but it can shorten the path to a good landing zone, especially for toric or asymmetric sclera.
Is anterior segment OCT worth it?
It makes clearance and edge evaluation objective and helps explain fit issues to labs.
Can I bill for topography?
92025 describes corneal topography; coverage depends on payer and diagnosis. See the coding guide.
Where do I buy saline and insertion tools?
From the wholesale catalog, or send patients the items through RescueLink. Eligible OTC orders earn the 15% participation credit; contact lenses do not.
References
Equip the specialty lens service.
Measure once, design accurately and keep patients supplied between visits.
Product names are trademarks of their respective manufacturers. Specifications come from published descriptions and may change; confirm with each manufacturer.