Number 7 Comfort 15 Mini Scleral

Astigmatism

 

For unsuccessful soft toric fits, this lens will use the tears to neutralise corneal astigmatism
Keratoconus 
Pellucid Marginal Degeneration 
Post Graft 
Post Lasik 
Ecstasia 

Sports Wear &

Dusty Environment

Stability for great VA's; no dirt will get under the lens

Dry Eye

Mild to moderate corneal disease

No fluid can escape the reservoir eliminating corneal dry eye
MultifocalThe lens is always central for consistent VA
ComfortFor superior comfort than RGP's offer
  
  

 

Optimum Extra (Roflufocon D)

Blue or clear

Dk100

Diameter 15mm

SAG: 3400 to 5100 in 20 micron steps

+25.00 to -25.00 in 0.25 steps

Daily wear, annual replacement

 

Fitting Summary

  • Find the correct depth of lens
    • Determine the fitting lens that gives correct sagittal depth
  • Allow the lens to settle
    • Ideally the lens should be allowed to settle for 60 minutes
    • If there is bearing on the cornea, increase the depth of the lens before continuing
  • Assess the edge
    • If the edge of the lens appears tight, order the flat edge option
  • Over-refraction
    • Perform a spherical over refraction
    • Consider over-specs if there is residual cylinder
  • Assess limbal clearance
    • If there is not a clear band of clearance in the mid-periphery/limbus
      • then a small amount of reverse curve (2.5D in the first instance) is required to lift the lens off the area.
    • In addition, a reverse geometry lens can be ordered for oblate eyes.
  • Fine tune the sag
    • Sag may be increased or decreased in 20 micron steps to 100 microns
  • Order the lens
    • Order the lens stating the lens sag and power
    • State if any reverse curve is required
    • State is any changes to the edge is required

 

Detailed Fitting Guide

Containing 13 lenses, the fitting set has depths ranging from 3500µm to 5000µm in 125µm steps

The aim of the fit is to find the lens that exceeds the sagittal depth of the eye by around 100-150µm.

 

Choosing the right first trial lens cannot be done empitically and keratometry and topography do not give a good indication of sagittal depth.  However, the first trial lens can be chosen base on the eye condition to be fitted.

 

 

Insertion

Lenses must always be inserted full to the brim with saline.

Fluorescein must be added to the bowl of the lens prior to insertion as it will not get behind the lens after insertion.

The patient should be bent forward with  their nose pointing towards the floor and their chin tucked in.

The lens can either be supported on a tripod of three fingers or on a DMV inserter.

 

 

Assessing the Edges

  • The edges should be assessed after the lens has settled for 60 minutes
    • To do this, push the inferior sclera just below the edge of the lens
    • If the lens flares away very easily, it is flat
    • If it takes a significant push to see any flaring of the lens, the edge is too tight or the lens is too deep.
  • Also check for vessel impingement or scleral blanching.
    • If the ideal vaulting lens shows impingment or blanching then order with a flatter edge option
  • If the depth appears correct but the edge stands off, order with a steeper edge

 

 

 

Care Solutions

RGP solutions are too viscous.

Soft lens solutions such as Oté Sensation work well with daily cleaning using Oté Clean