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	Keratokonus Lenses ROSE K 2

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Model Number

ROSE K2

ROSE K
NEW DESIGN KERATOCONUS LENSESmeasurements and average these.
Choose first lens 0.2mm steeper than average K readings from your Rose K2? trial set.
Fit central area by changing BOZR until very light apical touch can be discerned.
Assess peripheral fit. A fluorescein ring under the edge of 0.5mm to 0.7mm is optimal.
a If lift is excessive the lens will move too freely and have a band of fluorescein at the edge wider than 0.7mm. The tear miniscus between the cornea and the lens at the edge may break causing a small bubble.
b If lift is inadequate the fluorescein ring at the edge will be less than 0.5mm and a dark ring of touch will show, particularly near the edge of the lens. The lens will often be uncomfortable and may not move freely on blinking. In this case consider increased lift.
Location:
a If riding low, increase diameter.
b If riding high, decrease diameter.
Power:
Over refract initially using one dioptre steps and refine with 0.50 and 0.25 steps.