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Table 1 Intracorneal ring features

From: The use of intracorneal ring segments in keratoconus

Design

Intacs

Kerarings

Arc length (degrees)

150°

90°–210°

Cross section

Hexagonal

Triangular

Thickness (mm)

0.25–0.35

0.15–0.35

Inner diameter (mm)

6.77

5.00

Outer diameter (mm)

8.10

6.00

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Eye and Vision

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