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Fig. 3 | BMC Ophthalmology

Fig. 3

From: Visual rehabilitation in moderate keratoconus: combined corneal wavefront-guided transepithelial photorefractive keratectomy and high-fluence accelerated corneal collagen cross-linking after intracorneal ring segment implantation

Fig. 3

Difference map in patient with moderate keratoconus who underwent combined corneal wavefront-guided transepithelial photorefractive keratectomy (tPRK) and high-fluence accelerated corneal collagen cross-linking (CXL) after intracorneal ring segment (ICRS) implantation. Although the majority of curvature changes occur by combined tPRK and CXL, ICRS implantation also serves to provide 20–30% additive effects. (a) axial map (difference), left; after ICRS implantation alone versus before ICRS implantation (baseline), right; 6 months after tPRK and CXL versus after ICRS implantation alone, (b) tangential map (difference), left; after ICRS implantation alone versus before ICRS implantation (baseline), right; 6 months after tPRK and CXL versus after ICRS implantation alone

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BMC Ophthalmology

ISSN: 1471-2415

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