case_images: PMC10651333_01
case_images: Slit-lamp photograph obtained 30 years after epikeratophakia. (a) Right eye (operated). (b), Left eye (nonoperated). The right eye shows an epikeratophakia graft (central area transparent), and the left eye has a central protrusion; opacity is observed after acute hydrops. (c), Right eye. (d), Left eye. Anterior-segment optical coherence tomography (AS-OCT) findings 30 years after epikeratophakia. The left eye is remarkably protruded compared with the right eye.
case_images: CRIOPM2023-9919057.001.jpg
case_images: PMC10651333_01_CRIOPM2023-9919057.001.jpg
case_images: fig1
case_images: Although acute hydrops resolved spontaneously, the keratoconus had progressed in the left eye (Figures 1(a) and 1(b)). The central and smallest corneal thicknesses in the right eye were 653 and 534 mum, respectively, while those in the left eye were 381 and 279 mum, respectively (Figures 1(c) and 1(d)).
case_images: Average keratometry (AvgK) and maximum keratometry (Kmax) changes on AS-OCT 20-30 years after epikeratophakia.   AvgK (right);   AvgK (left);   Kmax (right);   Kmax (left). Progression has stopped in the right eye (operated) but continued in the left eye (nonoperated).
case_images: CRIOPM2023-9919057.002.jpg
case_images: PMC10651333_01_CRIOPM2023-9919057.002.jpg
case_images: fig2
case_images: The changes in AvgK and Kmax from 20 to 30 years after the surgery were +0.5 and -0.3 D in the right eye, respectively, and +4.9 and 29.7 D in the left eye, respectively (Figure 2).