PMC7113618_01
(A) Superior corneal protrusion without associated scarring or vascularization; (B) Two implanted Kerarings
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F1
Slit-lamp examination of the left eye revealed a superior corneal protrusion without associated scarring or vascularization (Figure 1A (Fig. 1)). The tunnel was opened using a blunt sinskey, then two Kerarings were implanted by the use of special ring forceps (Figure 1B (Fig. 1)).
(A) Corneal tomography showed a cone in the superior part of the cornea. . (B) Corneal tomography of the same eye after Kerarings implantation showed a marked decrease in the keratometry reading at the superior cone after 12 months.
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PMC7113618_01_OC-10-10-g-002.jpg
F2
The corneal tomography showed a cone in the superior part of the cornea with Kmax: 62.7 D at the steepest point of the cone with corresponding high anterior and posterior elevation (75 mum and 139 mum) (Figure 2A (Fig. 2)).