Surprising astigmatism hypercorrection after corneal ring segments implantation in keratoconus treatment after 8 years of follow up.

To report a case of hypercorrection of astigmatism (Cyl) after implantation of 2 segments of short arch ring for keratoconus treatment and to describe its replacement by long arch segment. This is a case report of a patient with keratoconus and no adaptation to glasses or contact lenses, who was implanted 2 ring segments: upper nasal (155º/ 200μm) and inferior temporal (155º/ 250μm). First postoperative month: CVA = 20/ 50 (-10.

Sclerokeratoplasty for the early management of acquired anterior staphyloma.

To report a case of acquired anterior staphyloma after trauma and its first surgical management. This is a case report of a 17-year-old man who had a history of trauma by insect on the right eye, without a previous history of eye conditions, and evolved with local pain and low visual acuity. The ophthalmological exam showed light perception visual acuity in right eye and 1,0 in left eye, anterior staphyloma and impossibility to blink.