KERATOPLASTY VERSUS INTRASTROMAL SEGMENTS IN KERATOCONUS

1. KERATOPLASTY VERSUS INTRASTROMAL SEGMENTS IN KERATOCONUS HUMBERTO ESCORCE CURE CHIEF OF DEPARTMENT ANTERIOR SEGMENTINSTITUTO DE LA VISION - FUNDAVISIÓNBARRANQUILLA, COLOMBIA THE AUTHORS HAVE NO COMMERCIAL INTEREST, NOR RECEIVE BENEFIT FROM, THE MATERIALS AND/OR PROCEDURES MENTIONED BELOW.

2. PURPOSE • Describe the topographic and visual acuity changes in a patient with a history of Keratoconus which performed a penetrating, keratoplasty and lasik in the left eye versus a treated with implant of intracorneal segments in the right eye.

3. METHODS • Descriptive study, clinical case, which discussed the case of a patient with diagnosis of bilateral Keratoconus, in whose left eye it was first performed a penetrating keratoplasty and one year later a Lasik . In the right eye were implanted Ferrara intracorneal segments. Were taken as the study variables topographic values pre surgical and postsurgical at 3 mm, 5 mm and 7 mm, visual acuity pre surgery and post surgery without and with correction with a 3-year follow-up.

4. RIGTH LEFT

5. COMPARISON OF TOPOGRAPHIC VALUES OF KERATOPLASTY AND INTRACORNEAL SEGMENTS FIRST YEAR

6. COMPARISON OF TOPOGRAPHIC VALUES OF KERATOPLASTY AND INTRACORNEAL SEGMENTS AT 3 YEARS

8. LEFT EYE RIGHT EYE

9. PREOPERATIVE POSTSURGlCAL

10. PREOPERATIVE POSTSURGlCAL

11. RESULTS • The preoperative uncorrected visual acuity was 20/400 logMAR (1.30) for both eyes. The preoperative best corrected visual acuity was 20/70 logMAR(0.54) for the right eye, and 20/80 logMAR (0.60) for the left eye. In right eye after intracorneal segment, corrected and uncorrected visual acuity was 20/30 logMAR (0.18). The left eye visual acuity was 20/80 logMAR (0.60) with and without correction posterior to keratoplasty. The lasik eye surgery is performed later obtained a visual acuity 20/50 logMAR (0.40) without correction, and 20/20 logMAR (0.00) with correction. • Topographicalchangesthatoccurred, in the right eye in which were placed intracorneal segments was observed greater stability of the topography and a reduction in keratometric values after three years, compared with the left eye who underwent keratoplasty, which presented an increase keratometric values after 3 years

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