HUMBERTO ESCORCE CURECHIEF OF DEPARTMENT ANTERIOR SEGMENT
INSTITUTO DE LA VISION - FUNDAVISIÓNBARRANQUILLA, COLOMBIA
THE AUTHORS HAVE NO COMMERCIAL INTEREST, NOR RECEIVE BENEFIT FROM, THE MATERIALS
AND/OR PROCEDURES MENTIONED BELOW.
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.
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.
RIGTH LEFT
COMPARISON OF TOPOGRAPHIC VALUES OF KERATOPLASTY AND INTRACORNEAL SEGMENTS FIRST YEAR
COMPARISON OF TOPOGRAPHIC VALUES OF KERATOPLASTY AND INTRACORNEAL SEGMENTS AT 3 YEARS
RIGHT EYE
LEFT EYE
9
PREOPERATIVE POSTSURGlCAL
PREOPERATIVE POSTSURGlCAL
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.
Topographical changes that occurred, 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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3. Ferrara intracorneal ring implantation and cataract surgery for the correction of pellucid marginal corneal degeneration Leonardo Akaishi, Patrick F. Tzelikis, Irving M. RaberJournal of Cataract & Refractive Surgery - November 2004 (Vol. 30, Issue 11, Pages 2427-2430, DOI: 10.1016/j.jcrs.2004.04.047)
4. Long-term follow-up of intrastromal corneal ring segments in keratoconus Leonardo Torquetti, Rodrigo Fabri Berbel, Paulo FerraraJournal of Cataract & Refractive Surgery - October 2009 (Vol. 35, Issue 10, Pages 1768-1773, DOI: 10.1016/j.jcrs.2009.05.036)
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