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Corneal remodeling: a femtosecond laser-assisted technique to treat corneal ectasia: 6 year follow up

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First Author: C.Carriazo Escaf COLOMBIA

Co Author(s):    M. Cosentino                    

Abstract Details

Purpose:

To analyze 6-year- outcomes of a femtosecond-assisted -technique to treat corneal ectasia.

Setting:

Clinica Carriazo, Universidad del Norte, Barranquilla, Colombia Instituto de la Vision, Universidad de Buenos Aires, Buenos Aires, Argentina

Methods:

One hundred and thirty-one cases which underwent Corneal Remodeling were analyzed. Regarding the procedure, anesthetic drops were instilled. A platform designed for femtosecond laser was used to perform the ablation: an 8 mm diameter-270 degree or 360 degree- keratectomy. Once ablation was completed, the edges of the resection were sutured with interrupted stitches.

Results:

The age of the population was 36.28 ± 15.19 years-old. Regarding postoperative 6-year-Uncorrected Distance Visual Acuity (UDVA) 0.47 ± 0.28 was obtained, sphere change changed from -3.69 ± 3.51 to -0.21 ±2.21 and 100% of the cases changed preoperative Against-the-Rule or Oblique Astigmatism and presented postoperative With-the-Rule Astigmatism. Corrected Distance Visual Acuity (CDVA) came from 026 ± 0.14 to 0.81 ±0.16. After performing PRK procedure in 40 cases they achieved UDVA 20/30 or better. All of the cases gained at least 1 line of CDVA; 45% of the cases gained 4 to 6 lines of CDVA. Regarding preoperative Coma Aberration, postoperative value decreased up to 80%.

Conclusions:

Corneal Remodeling is a safe technique which produces corneal flattening, reduction of anterior chamber depth and decrease of optical aberrations. Also, it offers a possibility to perform refractive complementary procedures on a new corneal profile.

Financial Disclosure:

... receives non-monetary benefits from a company producing, developing or supplying the product or procedure presented