Posters

Standard vs accelerated corneal collagen cross-linking: comparing the two procedures for visual, refractive and topographic outcomes in paediatric keratoconus

Poster Details

First Author: I.Amer EGYPT

Co Author(s):    A. Abdou   A. Nooreldin   A. Alaskary              

Abstract Details

Purpose:

To compare the visual, refractive and topographic outcomes of standard and accelerated corneal collagen cross-linking (CXL) in pediatric keratoconus patients.

Setting:

Sixty-eight eyes of 35 pediatric keratoconus patients (<18 years) were included and classified into two groups, group (I) included 34 eyes received standard CXL (3 Mw/cm2, 30 min.) and group (II) included 34 eyes received accelerated CXL (9 mW/cm2, 10 min.).

Methods:

Uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), spherical equivalent (SE), simulated keratometry (Sim K-1, Sim K-2, K-max, K-mean), cylindrical (CYL), Pachymetry and Q-value were evaluated preoperative and within 3 years postoperative.

Results:

Postoperative UDVA and CDVA did not significantly change in both groups. Postoperative SE was significantly decreased in standard CXL compared to accelerated CXL (p<0.05). Standard CXL has a greater effect in decreasing Sim K-1, Sim K-2, K-max and K-mean. Also, the mean reduction in postoperative corneal pachymetry (at thinnest location) was higher in standard CXL (18.4) compared to accelerated CXL (5.4), (p=0.001). No significant change was noticed in postoperative Q-value. No complications were observed in both groups.

Conclusions:

In conclusion, standard and accelerated CXL are efficient in pediatric keratoconus management with better outcomes in standard procedure.

Financial Disclosure:

None