Posters

Advanced keratoconus with low refractive error

Poster Details

First Author: A.Mounir EGYPT

Co Author(s): E. Mostafa   M. Anber                 

Abstract Details

Purpose:

To report a case of bilateral keratoconus with low error due to short axial length globe who subjected to right simultaneous femtosecond intracorneal ring segments implantation with corneal collagen cross linking with refractive, visual and aberrometric improvement.

Setting:

Sohag Center for Femtolasik and Corneal Surgeries

Methods:

28-year-old female with right keratoconus grade 3 and left keratoconus grade 2 with low degree refraction (spherical equivalent in right eye = -2.25 and +0.75 D in left eye). Axial length measurement revealed short axial length (RE=19.63 mm, LE=19.97 mm). After counseling the patient, the decision was to go for right simultaneous femtosecond intracorneal ring segments implantation with corneal collagen crosslinking. UCVA, BCVA, sphere, cylinder, spherical equivalent, RMS total high order aberrations (HOA), RMS coma, and RMS astigmatism were measured pre- and postoperatively in the first week, 1 month, 3 month, 6 month.

Results:

The results were favorable as regards improvement in UCVA, BCVA, with mild hyperopic shift in the sphere as expected with decrease in the cylinder, and induced flattening. As for HOA, coma and astigmatism; there was marked decrease.

Conclusions:

Management of keratoconus with low error and short axial length globe shouldn't depend on refraction only but should take into consideration the grade of keratoconus, and aberrometric error. The main role of ICSRs in such cases is to effectively decrease HOA in these patients thus achieving better visual quality.

Financial Disclosure:

None