Four Years Follow Up of Stable Ultrathin Non Ectatic Cornea: A Case Report

In this report, we presented a 33-year-old male patient complained of decrease vision of botheyes due to bilateral refractive error. The uncorrected visual acuity (UCVA) in the right eye was0.06 with best corrected visual acuity (BCVA) to 1 (in decimal) by a refraction of -2.50Ds -2.75Dcx15, while the UCVA in the left eye was 0.05 with best corrected visual acuity (BCVA) to 0.8 bya refraction of -4.75 Ds -2.50Dc x64. Corneal tomographic analysis was done for both eyes byOrbscan and showed normal corneal tomography with symmetrical bowtie but the thinnest pachymetry was very low. Both Orbscan examination and Scheimpflug based Oculus tomographywere performed as a follow up for 4 years duration and the results show stable parameters.Evaluation of corneal biomechanical properties was done after one year using corneal visualization Scheimpflug technology (CST) with suspicious results which mainly explained by thisextremely low corneal pachymetry with the same stable results after 3 years duration of follow up.