A 30-year-old man complained of bilateral defective vision due
to bilateral refractive error. The uncorrected distance visual
acuity (UDVA) in the right eye was 0.06, with corrected distance
visual acuity (CDVA) to 1.00 by a refraction of 2.50 × 2.75 ×
15, whereas the UDVA in the left eye was 0.05, with CDVA to
0.80 by a refraction of 4.75 × 2.50 × 64. Corneal tomography
was performed for both eyes and showed normal corneal
tomography with symmetrical bowtie, but the thinnest pachymetry
was extremely low. Corneal tomography examination
together with Scheimpflug-based tomography was performed
after 1 year and the results were the same. Evaluation of corneal
biomechanical properties was performed using corneal visualization
Scheimpflug technology. It showed suspicious results,
which were mainly explained by this extremely low corneal
pachymetry