Small-incision lenticule extraction in a patient with congenital nystagmus.

We report a case of a 23-year-old woman with congenital nystagmus who had small-incision lenticule extraction (SMILE) procedure to correct refractive errors. The manifest refraction was -5.50 -1.75 × 180 in the right eye, -5.0 -2.50 × 180 in the left eye, and the patient presented with horizontal pendular nystagmus with an amplitude range of 5 to 10 degrees. Uneventful simultaneous bilateral small-incision lenticule extraction was performed. Six months postoperatively, the uncorrected distance visual acuity was 20/18 with -0.25, -0.25 × 80 in the right eye, and 20/20 with +0.25 -0.5 × 50 in the left eye. The case suggests that small-incision lenticule extraction can be an effective alternative for correcting myopic astigmatism in patients with nystagmus.