LASIK in myopic patients with congenital nystagmus

Purpose: To present the results of IntraLASIK treatment in myopic patients with nystagmus. Methods: Four patients, ranging in age from 25 to 49 years, with congenital nystagmus (8 eyes), underwent IntraLASIK surgery. Corneal flaps were made by lntralase femtosecond laser. In some patients, the eyes were fixated with forceps or a fixation ring during the laser ablation. In all patients, the effect of involuntary eye movements was neutralized by an active tracking system. Results: The refractive errors were corrected in all cases. There was no decentration or loss of best corrected visual acuity by more than 1 line. In 3 of 8 eyes, the post-operative uncorrected visual acuity (UCVA) was equal or better than the best spectacles corrected visual acuity (BSCVA) preoperatively. Four of the 8 eyes retained or improved their BSCVA. Conclusions: Some patients with myopia and nystagmus may benefit from laser refractive surgery. By using the Intralase femtosecond laser and an active tracking system with or without mechanical fixation, laser refractive surgery may be safely and accurately performed in selected cases of nystagmus. Certain patients improve their BSCVA post-operatively.