title: Spontaneous Rotation of a Toric Implantable Collamer Lens.
abstract: We present a case of toric implantable collamer lens (TICL) spontaneous rotation in a patient with myopic astigmatism. A 23-year-old female underwent TICL implantation. Preoperative uncorrected visual acuity (UCVA) was 20/800 and 20/1200, respectively, with -7.75 -4.25 × 0° and -8.25 -5.25 × 180°. The left eye achieved an UCVA of 20/30. After 3 months of successful implantation of TICL in the left eye, the patient presented with a sudden decrease in visual acuity in the left eye. UCVA was 20/100 with a refraction of +2.50 -4.50 × 165°. We observed the toric marks with a 30° rotation from the original position and decided to reposition the TICL, obtaining a final UCVA of 20/25, which remained stable at 6 months' follow-up. TICL can present a considerable rotation that compromises visual acuity. The relocation of TICL is a safe and effective procedure to recover visual acuity due to significant spontaneous TICL rotation.
authors.affiliation: Department of Cornea and Refractive Surgery, Institute of Ophthalmology 'Conde de Valenciana', Mexico City, Mexico.
authors.forename: Alejandro
authors.initials: A
authors.lastname: Navas
authors.forename: Mayeli
authors.initials: M
authors.lastname: Muñoz-Ocampo
authors.forename: Enrique O
authors.initials: EO
authors.lastname: Graue-Hernández
authors.forename: Arturo
authors.initials: A
authors.lastname: Gómez-Bastar
authors.forename: Tito
authors.initials: T
authors.lastname: Ramirez-Luquín