Rotational stability of the V4b implantable collamer lens

• Autores: Carlos Lisa, José F. Alfonso Sánchez, Luis Fernández-Vega Sanz, C. Pérez Vives, Robert Montés Micó
• Localización: Journal of Emmetropia: Journal of Cataract, Refractive and Corneal Surgery, ISSN-e 2171-4703, Vol. 6, Nº. 1, 2015, págs. 7-12
• Idioma: inglés
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• Resumen

  • PURPOSE: To assess rotational stability from corneal and refractive astigmatism vectorial decomposition after Toric Implantable Collamer Lens (TILC) V4b model implantation.

    SETTING: Fernández-Vega Ophthalmological Institute, Oviedo, Spain METHODS: Thirty-five eyes of twenty patients implanted with TICL V4b model were evaluated. Refraction and keratometry were measured in all patients preoperatively and 3, 6 and 12 months post-surgery.

    RESULTS: No statistically significant differences were found in corneal astigmatism vectorial decomposition (J0 and J45) between the preoperative evaluation and each postoperative visit (p > 0.05). However, statistically significant differences in refractive astigmatism vectorial decomposition (J0 and J45) were found between preoperative and postoperative measurements (p < 0.05). Refractive astigmatism vectorial decomposition remained stable in each pair of visits during the 12-month follow-up with no statistically significant differences (p > 0.05).

    CONCLUSIONS: These outcomes suggest high rotational stability of the TICL model V4b, with no significant rotation or axis misalignment in any eye at 12-month follow-up.

    In addition, no eyes required TICL repositioning in this period.

    SUMMARY: The Toric Implantable Collamer lens V4b model showed high rotational stability after implantation in eyes with low and high astigmatism in a vectorial decomposition analysis during a 12-month follow-up.