RESUMEN
BACKGROUND: To compare the clinical outcome of Precizon toric intraocular lens (IOL) (Ophtec Inc.) to that of Tecnis toric IOL (Abbott Medical Optics Inc.). METHODS: This randomized comparative study included 40 eyes (Precizon, 20 eyes; Tecnis, 20 eyes) of 40 patients with visually significant cataract and corneal astigmatism who underwent cataract surgery. Changes in uncorrected distant visual acuity (UCDVA), best corrected distant visual acuity (BCDVA), uncorrected intermediate visual acuity (UCIVA), refraction, residual astigmatism, rotation of the IOL axis, and higher order aberrations at 3 months postoperatively were evaluated. Vector analysis was performed using the Alpins method. RESULTS: Both groups showed significant reduction in refractive astigmatism after the surgery (Precizon: - 1.06 ± 0.94 Diopter (D) to - 0.31 ± 0.29 D, p = 0.042; Tecnis: - 1.83 ± 1.29 D to - 0.41 ± 0.33 D, p = 0.015). There was no significant (p > 0.05) difference in postoperative UCDVA, BCDVA, or residual astigmatism between the two groups, although a tendency of better UCIVA was observed in the Precizon group. Vector analysis parameters showed no statistically significant difference beween groups(P > 0.05). Significant difference in rotation of toric IOL axis was found between the two groups (Precizon: 1.50° ± 0.84, Tecnis: 2.56° ± 0.68, p = 0.010). Spherical aberration in the Precizon group was significantly (p = 0.005) lower than that in the Tecnis group. CONCLUSIONS: The Precizon toric IOL group had better rotational stability at 3-month postoperatively. Both Precizon toric IOL and Tecnis toric IOL could be effectively used by cataract surgeons to correct preexisting corneal astigmatism through cataract surgery. TRIAL REGISTRATION: http://clinicaltrials.gov , NCT03085901 , retrospectively registered on 21 March 2017.
Asunto(s)
Implantación de Lentes Intraoculares , Lentes Intraoculares , Facoemulsificación , Seudofaquia/fisiopatología , Agudeza Visual/fisiología , Adulto , Anciano , Anciano de 80 o más Años , Astigmatismo/complicaciones , Astigmatismo/fisiopatología , Biometría , Catarata/complicaciones , Catarata/fisiopatología , Método Doble Ciego , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Diseño de Prótesis , Refracción Ocular , Resultado del Tratamiento , Pruebas de Visión , Adulto JovenRESUMEN
Orbital schwannomas are characteristically slow-growing benign tumors arising from peripheral sensory nerves. However, the authors' case illustrates the atypical presentation of such a tumor.A 71-year-old male presented with proptosis, visual loss, and periorbital inflammation. Sequential imaging showed continuous and rapid growth of an intraconal mass arising from the medial rectus. Excision of the mass was performed and it was histopathologically proven to be an orbital schwannoma.This patient demonstrates the atypical presentation of an orbital schwannoma, arising from an extraocular muscle with rapid progressive growth and inflammation, indicating it should be considered a differential diagnosis in orbital masses presenting as such.