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3.
Sci Rep ; 12(1): 7357, 2022 05 05.
Artículo en Inglés | MEDLINE | ID: mdl-35513494

RESUMEN

To compare the predictive refractive accuracy of intraoperative aberrometry (ORA) to the preoperative Barrett True-K formula in the calculation of intraocular lens (IOL) power in eyes with prior refractive surgery undergoing cataract surgery at the Loma Linda University Eye Institute, Loma Linda, California, USA. We conducted a retrospective chart review of patients with a history of post-myopic or hyperopic LASIK/PRK who underwent uncomplicated cataract surgery between October 2016 and March 2020. Pre-operative measurements were performed utilizing the Barrett True-K formula. Intraoperative aberrometry (ORA) was used for aphakic refraction and IOL power calculation during surgery. Predictive refractive accuracy of the two methods was compared based on the difference between achieved and intended target spherical equivalent. A total of 97 eyes (69 patients) were included in the study. Of these, 81 eyes (83.5%) had previous myopic LASIK/PRK and 16 eyes (16.5%) had previous hyperopic LASIK/PRK. Median (MedAE)/mean (MAE) absolute prediction errors for preoperative as compared to intraoperative methods were 0.49 D/0.58 D compared to 0.42 D/0.51 D, respectively (P = 0.001/0.002). Over all, ORA led to a statistically significant lower median and mean absolute error compared to the Barrett True-K formula in post-refractive eyes. Percentage of eyes within ± 1.00 D of intended target refraction as predicted by the preoperative versus the intraoperative method was 82.3% and 89.6%, respectively (P = 0.04). Although ORA led to a statistically significant lower median absolute error compared to the Barrett True-K formula, the two methods are clinically comparable in predictive refractive accuracy in patients with prior refractive surgery.


Asunto(s)
Catarata , Hiperopía , Queratomileusis por Láser In Situ , Lentes Intraoculares , Miopía , Facoemulsificación , Aberrometría/métodos , Biometría/métodos , Humanos , Hiperopía/cirugía , Miopía/cirugía , Óptica y Fotónica , Refracción Ocular , Estudios Retrospectivos
4.
J Surg Case Rep ; 2021(4): rjab140, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-33927873

RESUMEN

Bilateral carotid-cavernous fistula (CCF) is a rare disease process, which portends poor visual outcome with delayed diagnosis and treatment. An 82-year-old woman presented with sudden onset of proptosis and decreased vision. A complete ophthalmologic examination along with magnetic resonance (MR) imaging of the brain and orbits, and MR angiography and venography of the brain confirmed the diagnosis of bilateral CCF. Diagnostic cerebral angiogram with concurrent coil embolization of the right cavernous sinus via left superior ophthalmic vein approach was performed. Bilateral indirect CCFs (type D CCF on the right and a type B CCF on the left) regressed completely after unilateral coil embolization. Visual acuity and limitation in extraocular movements significantly improved with complete resolution. In summary, we describe successful management of bilateral concurrent CCF with image-guided embolization and immediate recovery of vision and resolution of ophthalmological symptoms including proptosis and diplopia.

5.
J Surg Case Rep ; 2020(11): rjaa468, 2020 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-33294162

RESUMEN

Behçet's disease (BD) is a multisystemic, immune-mediated occlusive vasculitis of unknown etiology with a chronic, relapsing remitting course. Ocular involvement is characterized by recurrent nongranulomatous uveitis with necrotizing obliterative vasculitis affecting both the anterior and posterior segments of the eye and often leads to blindness. We describe successful surgical management of a rare case of combined rhegmatogenous retinal detachment (RRD) and tractional retinal detachment (TRD) in a patient with Behçet's disease. A 28-year-old Hispanic women with known Behcet's disease presented with loss of vision of both eyes. She was found to have extensive bilateral necrotizing vasculitis with severe ischemia. Despite aggressive antivascular endothelial growth factor (VEGF) therapy and pan retinal photocoagulation, patient progressed to total blindness from development of combined rhegmatogenous and tractional funnel retinal detachment. Small gauge pars plana vitrectomy (PPV) with silicone oil tamponade was performed for retinal detachment repair (without scleral buckle). Combined RRD and TRD was successfully treated with standard PPV with silicone oil placement without use of scleral buckle. Visual acuity 1 year postoperatively improved from ability to perceive light to 20/400. Combined forms of retinal detachment, a rare development in Behçet's disease may be effectively treated with PPV (without scleral buckling) with favorable visual and anatomic outcomes.

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