Asunto(s)
COVID-19/diagnóstico , Personal Militar , Fenotipo , COVID-19/clasificación , Humanos , ItaliaRESUMEN
PURPOSE: To evaluate the incidence of secondary cataract in phacoemulsification and intraocular lens implantation using a capsular tension ring in case of zonular dehiscence. METHODS: Phacoemulsification using a double capsular tension ring and intraocular lens implantation was done in 65 eyes with cataract and severe zonular weakness. One year after surgery capsular opacities and fibrosis were detected in a double-blind examination. The results were compared with a control group of 36 eyes that did not have a capsular tension ring but had similar surgery. RESULTS: In the group with the capsular tension ring and implantation 7.7% of patients had moderate or severe posterior capsule opacification, compared with 36.1% in the control group. CONCLUSIONS: Capsular tension rings may influence the formation of capsule opacification.
Asunto(s)
Catarata/prevención & control , Cápsula del Cristalino/cirugía , Implantación de Lentes Intraoculares/métodos , Ligamentos/patología , Facoemulsificación/efectos adversos , Complicaciones Posoperatorias , Prótesis e Implantes , Anciano , Anciano de 80 o más Años , Catarata/etiología , Método Doble Ciego , Femenino , Fibrosis , Humanos , Incidencia , Cápsula del Cristalino/patología , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias/prevención & control , Agudeza VisualRESUMEN
PURPOSE: To quantitatively assess early postoperative endothelial damage caused by two phacoemulsification techniques and to ascertain the effect of differences in phacoemulsification time. SETTING: Department of Ophthalmology, Umberto Hospital, Lugo, Italy. METHODS: This prospective study evaluated 100 patients who had phacoemulsification using one of two techniques: phaco chop (n = 50) or four-quadrant, divide and conquer phacofracture (n = 50). The endothelium of both groups was analyzed preoperatively and 8 weeks postoperatively by specular microscopy. RESULTS: Phaco chop led to significantly shorter phacoemulsification time and less endothelial damage. Mean equivalent phacoemulsification time was 25.53 seconds +/- 11.26 (SD) in the phaco chop group and 87.26 +/- 48.03 seconds in the phacofracture group. Endothelial cell loss was 4.72 +/- 1.2% and 13.80 +/- 4.3%, respectively. CONCLUSION: The phaco chop technique led to shorter phacoemulsification time and less endothelial cell loss.