Subject(s)
Cornea/pathology , Corneal Diseases/etiology , Iatrogenic Disease , Keratomileusis, Laser In Situ/adverse effects , Cornea/surgery , Corneal Diseases/pathology , Dilatation, Pathologic/etiology , Dilatation, Pathologic/pathology , Humans , Myopia/surgery , Patient Care/standards , Refraction, Ocular , Visual AcuityABSTRACT
We treated a 5-year-old girl and a 6-year-old boy with acquired Brown's syndrome associated with pansinusitis. In both patients, the diagnosis was established roentgenographically, and the patients were treated with oral antibiotics. Systemic corticosteroids were used in one case, although their clinical value was uncertain. Patients presenting with acute-onset Brown's syndrome of undetermined cause should undergo computed imaging of the orbits and paranasal sinuses.
Subject(s)
Eye Diseases/etiology , Sinusitis/complications , Amoxicillin/therapeutic use , Amoxicillin-Potassium Clavulanate Combination , Child , Child, Preschool , Clavulanic Acids/therapeutic use , Diplopia/etiology , Drug Therapy, Combination/therapeutic use , Eye Diseases/diagnostic imaging , Eye Diseases/drug therapy , Female , Humans , Male , Oculomotor Muscles/physiopathology , Prednisone/therapeutic use , Sinusitis/diagnostic imaging , Sinusitis/drug therapy , Syndrome , Tomography, X-Ray ComputedABSTRACT
We observed the repair process of the choriocapillaris after confluent argon laser retinal photocoagulation in the domestic cat with a plastic injection-corrosion technique coupled with scanning electron microscopy and transmission electron microscopy. Confluent photocoagulation was applied to the area of the retinal tapetum, creating two kinds of lesions: one consisted of five confluent burns and the other of 20 confluent burns. Specimens were prepared at 1, 30, and 60 days. Occlusion of the choriocapillaris was noted regardless of the length of time after photocoagulation. The only sign of repair was noted at 60 days when the choriocapillaris located at the edge of the lesion showed a uniform rearrangement. Transmission electron microscopy revealed severe damage to the endothelial cells, with lack of cell activation and permanent capillary closure in the vessels of the lesion proper.
