Publications by authors named "Harley Edison Amaral Bicas"
Purpose: To determine the drift variations of the postoperative alignment in patients who underwent strabismus surgery and to identify possible risk factors associated with such occurrence.
Patients And Methods: We reviewed the variations in postoperative alignment drift of 819 patients who underwent rectus muscle surgery from January, 1995 to December, 2005 at the Hospital de Clínicas da Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo. The patients were divided into four groups according to the type of deviation (alternating esotropia, monocular esotropia, alternating exotropia and monocular exotropia).
Purpose: To determine the effects of 6.0% carboxymethylcellulose (CMC) in modifying the oculomotor system of rabbits by means of viscoelastic action forces, the durability of this effect and possible inflammatory reaction.
Methods: Twenty-five New Zealand rabbits were divided into two experimental groups: one treated with a peribulbar injection of 6.
Purpose: Intermittent exotropia may be decreased by stimulation of accommodative convergence. Once excessive accommodation has been related to myopia, our objective was to evaluate refractive errors changes in children under overcorrecting minus lens therapy.
Methods: A retrospective chart review of 21 children with intermittent exotropia was performed.
This case report describes clinical data from mother and son with bilateral Brown's syndrome and highlights possible genetically determined predispositions.
View Article and Find Full Text PDFPurpose: From a quantitative point of view, to determine if the viscous friction forces could act as possible promoters of ocular stabilization keeping the rotational movements, which would provide the necessary values to be used in the ocular system.
Methods: A mechanical model was created to measure the necessary forces to overcome the friction of an aluminum sphere partially kept in a viscous liquid. Solutions of carboxymethylcellulose from 1.
Abnormal head position is a compensatory condition which improves patients' vision. It can be caused by ophthalmological problems such as oculomotor imbalances (strabismus, nystagmus) and high astigmatism. However, it results in esthetic impairment, orthopedic trouble and facial asymmetries.
View Article and Find Full Text PDFPurpose: To evaluate microscopically the signs of inflammatory reaction due to the fixation of an orbitary implant (magnet, covered by gold).
Methods: An experimental study was performed in 54 adult female rabbits, divided into 3 groups of eighteen with 3 subgroups of 6; an evaluation at 1, 3 and 6 postoperative weeks was performed. An implant (magnet, covered by gold) was fixed in the inferior orbital rim using biologic glue, screw or unabsorbable suture (Mersilene 5.
Purpose: To measure the duration of the operation, the strength of tissue adhesion, and to perform a clinical and histopathological study of ocular reinsertion of superior rectus muscles of rabbits with four different tissue adhesives, as an alternative to the use of polyglactin suture in strabismus surgeries.
Methods: One hundred New Zealand rabbits were used for two experiments: I-A and I-B, with fifty rabbits for each experiment. These groups were further divided into five groups of ten rabbits (twenty eyes), which were subjected to the removal of the superior rectus muscle of both eyes, either with suture (control) or tissue adhesive: polyglactin 910, 6-0 suture and tissue adhesives made of fibrin, cyanoacrylate, albumin-glutaraldehyde and gelatine-resorcinol-formaldehyde-glutaraldehyde.