Publications by authors named "Maria Vitoria Oliveira Moura Brasil"

4 Publications

  • Page 1 of 1

Comparison of silicone and polypropylene Ahmed Glaucoma Valve implants.

J Glaucoma 2007 Jan;16(1):36-41

Cole Eye Institute, Cleveland Clinic, Cleveland, OH 44195, USA.

Purpose: To compare the efficacy and safety of silicone and polypropylene Ahmed Glaucoma Valves (AGVs) in patients with refractory glaucoma.

Methods: A retrospective chart review of 180 eyes of 166 patients who underwent AGV implantation with a minimum follow-up period of 3 months was performed. All patients who underwent implantation of either the AGV model S-2 (polypropylene) or model FP-7 (silicone) were included, unless previous laser cyclophotocoagulation had been performed. The primary outcome measures were the change in intraocular pressure (IOP) and visual acuity after surgery and the rate of postoperative complications.

Results: No significant differences were seen in the baseline characteristics of patients in each group. Baseline IOP was statistically equivalent in the 2 groups (silicone =33.8+/-11.9 mm Hg, polypropylene=33.0+/-10.3 mm Hg, P=0.6). A significant reduction in IOP from baseline was achieved after both silicone and polypropylene AGV implantation (silicone =-17.7+/-11.8 mm Hg, polypropylene =-17.7+/-11.3 mm Hg, both P<0.00005). However, there was no statistically significant difference in IOP decrease between the 2 groups at any follow-up visit (all P>0.09). The mean number of postoperative antiglaucoma medications was also similar in the silicone and the polypropylene AGV groups at each time point (all P>0.2). The rate of complications and the change in visual acuity did not differ between the 2 groups (P>0.6 and P>0.3, respectively).

Conclusions: Silicone and polypropylene AGVs have similar results with respect to both safety and efficacy in the treatment of patients with refractory glaucoma.
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http://dx.doi.org/10.1097/01.ijg.0000243477.82779.31DOI Listing
January 2007

Different presentations of intraretinal fluid collections in optic disc pits: OCT study of 3 cases.

Arq Bras Oftalmol 2006 Sep-Oct;69(5):745-7

Universidade Federal de São Paulo, São Paulo, SP, Brasil.

The congenital optic disc pit is a rare anomaly that can lead to major visual impairment associated with subretinal fluid accumulation. The authors describe the optical coherence tomography study of three cases of untreated congenital optic disc pits with different levels of visual impairment and its different presentations of intraretinal fluid collections.
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http://dx.doi.org/10.1590/s0004-27492006000500024DOI Listing
June 2007

[Fundus changes evaluation in degenerative myopia].

Arq Bras Oftalmol 2006 Mar-Apr;69(2):203-6. Epub 2006 May 8.

Departamento de Oftalmologia, Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro (RJ), Brazil.

Purpose: To evaluate the presence of fundus changes in degenerative myopia.

Methods: Forty patients with refractive error of at least -6.00 diopters were selected for ophthalmologic examination followed by posterior pole photograph and echobiometry.

Results: We studied 57 eyes of 37 patients with refractive error ranging from -6.25 to -28.50 diopters, with mean -14.05, and axial length ranging from 26.06 to 32.86 mm, with mean 28.01. We found a temporal crescent in 36.5% and a peripapillary one in 20% of the eyes. Choroidal vessels were seen in 35% of the eyes. Posterior pole changes were as follow: posterior staphyloma in 10.5%, Fuchs' spots in 3.5% and lacquer cracks in 1.5%. Peripheral retinal examination revealed paving stone chorioretinal atrophy in 17.5%, white without pressure in 10.5%, lattice degeneration in 5%, retinal tears in 3.5% and retinoschisis in 1.5% of the examined eyes.

Conclusions: Fundus changes that lead to decreased vision are common in patients with degenerative myopia. Peripheral retinal examination is very important in these patients due to the increased risk of retinal detachment.
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http://dx.doi.org/10.1590/s0004-27492006000200013DOI Listing
October 2006

[Tear film analysis and its relation with palpebral fissure height and exophthalmos in Graves' ophthalmopathy].

Arq Bras Oftalmol 2005 Sep-Oct;68(5):615-8. Epub 2005 Nov 28.

Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ.

Purpose: To evaluate tear film quality by rose bengal staining and its stability by breakup time, relating with palpebral fissure height and exophthalmos in patients with Graves' ophthalmopathy.

Methods: We studied 54 eyes of 27 patients with Graves' ophthalmopathy, either in the inflammatory or in the chronic phase of the disease. The evaluation consisted of tear film qualitative analysis by rose bengal staining using the van Bijsterveld grading scale, tear film stability analysis by breakup time, measurement of palpebral fissure height and exophthalmometry. Qui square test was used to perform statistical analysis.

Results: Among 27 studied patients, 77.8% were females and 22.2% males. Mean age was 44.26 years (SD 12.67). Mean disease time was 5.85 years (SD 4.47) and mean ophthalmopathy time was 5.81 years (SD 5.37). Among 54 studied eyes, 37% had positive test by van Bijsterveld's grading scale, 33.3% tear film breakup time lower than 5 seconds, 57.4% palpebral fissure height greater than 11 mm and 55.6% exophthalmometry greater than 19 mm. When relating tear film breakup time lower than 5 seconds with palpebral fissure height greater than 11 mm we found an odds ratio of 11.2 (p=0.0008). The remaining relationships did not show statistical significance.

Conclusions: Dry eye diagnosed by rose bengal staining and tear film breakup time occurs frequently in Graves' ophthalmopathy. Palpebral fissure height correlates with tear film breakup time in Graves' ophthalmopathy. Its increase may lead to tear film instability.
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http://dx.doi.org/10.1590/s0004-27492005000500007DOI Listing
June 2006