RESUMO DOS ARTIGOS DE BRASILEIROS PUBLICADOS NO EXTERIOR
An Improved Surgical Technique for Pterygium Excision With Intraoperative Application of Mitomycin - C
Ophthalmic Surg Lasers 1998;29:685-7.
Marisa B. Potério, Milton R. Alves, José A. Cardillo, Newton K. José
Abstract: A surgical technique was designed to improve safety after pterygium excision with intraoperative application of mitomycin-C (MMC). A limbic incision was performed in 40 eyes. The body of the pterygium was dissected from the episclera to allow its excision. Care was taken to avoid excessive delamination and cauterization of tissues. A 0.02% MMC solution was then applied. Only at the end of the surgery was the head of the pterygium dissected from the cornea. The 8-0 absorbable sutures were used to place both edges of the conjunctiva together to completely cover the area of bare sclera. After a mean follow-up time of 12 months, a recurrence rate of 5% was observed. No complications of therapy were observed. This is a logical alternative to other surgical techniques. However, randomized studies with more patients and longer follow-up are necessary to determine the potential of this procedure in improving the safety of pterygium excision with intraoperative MMC.
Pattern reversal visual evoked response in retinitis pigmentosa
Documenta Ophthalmologica 1999; 96: 321-31.
Flavio R. L. Paranhos, Osamu Katsumi, Miki Arai, Marcio B. Nehemy, Tatsuo Hirose
Purpose: To determine if the pattern reversal visual evoked response (PVER) can objectively evaluate visual function in retinitis pigmentosa (RP). Methods: We retrospectively reviewed the medical records of 29 patients (29 eyes) with RP, a visual acuity (VA) better than 20/100, and for whom an electroretinogram (ERG) and a PVER had been recorded. A steady-state PVER was measured using five check sizes: 160, 80, 40, 20 and 10 min of arc. The best-corrected VA was measured using the ETDRS chart. Visual fields (VFs) were measured using standard Goldmann perimetry. To quantify the VFs, we measured the field size (isopter IV - 2) in four meridians and averaged them. Twenty-five eyes of 25 normal subjects served as controls. Results: The mean and median VAs were 20/40 (logMAR = 0.30 ± 0.20). The average VF (isopter IV - 2) was 20º (median, 9º; range, 2º to 62º). All patients had a recordable PVER. Only 12 (41%) patients had recordable ERGs, all subnormal. The PVER amplitudes showed a relatively good correlation with VA in the intermediate check sizes (40 min of arc, r = 0.611, P = 0.0004; 20 min of arc, r = 0.596, p = 0.007). The PVER ampli-tude-check size function had a flattened inverted V shape in the RP patients and an inverted U shape in the normal subjects, with the mean amplitudes for the RP patients significantly smaller than the normals at all check sizes. Conclusion: The PVER is a useful method for objectively evaluating the visual function in RP patients whose central vision is still preserved.
Datas de Publicação
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Publicação nesta coleção
07 Nov 2007 -
Data do Fascículo
Fev 2000
