Retinal blood flow in diabetes.
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Blood Flow Velocity↗
Biomedical subjects
M H Montenegro
Publications and source records attributed to M H Montenegro.
Cataract extraction as a means of treating postfiltration hypotony maculopathy.
Hypotony maculopathy may arise after glaucoma filtering surgery. This can be treated by inducing inflammation and scarring within the filter, with the aim of increasing intraocular pressure (IOP) and promoting resolution of maculopathy. Cataract extraction can promote such inflammation. Phacoemulsification with posterior chamber intraocular lens (PC IOL) implantation was performed in two consecutive patients with postfiltration hypotony maculopathy and preexisting cataracts. After cataract extraction, improvement of IOP, visual acuity, maculopathy, and metamorphopsia occurred in both patients. Cataract extraction can be beneficial in the management of postfiltration hypotony maculopathy.
Cataract Extraction↗
Midterm reversible failure in trabeculectomies with adjunctive mitomycin-C.
BACKGROUND AND OBJECTIVES: Trabeculectomies usually fail early (< 21 days) or late (> 6 months) when no antifibrotic agent is used. Failure is uncommon during the midterm period, between 3 weeks and 6 months. The purpose of this study is to verify the incidence of failure of trabeculectomies with mitomycin-C (MMC) during the midterm period and to evaluate the safety and efficacy of laser suture lysis (LSL) for reversing it. PATIENTS AND METHODS: The authors reviewed the records of 130 consecutive patients who underwent trabeculectomy with adjunctive MMC. RESULTS: Fourteen patients (15 eyes) had increased intraocular pressure (IOP), between 21 and 185 days (median 41 days). LSL was effective in decreasing the IOP to acceptable levels in 10 (66.6%) of the 15 eyes. No complications related to LSL were noticed. CONCLUSION: The reversibility of midterm failure seems to be a unique feature of trabeculectomies with MMC.
Adult↗
Corneal incision phacoemulsification and internal bleb revision.
BACKGROUND AND OBJECTIVE: Cataract extraction in filtered eyes often leads to decreased outflow and, eventually, to bleb failure. The authors describe a surgical technique that promotes preservation of the filtering bleb. PATIENTS AND METHODS: The authors retrospectively reviewed 19 eyes of 19 consecutive patients who underwent corneal incision phacoemulsification and simultaneous internal revision of the previous filtering bleb. RESULTS: The mean follow-up time was 13.6 +/- 7.6 months. Visual acuity improved in all patients (89.4 percent achieved 20/40 or better). No significant difference was noted between preoperative and postoperative intraocular pressures and astigmatism. The bleb was preserved in 89.4 percent of the eyes at the time of the last follow-up. CONCLUSIONS: This surgical technique proved to be safe and yielded good results.
Adult↗