PURTSCHER-LIKE RETINOPATHY AND PARACENTRAL ACUTE MIDDLE MACULOPATHY CAUSED BY INDUSTRIAL SILICONE EMBOLISM.

PURPOSE: This article describes a rare occurrence of acute vision loss in a healthy young patient after a cosmetic procedure. METHODS: Findings on clinical examination, color fundus photography, and swept-source optical coherence tomography angiography. RESULTS: A previously healthy 26-year-old male-to-female transsexual presented with dyspnea, fever, and hypoxemia 1 day after cosmetic injection of industrial silicone for buttock augmentation. The patient reported decreased vision on the right eye 4 days later and decreased vision on the left eye 5 days later. Fundus examination revealed bilateral retinal precapillary occlusion, demonstrating intraretinal hemorrhages, cotton wool spots, and Purtscher flecks within the posterior pole of both eyes. Optical coherence tomography angiography revealed capillary ischemia and an enlarged foveal avascular zone. CONCLUSION: Swept-source optical coherence tomography is a valuable tool for evaluation of Purtscher-like retinopathy and paracentral acute middle maculopathy.

Reliability of foveal avascular zone measurements in eyes with retinal vein occlusion using optical coherence tomography angiography.

BACKGROUND: To evaluate the reliability of foveal avascular zone (FAZ) area measurements using optical coherence tomography angiography (OCTA) in eyes with retinal vein occlusion (RVO). METHODS: Twenty-five OCTA exams of patients with RVO were evaluated retrospectively. Three examiners performed manual measurements of the FAZ, and interrater and intrarater reliability were obtained. RESULTS: The intraclass correlation coefficient (ICC) for interrater reliability for individual measurements was 0.62 (moderate) with a 95% confidence interval (CI) of 0.40 to 0.79 (p < 0.001). The ICC (95% CI) for intrarater reliability was 0.92 (0.82 to 0.96) for rater A, 0.96 (0.91 to 0.98) for B, and 0.88 (0.76 to 0.94) for C (p < 0.001). In all subanalyses including presence of edema and type of occlusion, interrater reliability was poor/moderate, and intrarater reliability was good/excellent. CONCLUSION: The FAZ varies significantly among eyes with RVO, so measurements obtained using OCTA should be analyzed with caution due to the moderate level of reliability among different examiners.

The Use of Topiramate for Weight Loss Causing Acute Glaucoma: A Case Report and Literature Review.

Topiramate is a sulfa-containing drug which is able to disrupt the ocular blood barrier. Recently it has gained more popularity, being used in many clinical conditions. Nowadays, the cases of glaucoma induced by topiramate have increased due to the use of this drug to induce weight loss. We here described a 29-year-old female presented with a one-day history of blurred vision in both eyes and headache. She was using a weight loss formula containing topiramate 100 milligrams. Ophthalmologic exam revealed an important myopic shift of -7.00 spherical diopters at presentation with intraocular pressure (IOP) of 32 mmHg and a shallow anterior chamber in both eyes. After discontinuous of topiramate and use of cycloplegic eyedrops, myopic shift improved and IOP controlled after two days. The anterior chamber was significantly deeper in both eyes after two weeks. It is theorized that topiramate can provoke a ciliochoroidal effusion and, therefore, can cause an anterior displacement of lens-iris diaphragm with a secondary angular closure. The treatment must include cycloplegic and discontinuation of the drug. Sulfa-containing drugs lead to an indirect mechanism of angle closure, frequently bilateral and, as mentioned above, with a different treatment approach. If unrecognized and untreated, it can provoke high morbidity with possibility of bilateral permanent visual loss.

Surgeons' knowledge and attitude regarding concepts of nutritional therapy.

OBJECTIVE: To compare the knowledge of nutritional therapy (NT) of surgery residents and surgeons. METHODS: We applied two standardized questionnaires on knowledge, attitude and behavior regarding NT to 50 physicians (35 residents and 15 surgeons) of 12 different surgical areas. We compared the proportions of hits according to the perception on the subject of each group using the Fisher exact test, with 5% significance and p < 0.05. RESULTS: More than 80% did not feel safe regarding NT and 46% denied knowledge of the NT multidisciplinary team (NTMT). There was a higher percentage of correct answers among residents in the items: surgical trauma and its nutritional influence on the patient (p = 0.047); normal BMI (p = 0.036); preoperative NT (p = 0.007); and indication of preoperative NT in the group that referred that to interact with the NTMT (p = 0.02). Among surgeons: complications of NT and NT in previously malnourished patients (p = 0.044); and methods for assessing preoperative nutritional status in the group that referred to interact with the NTMT (p =0.01). CONCLUSION: there are gaps in medical education. Only 13.3% were confident about NT, and their knowledge did not justify such confidence. There were no differences between the successes of confident and non-confident about NT in most subjects. The best results came from the group that claimed to be assisted by any NTMT. Better medical educational programs should be goal for this university.