This study aims to determine the incidence of angle recession and glaucoma after traumatic microhyphema. Records of all patients treated for traumatic hyphema or microhyphema admitted to a district hospital throughout a 10-year period were retrospectively reviewed. Patients with open-globe injury were excluded. The following clinical features were recorded during patients' initial presentation and follow-up visits: Snellen visual acuity, examination with slit-lamp biomicroscopy, intraocular pressure (IOP), dilated fundoscopic examination, gonioscopic examination and treatment. For patients with IOP > 21 mmHg and requiring glaucoma medications, visual field tests were performed. A total of 97 patients met the study criteria, of which 62 had microhyphema and 35 had gross hyphema. Among the traumatic microhyphema patients, 47 (75.8 %) had angle recession and 4 (6.5 %) had glaucoma with mean follow-up of 49 months (range 6-98 months). A statistically significant association was found between angle recession greater than 180° and the occurrence of glaucoma (p < 0.01). No statistically significant differences were found between groups of patients with microhyphema or gross hyphema regarding the incidence of angle recession and glaucoma. The complications of angle recession and glaucoma in patients after traumatic microhyphema appear similar to those found in patients after gross hyphema.
Here, we report a large, overhanging cystic bleb that compromised vision and induced a foreign body sensation in a patient who underwent a trabeculectomy surgery with anti-metabolite therapy 4 years prior. Ultrasound biomicroscopy revealed multiple loculations with thin septa inside the bleb and a high risk of damage to the bleb was anticipated with a straight forward surgical excision. We injected autologous blood and placed a compression suture 6 weeks prior to surgical excision of the overhanging portion of the bleb. The operation was successful in preserving excellent bleb function, restoring visual acuity, and alleviating symptoms in our patient with up to 9 months of follow-up.
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