Optic disc haemorrhages in posterior vitreous detachment.

Posterior vitreous detachment (PVD) is a common clinical entity but is not often associated with a significant ocular disorder. Optic disc haemorrhages are rarely associated with a PVD and are more commonly associated with other local or systemic disease. The symptoms of a PVD, combined with a careful examination of the vitreoretinal interface allows a confident diagnosis of secondary disc haemorrhage to be made. Two cases of acute symptomatic PVD complicated by disc haemorrhage are presented.

Surgery for pre-macular fibrosis.

We review 12 consecutive cases of pre-macular fibrosis (PMF) treated by vitreous surgical techniques. The causes of PMF included retinal detachment surgery in four patients, idiopathic in three patients, laser treatment in three patients, pars planitis in one patient and diabetic retinopathy in one patient. The membrane was successfully removed in all the patients. One patient developed a retinal detachment that was repaired successfully. All patients had improved visual acuity (VA) of two Snellen lines or more and six patients achieved VA of 6/12 or better. Patients with PMF following retinal detachment had poorer final VA.

Suppurative keratitis: a late complication of radial keratotomy.

A 21-year-old man who had radial keratotomy performed two years previously presented with a painful, red right eye. Suppurative keratitis was found in one of the eight radial incisions and Staphylococcus epidermidis was isolated by culture. Lack of stromal healing of the infected incision and the presence of epithelial cysts in four other incisions in the same eye suggest that the cause of the corneal infection was loss of the epithelial barrier function because of epithelial breakdown.