The Tono-Pen cannot replace the Goldmann tonometer in the sense that it will give the same readings of IOP. The accuracy of the Tono-Pen is increased, if at least two measurements are taken per eye and then averaged.

No abstract

Abstract

A 29-year-old man was found to have an incidental finding of peripheral cavernous haemangioma of the retina (CHR). Fundus examination revealed peripheral retinopathy with fine haemorrhage. Traditional appearance of CHR was demonstrated by fluorescein angiography. OCT showed the saccular appearance with an overlying epiretinal membrane, consistent with CHR. All other investigations were negative and there was no suggestion of systemic dermatological or neurological involvement.CHR is a rare and usually incidental finding associated with a small risk of associated systemic vascular and neurological involvement. We have demonstrated the fundal and OCT appeaance of peripheral CHR, which is an important clinical and diagnostic finding.