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D McLeod. A chronic grey matter penumbra, lateral microvascular intussusception and venous peduncular avulsion underlie diabetic vitreous haemorrhage (Br J Ophthalmol 2007;91:677–89). On page 679 (left column, line 22) the sentence should read: “Eventually, the VEGF/VEGFR2 system is massively expressed within and immediately surrounding those veins giving rise to the new vessels as well as, and in continuity with, the preretinal neovasculature itself.”

In the credit for the December 2007 cover “The Royal College of Ophthalmologists” was incorrectly referenced as “The Royal College of Ophthalmology”. In addition the following information should have been published about the cover image:

The double wheel Phoropter was made by Davidson & Co of Great Portland Street, London in about 1902. It is made of a wood surround which holds in the lenses the whole mounted on a brass stand. It was designed to facilitate the easy and quick introduction of a range of lenses for retinoscopy. Similar models had a chin rest for the patient and a reading chart suspended from the front of the instrument stand. The firm of Davidson made a range of testing room equipment including a perimeter, a monocular microscope of 30× magnification and a Worth-Black amblyoscope.

Courtesy of Mr Richard Keeler, Curator, Museum of the Royal College of Ophthalmologists.

We apologise for these errors.

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