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Understanding spaceflight-associated neuro-ocular syndrome (SANS): what do we know?

Introduction Formerly known as visual impairment and intracranial pressure syndrome (VIIP), space-related neuro-ocular syndrome (SANS) is defined by a collection of ophthalmic and neurological findings in astronauts after long-term spaceflight [1]. Changes in the eyeball, such as hyperopic shift, during...

My top five: Trinkets of fact or fiction

Trinkets of adult wisdom are often delivered to children alongside warnings of catastrophic outcomes. In this article we present five ‘facts’ about eye health and vision and ask the question: to what extent are these ideas backed up by literature?...

Papilloedema: an update

Some readers may have seen a recent report in the national newspapers of the case of a teenage girl with persistent severe headache associated with a fatal brain tumour having been undiagnosed despite many consultations with her medical advisers. It...

Pituitary tumours: why are they so often missed?

Part 2: Clinical varieties, anatomical considerations and case report (see also Part 1 and Part 3) For ophthalmologists there are four types of pituitary tumour to be considered, three of which are named according to the hormone secreted, along with...

Insects, swelling and sight loss: a case of orbital inflammatory syndrome

Despite being the most common cause of painful orbital mass in adults and the third most common orbital disease, orbital inflammatory syndrome still proves to be a difficult ocular condition to diagnose, treat, and manage. A 41-year-old lady presented to...