Signs, Symptoms & Clinical Features
Diplopia (double vision)
Diplopia is double vision, which can occur in hydrocephalus when raised pressure affects the nerves controlling eye movement.
In short: Diplopia (double vision)
- It is seeing double.
- It can result from raised intracranial pressure affecting eye-movement nerves.
- A sixth nerve palsy is a common cause in this setting.
- New double vision warrants evaluation.
What it is
Diplopia is double vision — seeing two images of a single object. In hydrocephalus, it can occur when raised intracranial pressure affects the nerves that control eye movements, most commonly the sixth cranial nerve.
Understanding Diplopia (double vision)
When raised pressure impairs an eye-movement nerve (such as causing a sixth nerve palsy), the eyes can become misaligned, producing double vision — often worse when looking in a particular direction. Diplopia is therefore one of the visual symptoms that can accompany raised intracranial pressure in hydrocephalus. Because new double vision can signal raised pressure (and, in someone with a shunt, a possible shunt problem), it warrants evaluation. Diplopia is assessed alongside other signs, such as headache, vomiting, and papilledema, to determine whether raised pressure is involved.
Why it matters
Understanding diplopia helps families and patients see that new double vision can be a sign of raised intracranial pressure in hydrocephalus and should be evaluated, particularly in someone with a shunt.
Common questions
What is diplopia?
Double vision — seeing two images of one object.
Why can it occur in hydrocephalus?
Raised pressure can affect the nerves controlling eye movement.
Should new double vision be evaluated?
Yes — it can signal raised pressure or a shunt problem.
Bottom line
Diplopia is double vision that can result from raised intracranial pressure affecting eye-movement nerves in hydrocephalus, warranting evaluation.
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