What are cholinergic, aquagenic and pressure urticaria?

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Can I go for LASIK if I have high eye pressure, and what are the implications and considerations?

Elevated intraocular pressures maybe an artefact of the testing method (air-puff versus contact methods including the Goldmann applanation tonometer, or digital tonometer). It is important to ascertain whether your eye pressures are truly high on applanation, as non-contact air-puff tonometers are notorious for giving falsely elevated readings. Secondly, in the context of elevated IOP, you also need to know the corneal thickness as this will determine whether the reading is elevated due to a thicker cornea. This would imply that the real eye pressure is lower than is recorded.

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Dr E-Shawn Goh

Ophthalmologist

Can urticaria or hives be permanently cured?

There are 2 forms of Urticaria: 1. Acute Urticaria which lasts < 6 weeks duration, and often gone within hours to days 2. Chronic Urticaria which last > 6 weeks duration, with daily or episodic weals. The key to "permanent" cure is to: 1. Avoid triggers like heat (including hot showers, exercise) 2. Take oral anti-histamines Hope that this helps!

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