Acute Papilloedema present with all except-a) Post neuritic atrophy b) Increase blind spotc) Severe loss of vision d) Hyperemic field

**Core Concept**
Acute Papilloedema is a condition characterized by the swelling of the optic disc due to increased intracranial pressure. It is often associated with conditions such as intracranial hemorrhage, tumors, or meningitis.

**Why the Correct Answer is Right**
Acute Papilloedema typically presents with symptoms such as visual disturbances, headache, and nausea. The blind spot may increase in size due to the swelling of the optic disc. However, post-neuritic atrophy is a consequence of chronic papilloedema, not acute papilloedema. Severe loss of vision is not a common initial presentation, although it may occur in advanced cases. Hyperemic field is a possible sign of papilloedema due to the increased blood flow to the optic disc.

**Why Each Wrong Option is Incorrect**
**Option A:** Post-neuritic atrophy is a complication of chronic papilloedema, not acute papilloedema. It occurs when the optic disc has been chronically compressed, leading to atrophy of the optic nerve.
**Option C:** Severe loss of vision is not a typical initial presentation of acute papilloedema. While it may occur in advanced cases, it is not a common symptom at the onset.
**Option D:** Hyperemic field is a possible sign of papilloedema, not an exception. It is caused by the increased blood flow to the optic disc.

**Clinical Pearl / High-Yield Fact**
Remember that acute papilloedema can be a sign of increased intracranial pressure, making it essential to investigate the underlying cause promptly.

**Correct Answer: B. Increase blind spot**