Haemorrhage at macular spot in high myopia is called:
**Core Concept**
High myopia is a refractive error characterized by elongation of the eyeball, which can lead to various complications, including retinal detachment and hemorrhage. The macula, a highly sensitive area in the retina responsible for central vision, is particularly susceptible to damage in high myopia.
**Why the Correct Answer is Right**
A hemorrhage at the macular spot in high myopia is called a "myopic retinal degeneration" or specifically, a "lattice degeneration-associated retinal break" or more commonly, a "retinal dialysis" or "myopic retinal tear". However, the more accurate answer for a hemorrhage at the macular spot is a "retinal dialysis" or a "myopic retinal break". These are all manifestations of a myopic retinal degeneration which is a complication of high myopia.
**Why Each Wrong Option is Incorrect**
**Option A:** Not specified, but a hemorrhage at the macular spot in high myopia is not typically referred to as this.
**Option B:** Not a recognized term in ophthalmology.
**Option C:** Not applicable, as this term does not describe a hemorrhage at the macular spot in high myopia.
**Clinical Pearl / High-Yield Fact**
In high myopia, the risk of retinal detachment and hemorrhage is increased due to the thinning and stretching of the retina. Patients with high myopia should be monitored regularly for signs of myopic retinal degeneration.
**Correct Answer: C. Retinal dialysis. A hemorrhage at the macular spot in high myopia is called a retinal dialysis.**