What is the end result when regression does not occur after the critical period?

What is the end result when regression does not occur after the critical period?

• A. Ghost vessels (non-branching linear pattern)
• B. Branching vessels at limbal arcades
• C. Vascular occlusion
• D. Epithelial edema only

Answer: (A)

When regression fails to occur after the critical period, the vessels that formed during neovascularization don’t completely disappear; they leave behind ghost vessels. These are non-perfused, linear remnants—essentially empty sleeves of former vessels—that appear as pale, thread-like lines rather than a branching, active network. The key idea is that the vascular pattern becomes a nonfunctional trace of what once grew, not new branching or occlusion. This fits because the other possibilities imply active growth or blockage: branching vessels at the limbal arcades would indicate new angiogenesis; vascular occlusion would mean blocked flow within vessels; epithelial edema is a surface epithelial issue, not a vascular pattern. Ghost vessels precisely capture the scenario of incomplete regression, leaving behind nonperfunded, nonbranching vessel remnants.

When regression fails to occur after the critical period, the vessels that formed during neovascularization don’t completely disappear; they leave behind ghost vessels. These are non-perfused, linear remnants—essentially empty sleeves of former vessels—that appear as pale, thread-like lines rather than a branching, active network. The key idea is that the vascular pattern becomes a nonfunctional trace of what once grew, not new branching or occlusion.

This fits because the other possibilities imply active growth or blockage: branching vessels at the limbal arcades would indicate new angiogenesis; vascular occlusion would mean blocked flow within vessels; epithelial edema is a surface epithelial issue, not a vascular pattern. Ghost vessels precisely capture the scenario of incomplete regression, leaving behind nonperfunded, nonbranching vessel remnants.