10 Concerning Complications Associated With Untreated Nearsightedness

7. Floaters and Vitreous Detachment

Individuals with high myopia are more prone to developing floaters—those small specks or cobweb-like strands drifting across your field of vision. These are caused by age-related changes in the vitreous gel inside the eye, which can occur earlier and more aggressively in nearsighted eyes. Over time, the vitreous may shrink or pull away from the retina entirely, leading to a condition called posterior vitreous detachment (PVD). While usually harmless, PVD can occasionally cause retinal tears or detachment. If you suddenly see a shower of floaters or flashes of light, seek immediate medical attention—it could signal a serious complication.

8. Choroidal Neovascularization (CNV)

In cases of degenerative myopia, one of the most serious threats to vision is choroidal neovascularization—a condition where abnormal blood vessels grow under the retina. These fragile vessels can leak fluid or blood, distorting vision and causing blind spots. CNV can develop suddenly and progress rapidly, often leading to permanent central vision loss if untreated. Symptoms may include wavy lines, dark spots, or blurred vision in the center of your sight. CNV is typically treated with anti-VEGF injections to stop blood vessel growth. Regular monitoring of high myopia is critical, as early detection of CNV significantly improves treatment outcomes.