This is because other conditions, besides near-sightedness, lead to the development of new blood vessels at the back of the eye (CNV) and macular edema.¹ These alternative diagnoses include wetAMD and DME. 

Therefore, the context of the patient’s personal and medical traits are needed to determine near-sightedness as the likely cause and confirm a diagnosis. The risk factors of mCNV form the traits, which your doctor is looking out for, that make mCNV the diagnosis.

References

1. David Perez et al. Myopic Choroidal Neovascularization, Available at: https://www.aao.org/eyenet/article/myopic-choroidal-neovascularization. Last accessed May 2025