The macula is located in the retina center, it helps to provide the clear central vision. Macular holes hinder the macula's normal function, and may cause central vision loss.
Macular holes occur often due to aging (after age 60). Macular holes often occur gradually, and their early symptoms include slight distortion or blurriness. The following factors may also cause macular holes: high myopia, macular pucker, diabetic retinopathy or eye injury.
Macular holes cause blurred or distorted central vision. If left untreated, they may also lead to retinal detachment. Some macular holes can heal automatically and require no treatment, but in many cases, surgery is necessary in order to improve vision.