A macular hole is a circular defect in the macula (the central vision area of the retina at the back of the eye). This hole causes you to lose your central vision, which initially becomes distorted and blurred; and as the hole progresses, a blind spot may develop in the central vision affecting you at both near and distance.
What causes flashes?
- A macular hole can develop due to the vitreous, the gel-like substance in the middle cavity of your eye, pulling on the macula (the central vision area of the retina at the back of the eye). As you age, the vitreous gel contracts and pulls on the retinal tissue and if the vitreous gel sticks to the macula and is unable to pull away cleanly, a macular hole forms.