👉 Scotomas, also known as achromatoscopy, are a type of visual abnormality that occurs when there is an imbalance in the number or intensity of light-sensitive cells in the retina. This can cause the brain to perceive objects at different intensities than normal, resulting in what may be referred to as "scotopic" vision. Scotomas can occur due to various factors such as vitreous detachment, cataracts, and other eye diseases.