Complex sentence: Macular hypoplasia, also known as fovea hypoplasia, is a rare medical condition involving the underdevelopment of the macula, a small area on the retina (the eye's internal surface) responsible for seeing in detail.
Split into simpler sentences: Macular hypoplasia, also known as fovea hypoplasia, is a rare medical condition involving the underdevelopment of the macula. The macula is a small area on the retina (the eye's internal surface) responsible for seeing in detail.