👉 In optics, a glaucoma is an eye condition characterized by excessive accumulation of fluid in the eye. The term "glaucescent" refers to the fact that the retina and optic nerve are affected by this fluid buildup, leading to vision problems such as double vision or reduced visual acuity. Glaucoma can be caused by various factors, including aging, excessive alcohol consumption, smoking, diabetes, and certain medications. It is considered a treatable condition with effective treatments, such as laser