What is a common symptom of glaucoma?

A common symptom of glaucoma is indeed related to fluid dynamics in the eye. Glaucoma is characterized by an increase in intraocular pressure due to an imbalance in the production and drainage of aqueous humor, the fluid that fills the eye. This increase in pressure can damage the optic nerve and lead to vision loss. The condition usually develops gradually and may not present noticeable symptoms until significant damage has occurred.

In contrast, the other options do not specifically relate to glaucoma. Increased tearing can occur due to various eye irritations or allergies, fluid in the eye might refer to conditions other than glaucoma, color blindness is not a symptom of glaucoma but rather a result of differences in color perception, and dry eyes can occur due to various factors unrelated to the pressure dynamics associated with glaucoma. Understanding the key symptom of increased intraocular pressure helps in identifying and managing glaucoma effectively, making the focus on fluid dynamics critical for anyone studying the condition.