**Core Concept**
Floaters are small, dark spots that appear in the visual field due to the presence of vitreous debris or hemorrhage within the vitreous gel of the eye. This condition is often associated with aging, trauma, or retinal detachment.

**Why the Correct Answer is Right**
Acute congestive glaucoma, also known as acute angle-closure glaucoma, presents with symptoms such as severe eye pain, headache, nausea, and vision loss due to increased intraocular pressure (IOP). However, floaters are not typically seen in this condition, as the main issue is the blockage of the trabecular meshwork by the iris, leading to increased IOP. This is in contrast to other conditions listed, where vitreous hemorrhage or retinal detachment can cause floaters.

**Why Each Wrong Option is Incorrect**
**Option A:** Vitreous hemorrhage is a common cause of floaters, as the blood within the vitreous gel can cast shadows on the retina, creating the appearance of floaters.
**Option B:** Retinal detachment can also cause floaters due to the presence of vitreous debris or hemorrhage within the vitreous gel.
**Option C:** Uveitis, an inflammation of the uvea, can cause floaters due to the presence of inflammatory cells within the vitreous gel.

**Clinical Pearl / High-Yield Fact**
When evaluating patients with floaters, it's essential to consider the patient's age, medical history, and any recent trauma or eye injuries. A thorough ophthalmic examination, including a retinoscopy and tonometry, can help determine the underlying cause of the floaters.

**✓ Correct Answer: D. Acute congestive glaucoma**