Dry

Dry Eye Syndrome
Synonyms	Keratoconjunctivitis sicca (KCS), dry eye disease (DED), dysfunctional tear syndrome
Pronounce
Specialty	Ophthalmology
Symptoms	Irritated, gritty, scratchy, or burning eyes, a feeling of something in the eyes, excess watering, blurred vision
Complications	Increased risk of eye infections, damage to the surface of the eyes
Onset
Duration	Long term
Types	Evaporative, aqueous deficient
Causes	Decreased tear production, increased tear evaporation, imbalance in tear composition
Risks	Older age, dry air, contact lens wear, certain medications, certain medical conditions
Diagnosis	Based on symptoms, tear production tests
Differential diagnosis
Prevention	Avoiding dry environments, using humidifiers, wearing sunglasses outdoors
Treatment	Eye drops, increasing humidity, wearing glasses instead of contact lenses
Medication	Artificial tears, anti-inflammatory agents
Prognosis	N/A
Frequency	Common
Deaths	N/A

Dry refers to a lack of wetness or moisture, often resulting in a sensation of dryness. In a medical context, "dry" is frequently associated with Dry Eye Syndrome, a common condition affecting the eyes. It is also a descriptor used in various other medical and environmental contexts.

Medical Conditions

Dry Eye Syndrome

Dry Eye Syndrome, also known as keratoconjunctivitis sicca (KCS), is a condition where the eyes do not produce enough tears or the tears evaporate too quickly. This leads to inflammation and damage to the surface of the eye. Symptoms include feelings of dryness, irritation, reduced tear quality, and visual disturbances. Treatment often involves the use of artificial tears, eye drops, and in some cases, anti-inflammatory medications.

Dry Skin

Dry skin, or xerosis, is another common condition characterized by a lack of moisture in the epidermis, the outer layer of the skin. It can be caused by environmental factors, such as cold or dry weather, or it can be a symptom of underlying health issues. Treatment typically involves the use of moisturizers and changes in bathing habits.

Dry Mouth

Dry Mouth, also known as xerostomia, involves a decrease in saliva production by the salivary glands. This can lead to difficulties in tasting, chewing, swallowing, and speaking. Dry mouth is often a side effect of medication, a symptom of diseases such as diabetes, or a result of radiation therapy to the head and neck.

Environmental Conditions

In environmental contexts, "dry" can refer to climates or periods with little to no precipitation, which can impact agriculture, water supply, and the prevalence of wildfires. Areas with persistently dry conditions are typically known as deserts.

See Also

• Dehydration
• Drought
• Humidity

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