Dry eye occurs when your eyes don't produce enough tears or the right kind of tears do not lubricate your eyes. Untreated, severe dry eye can damage tissue and possibly the cornea.
If your eyes feel dry, scratchy and watery, you could have dry eyes. Even blurred vision can signal dry eye. Your eye care professional can perform some simple in-office tests to confirm the diagnosis.

Conjunctivitis or "pink eye"

Viral conjunctivitis, or "pink eye," is a cold in the eye. It is caused by a virus, which is very contagious and spreads easily. The virus may affect one or both eyes. Viral conjunctivitis can be very uncomfortable because it makes the eyes itch and water. Your own body defenses will clear viral conjunctivitis in 1 to 3 weeks, and medicine is not necessary.

• You may use cold compresses on your eyes if they make you feel better. Use the compresses for 10 minutes each time, 4 or 5 times a day.

• You may use artificial tears (available without a prescription) if they make your eyes feel better.

• You may use dark glasses if they make your eyes feel better.

• Wash your hands after you touch your eyes or face.
• Do not share towels, pillows, etc., with anyone.
• Do not wear contact lenses until this condition clears up.
• Throw out all your old eye makeup, and do not wear eye makeup until this condition clears up.
• Come to the clinic immediately if you notice pus in your eye, if your eye starts to hurt, or if your vision decreases.
• Keep your follow-up appointment.
• Stay home from work or school until this condition clears up.

If you have viral conjunctivitis. You should remain at home until symptoms will clear up.

Blepharitis

Blepharitis is an inflammation of the eyelid margin. There are many tiny openings of the lid margin which drain oil. These openings can get clogged up for a variety of reasons. The result is swollen or red eyelids. Warm compresses and lid scrubs are the usual remedies.

Warm Compresses 2 times a day

• Wash your hands.
• Heat up a clean washcloth using warm tap water.
• Wring out the washcloth and hold it over your closed lids until it cools.
• Repeat until you have had a warm washcloth over your lids for 10 minutes. You may put a warm pack, such as the 3M Cold/Hot Pack™ over the washcloth to keep it warm. Follow the manufacturer's instructions to heat it up.
• Wash your lids gently with warm water or go on to lid scrubs, depending on what your doctor says.

• Mix 3 drops of Johnson's Baby Shampoo™ in a small glass of warm water.
• Wet a cotton swab in the water and gently scrub your eyelids where the lashes grow. Try not to get shampoo into your eye.
• Rinse your lids with warm water.

Artificial tears, which you can get without a prescription, will often help relieve the eye irritation 
Blepharitis is a chronic condition and requires chronic care, but usually once it is under control you will be able to treat it less vigorously than you need to initially.

Pterygium

A Pterygium is a yellow-white triangular growth of tissue usually on the nasal side of the eyeball. It may become red, inflamed or advance toward the center of the eye. Pterygia develops in response to sun exposure and chronic irritation of wind and dust. It is a benign condition and will not spread to damage the internal part of the eye.

Treatment:

• Protect the eyes from sun, dust and wind (e.g., sunglasses or goggles with ultraviolet filter, if appropriate).

• To reduce optical irritation, if present, use lubricant artificial tears eye drops.

• A Pterygium is often best treated by using drops. Occasionally, other forms of treatment are necessary, which may include surgery.

• If you do not feel better after one month of treatment, make an appointment to be seen by a doctor.