Blepharitis is an inflammation of the eyelids that causes dysfunction of the oil glands in the eyelids which results in inflammation in the eyelids, tear film (layer of tears coating the front of the eye) and the front of the eye itself. It is very common and can come in many different varieties, severities, and presentations. It can cause any of the following symptoms: burning, itching, discharge, tearing, dry or gritty feeling, foreign-body sensation, light-sensitivity, redness, pain and/or blurry vision. For some who have blepharitis, they don't have any of these symptoms but can still have the inflammation.
In order to treat blepharitis, everyday in the morning you should do two things: 1. hot compresses and 2. eyelid scrubs. You should do hot compresses for 5-10 minutes over each eye at the same time. It should be as hot as you can tolerate without burning your skin, massaging the eyelids while they are on there. Then, use either commercially available preparations or a dilute baby shampoo solution to scrub your eyelashes on all 4 eyelids. The commercially available preparations are called Ocusoft or Sterilid which are both over-the-counter eyelash scrubbing treatments. These cost more money but are quicker to use. Otherwise, the cheaper alternative is the dilute baby shampoo (4-5 drops Johnson's shampoo in 1/4 cup warm water), you will take the wipe (or dip a qtip in the dilute baby shampoo solution) and use that to scrub right on the eyelashes of each eyelid for 15 seconds. That will take 60 seconds when done to all 4 eyelids. The scrubbing is done right on the eyelid margin, where the eyelashes come out. After that, just splash some water on the eyes and you're done. It does take about 3-4 weeks of doing this consistently every day before it really kicks in, so don't stop it thinking it's not working. Also the eyes are still significantly dry during this 3-4 weeks so use the artificial tears you bought 4x/day in both eyes (one drop per application). After 4 weeks you should be able to start tapering off of the tears to as you need them. Any artificial tear without this redness-reliever chemical in them should be fine; some brand name examples that my patients like using are Refresh, Systane, Blink, Optive.
Just doing the artificial tears, hot compresses and eyelid scrubs alone would likely start to help you after three or 4 weeks--but remember it could take this long of doing it everyday before you see a significant effect, so don't stop it thinking it's not working. You may also need an antibiotic/steroid combination drop if the inflammation has not significantly calmed down after 2-3 weeks.