Thank you for your question. Using retin-a, or other retinoic acids cannot cause conjuctivitis as this is caused by a bacteria. Derivatives of vitamin a (retin-a, etc), however, can cause irritation to the skin, especially the delicate eye area. My best advice would be to apply outside of the orbital bone, and above the eye brow only as the product tends to travel slightly on its own. In other words, do not apply the product directly to the lid or too close to the lash lines. You will also want to seek medical treatment if you suspect you have conjuctivitis as it is highly contagious and can be transmitted easily. You will also want to avoid touching your facial area as much as possible until you have been treated by a physician because the bacteria can travel to the other eye and cause further infection. All the best to you, and be well.Dr. Todd Hobgood, MD
