I've read conflicting information regarding the benefit of GLA (Evening Primrose Oil) for dry eyes. I've been taking fish oil and flax oil for the past 6 months but haven't noticed any benefit. Does anyone know if I should add GLA (Evening Primrose Oil) to my regimen or replace the flax oil with it? If I should take Evening Primrose Oil, what's the right dose for dry eyes? Thanks in advance.