What causes those irritating floaters in our eyes, asked one reader last time? One reader found that his floaters were associated with smoking – and it was enough to get him to quit! It could be linked to excessive Candida overgrowth, says another, but it could just be down to ageing, and so can be combated only with a healthy, nutritionally rich diet. Another reader suggests trying cell salts, and especially Silica (no.12) and Kali Phos (no. 6).