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Which eye drops are best for dry eyes?

Listener Carole wakes up each morning with dry, gummed-up eyes. As a result she's built up a small hoard of different eye drops, variously promising to hydrate, soothe, or relieve; and that's only a fraction of the many drops, vials, and ointments out there on the pharmacy shelves. Carole's seen some brands come with premium prices, and others promise to be "preservative-free". She wants to know: are any of them the best thing since sliced bread?

To find out, Greg Foot is joined by consultant corneal and cataract surgeon Bita Manzouri and research optometrist at Aston University Dr S貌nia Trav茅 Huarte.

All of our episodes start with YOUR suggestions. If you鈥檝e seen an ad, trend or wonder product promising to make you happier, healthier or greener, email us at sliced.bread@bbc.co.uk OR send a voice note to our WhatsApp number, 07543 306807.

RESEARCHER: JULIA RAVEY
PRODUCERS: PHIL SANSOM AND GREG FOOT