My daughter, Rebecca, never wants to wear her glasses and it drives me mad. She’s 18, and at her age she really needs to look after her eyesight. I recently forced her to go to the opticians as she was complaining about not being able to see things in class.

The optometrist said she’s shortsighted and needs glasses, but she refuses to wear them. I think it’s a ridiculous display of vanity. Rebecca will deliberately leave her glasses at home, even though I let her choose nice designer frames, costing more than £100.

Her father and I have told her that contact lenses are a luxury, much like makeup She says she sits close to the front of class at school and doesn’t need to wear them every day. I’m concerned that not wearing them will make her eyesight worse. Rebecca has started researching laser eye surgery, which I think is so dangerous.

We’re at a bit of a stalemate as she is asking if we will buy her monthlies, which cost £20 a month I wouldn’t fund anything like that, especially at her age. She wants contact lenses, but I said she’ll have to pay for those with her own money, which I think is fair. Her father and I have told her that contact lenses are a luxury, much like makeup.

She usually buys her own makeup, using the money she’s earned from her part-time job in a cafe in our village. But Rebecca thinks we should pay for her contact lenses as, apparently, that’s what her best friend has her parents do. She says contact lenses are not a luxury but rat.