Will cholesterol-lowering drugs prevent glaucoma progression?

Hi David,
I would like to ask a question about a new medication that my glaucoma specialist has recommended to my GP. The glaucoma specialist has recommended that I start taking Lipitor, the old cholesterol drug. My glaucoma specialist said there is a 30% to 40% chance Lipitor will prevent further progression of my glaucoma.Is it a common thing for people to take Lipitor, as I'm not keen at all to start taking a statin if i don't have to. And i don't know any other people with elevated eye pressure or glaucoma.

For background, I'm also taking Travatan eye drops in the evening.  I have have no damage yet from slightly elevated pressure in my eyes and I'm a 44yr old insulin-dependant diabetic. My cholesterol is in the acceptable range also.  Id rather go with more natural ways, if possible. Would you have any opinion?