I am back to trying contacts after a two year layoff. Many years ago I used Focus Toric lenses as my first disposable lenses and they were originally rated for quarterly replacement schedule. When they changed to monthly I spoke to my doctor and he said the lenses hadn't changed and if 3 months was no problem then that was OK.

My next lens was the Acuvue Advanced Toric that were rated 2 weeks but I usually got 1 month out of them.

I now am on my first pair of Acuvue Oasys Astigmatism and the doctor of course wrote 2 week replacement schedule. I told him that I intended to go one month with them and he said if there was no discomfort that that was OK just dont go past one month.

My invincible son has Softlens 58 soft lenses that are rated monthly and he goes upto 5 months before replacing them. Yikes!