If you have glaucoma in both eyes, usually only one eye will be treated at a time. Laser treatments for each eye will be scheduled several days to several weeks apart. Studies show that laser surgery can be very good at reducing the pressure in some patients. However, its effects can wear off over time.
The statute of limitations pertaining to customer initiated chargebacks is 18 months from the time the transaction appears on the statements. So, for chargeback purposes it is important to keep you business credit card receipts for 18 month.
Records for tax deductions taken. Length of time to keep, and why: Seven years. 1  The IRS has three years from your filing date to audit your return if it suspects good-faith errors.2  The three-year deadline also applies if you discover a mistake in your return and decide to file an amended return to claim a refund.redit card receipts and statements. Length of time to keep, and why: From 45 days to seven years. 1  Keep your original receipts until you get your monthly statement; shred the receipts if the two match up.