| 10. It serves no useful purpose.
9. Makes some of the spokes on the eye chart wheel darker than others. 8. Causes doctors to write 4 extra numbers on prescriptions. 7. Causes opticians to have to read 4 extra numbers on prescriptions written in doctor's illegible handwriting. 6. Makes opticians have to bone up on their algebra to convert plus cylinder to minus if prescription is from an MD. 5. Causes the floor to slope & slant when getting cylindrical correction for first time or when getting a stronger cylindrical correction or change in axis. 4. Causes fist fights between MD's & OD's over refracting in plus or minus cylinder. 3. During exam, makes it real hard to tell "which is better, number one or number two?". 2. Makes it uncomfortable to borrow your girlfriend's glasses.
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