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Question: What is the difference between sphere lenses and toric lenses, and how do I know which one I need?
Soft Contact Lens
Answer: Sphere lenses correct simple short-sightedness or long-sightedness only. Toric lenses correct both sphere power and astigmatism. If you have noticeable astigmatism, toric lenses usually provide sharper and more stable vision. An eye test is required to determine this accurately.