What type of lens would be best to minimize distortion for someone who requires both near and intermediate vision?

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Selecting a trifocal lens is a suitable choice for a person who needs correction for both near and intermediate vision. Trifocal lenses provide three distinct optical zones within the same lens: typically, the upper section for distance vision, the middle section for intermediate vision, and the lower section for near vision. This design minimizes distortion and allows for a smoother transition between different focal lengths, making them particularly effective for tasks that require both near and intermediate vision, such as reading and using a computer.

In contrast, bifocal lenses only have two sections—one for distance and one for near vision. While they do provide correction for these two ranges, they do not offer the intermediate zone, which can lead to discomfort or the need to reposition the head frequently to see clearly at intermediate distances. Single vision lenses correct only one field of vision (either near or distance) and would not be suitable at all for someone needing correction across multiple ranges. Aspheric lenses can offer some advantages in reducing distortion and improving aesthetics but are not specifically designed to provide the multi-focal capability that trifocal lenses do. Therefore, trifocal lenses offer the most comprehensive solution for situations requiring clear vision at both near and intermediate distances.

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