For a very short person, the segment should be placed where?

For a very short person, the segment of a bifocal or progressive lens is typically placed in its normal position to ensure optimal visual comfort and functionality. The normal positioning typically accounts for the average resting gaze height, which is determined by the wearer’s average posture and eye level when viewing objects at various distances.

By placing the segment in the normal position, the optical center of the lens aligns correctly with the pupil, allowing for efficient use of the lens in different viewing situations without straining the neck or altering natural posture. This alignment is crucial, especially for individuals with shorter stature, as any deviation from the normal segment height can lead to visual discomfort or ineffective use of the lens design.

Adjustments like increasing or decreasing the inset are generally made to accommodate specific prescription needs or lifestyle habits but don't apply in this context. For a very short person, maintaining the segment in the normal position maximizes usability while providing clear vision for both distance and near tasks.