Silmätiedot
Silmätiedot, or eye measurements, are a set of precise measurements taken from the human eye to determine the correct fit of eyeglasses, contact lenses, or other vision correction devices. These measurements are crucial for ensuring optimal visual comfort and clarity. The primary silmätiedot include:
1. Pupillary Distance (PD): The distance between the centers of the pupils, which is essential for aligning
2. Segment Height: The distance from the top of the eye to the bottom of the lens,
3. Eye Width: The horizontal distance across the eye, measured at the level of the pupil.
4. Lens Height: The vertical distance from the top of the lens to the bottom of the
5. Bridge Size: The distance between the two sides of the nose where the eyeglasses rest.
6. Temple Length: The distance from the center of the pupil to the end of the temple
These measurements are typically taken by an optometrist or optician using specialized tools and techniques. Accurate