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How is the Eeva Test different from PGS or PGD?

Unlike genetic screening or testing using an embryo biopsy, the EevaTM Test uses non-invasive, time-lapse imaging of embryos to help determine the best embryo or embryos for transfer during an IVF cycle.

The Eeva Test, the first and only FDA-cleared test to aid in embryo selection, was developed based on landmark research conducted at Stanford University. The researchers discovered that specific patterns and timing of early embryo cell-division could predict the embryo’s developmental outcome and reflect its underlying molecular health.

This discovery led to the development of the Eeva Test, a non-invasive method to predict on Day 3 which embryos have higher developmental potential. Unlike PGS or PGD, the embryos stay undisturbed in the incubator; they are not handled or biopsied.

Rather, the Eeva Test uses time-lapse images of embryos during incubation. Using a special microscope equipped with a camera, the Eeva System captures images of the developing embryos. The images are then analyzed by proprietary computer software that assesses the patterns and timing of cell division and identifies those embryos with a high probability of further development.


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