She lives in Rio de Janeiro, and her work, characterized by the use of different media, is held by galleries and private collections in the US, China, Brazil and Europe.

[4] In the 1970s Geiger, an abstract artist, began to include representational elements into her work, and use photographic engraving, photomontage, assemblage, sculpture, and video.

Geiger's 1978 "A Pao Nosso de Cada Dia", (Our Daily Bread,) original photographic postcard of which there are five exemplars, are held at the Blanton Museum of Art Austin, Texas[12] Tepper Takayama Fine Arts, Boston, Massachusetts,[13] and the Harvard Fogg Museum.

In 2005, Geiger's work was included in the electronic journal Confraria do Vento, edited by Márcio-André, Victor Paes, and Ronaldo Ferrito, in collaboration with the graduate department of the Universidade Federal do Rio de Janeiro.

In 2025, Geiger's work was included in the international group exhibition Narratives in Focus: Selections from PAMM's Collection at the Pérez Art Museum Miami alongside artworks by Njaimeh Njie, Athi-Patra Ruga, Sarah Charlesworth, River Claure, Mary Sibande, Joiri Minaya, Camila Falquez, and Widline Cadet, among others.