Investigation of the effectiveness of a new portable 'cryopen' probe for cryotherapy (CryoTreq®).

Background: To test the effectiveness of a new, innovative, single-use handheld 'cryopen' (CryoTreq®), which has been developed and marketed by Vitreq.

Methods: Animal testing of cryopexy using the Cryotreq ® in two pig eyes was performed.

Results: The biological effects of cryopexy were observed.