Prosetyze3 of electromacnetic sitters of two types are being field tested as a part of this program, These shutters are designed to prevent or winimize te-porery flesh blindness, efter-imaces, or retinel burns, Resuits obtained on animals exposed behind these shut- ters will be compared with these obtained ty other shutters and filter mecnanisis, None of the animals exposed had eyes held open by artificial means. Tnis introduced the possibility that the eye risht be closed \ at tire zero, 4n alarm bell was set up to waken animals, Caneras focused on the animals were used to determine shutter speed and to No srirals exnosed to detonation LACRCSSE received choricretiral LuiTSe CUNCLESITLS reclicted tets] thermal yield at the exposure site on PAVID (Tarten), 2.9 niles from ground sero, should have produced eye dacarte. Tack of choricretinal burn injury méy be explaired by two factors: a. Greater than expected attenuation of the therrval yield at the exccsure site due to hich water content of the air end salt water Spray at the low exrcsure site level A ka it be The obscuring of a stenificent rortion of the fireball by ris YTaicsed by this surface burst. Since no burns were produced on any of the exposed animals, n estinate of the effectiveness of the vericus protective mechanisms can be given. However, modification of projected future participation at Eniwetck based on these negative findings is planned. ~ 45 - The lack of BA