Harris M G, Decker M R, Funnell J W
Am J Optom Physiol Opt. 1977 Mar;54(3):149-52. doi: 10.1097/00006324-197703000-00005.
Six subjects were fitted binocularly with both nonprism and prism-ballast spherical HydrocurveTM contact lenses to evaluate lens rotation on toric corneas. The 1/2 delta and the 1 delta lenses rotated significantly less than the equivalent nonprism lenses. For 11 of 12 eyes, 1/2 delta was sufficient to stabilize the lens.
六名受试者双眼佩戴非棱镜和棱镜压载球面HydrocurveTM隐形眼镜,以评估复曲面角膜上镜片的旋转情况。1/2棱镜度和1棱镜度的镜片旋转明显少于同等的非棱镜镜片。在12只眼中的11只眼中,1/2棱镜度足以稳定镜片。