OCULAR PULSE AND PULSATILE CHANGE OF SCLERAL STRAIN IN LIVING IN-SITURABBIT EYES

We investigated ocular pulse (OP), pulsatile change of scleral strain (PSS), and intraocular pressure (IOP) to evaluate extensibility of the sclera in seven living rabbit eyes. OP and IOP were measured by a sem iconductor pressure transducer and PSS was measured using a small foil strain gauge. Both OP and PSS generated similar bell-shaped curves in relation to IOP. Between OP and PSS, there was a linear relation, the gradient of which was considered to be an index of the modulus of ela sticity of the sclera. With further refinement of the method, it is po ssible to apply this technique to human eyes.