To solve the problem of the 24h continuous measurements of intraocular pressure（IOP） of the glaucoma patients

a new principle and method based on magnetic force is presented.The pressure to eyeball is produced using the repulsive force generated by two permanent magnets when they are closed by facing the same magnetic pole.The IOP is obtained by calculating the pressure of the fluctuating dot or the rake ratio after the fluctuating dot of the repulsive force-distance curve.The structure of the detecting system and the result of the magnetic simulation of two permanent magnets are given.The results of the pig eye experiments indicate that IOP is relative to the pressure of the fluctuating dot of the repulsive force-distance curve.As a result

the principle and method proposed is feasible for the 24h continuous measurement of intraocular pressure.