La compañía británica Lein Applied Diagnostics está desarrollando un sensor óptico portátil para determinar el nivel de glucosa, a través del humor acuoso. Con ello, se pretende substituir el método actual del pinchazo en el dedo para analizar la sangre, que resulta molesto y a veces poco higiénico.
La prueba dura sólo 0,1 segundos y consististe en enfocar una luz de baja intensidad (670 nm) dentro del ojo y en analizar, luego, la luz reflejada. Es aplicable en casos de pacientes que lleven lentes de contacto.
La función del aparato se basa en que la concentración de glucosa en el humor acuoso es 80% de la de la sangre. Los resultados se obtienen entre 5 y 10 minutos después.
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