A tonometer nthawi zambiri imapangidwa ndi jenereta yosinthira mawonekedwe a cornea, njira yoyezera ma corneal deformation kapena kukhudzana ndi chipangizo cha cornea ndi sensor yosinthira kuthamanga.Amagwiritsidwa ntchito kuyeza kuthamanga kwa intraocular.Mankhwala odziwika bwino ndi tonometer, tonometer yosalumikizana, tonometer yam'manja, tonometer ya m'manja, tonometer ya m'manja, tonometer ya piezoelectric, rebound tonometer, Indentation tonometer, etc.. Imatha kuthandizira kuzindikira ng'ala, glaucoma ndi matenda ena amaso.Tonometer yopanda kukhudzana imagwiritsidwa ntchito kwambiri tsopano, yomwe ili ndi ubwino wa ntchito yosavuta komanso kuyeza mofulumira.