![]() ![]() In the above-described study, the intracranial pressure measurement was obtained via a two-depth Transcranial Doppler (Vittamed UAB, Lithuania) developed by Prof Ragauskas' team at the Kaunas University of Technology labs. Prof Ragauskas says that his research has, directly and indirectly, contributed to the growing pool of data on the topic. Also, in recent years, evidence supporting this hypothesis poured in from science groups working around the world. Intracranial pressure's correlation with glaucoma opens new avenues for medical professionals to research the reason and possible treatment of this pathology. In the conferences that followed, I saw how our new idea was met with excitement by the international community of ophthalmologists," says Prof Ragauskas. Several years ago, we conducted a series of experiments studying the links between visual field and intracranial pressure, using the non-invasive technology developed here, at KTU. "The idea that brain pressure is related to the visual field is not new. Technology invented in Lithuania used in the study Thus, in normal-tension glaucoma, lowered intracranial pressure is a possible risk factor. As translaminar pressure difference is calculated by subtracting ICP from IOP, the lower the intracranial pressure measure, the higher the TPD. ![]() Researchers conclude that higher TPD could be estimated as a risk factor for the negative development of normal tension glaucoma. We are all aware of the dire outcome," says Prof Ragauskas. That's why it is so important to understand the causes of this condition and to reverse it. "Visual field loss means only one thing - a person is becoming blind. The most significant visual field losses occurred in the nasal zone. The higher the TPD, the more significant damages to the patient's visual field were registered. The study revealed several statistically significant correlations between intracranial pressure, TPD, and visual field changes. The visual field was divided into five zones: nasal, temporal, peripheral, central, and paracentral. The translaminar pressure difference (TPD) was calculated according to the formula TPD = IOP - ICP. Several measurements including intraocular (IOP), intracranial pressures (ICP), and visual field perimetry were recorded during the study. The subjects were selected from the 300 NTG patients referred to the Eye Clinic at the Lithuanian University of Health Sciences between January and October 2018. translaminar pressure difference (TPD) and its connection to glaucoma development.Ī clinical study revealed possible links between brain pressure and glaucomaĨ0 early-stage normal tension glaucoma (NTG) patients were enrolled in a recent study conducted by researchers from Lithuanian, Israeli and American universities. Recently, researchers have focused on the balance between the two pressures, i.e. Both intracranial pressure (ICT), which is pressure inside our skull, measured in the cerebrospinal fluid, and intraocular pressure (IOP) can affect the condition of the optic nerve. He goes on to explain that anatomically, the optic nerve is connected to the brain, and is surrounded by the cerebrospinal fluid. Ragauskas, the Head of the Health Telematics Science Institute at KTU, is the inventor of the non-invasive intracranial pressure measurement technology, used in the study described below. There is a growing awareness among the scientific community, that glaucoma is a condition caused by two pressures - inside the eye and the skull," says professor Arminas Ragauskas from Kaunas University of Technology (KTU), Lithuania. However, these methods do not work in the case of normal tension glaucoma. "Contemporary medicine has methods to treat elevated eye pressure and to slow or even stop the damage to the optic nerve. A so-called normal tension glaucoma (NTG) prevalence among patients in the global population ranges from 30 to 90 percent according to different studies. ![]() Moreover, glaucoma can develop in cases of normal IOP. However, not all people with ocular hypertension develop glaucoma. Often, increased pressure inside the eye (called intraocular pressure or IOP) is detected in glaucoma patients. Glaucoma, one of the leading causes of blindness for people over the age of 60, is caused by optic nerve damage. Distinguished Organziational Affiliations.Artificial & Replacement Organs & Tissues. ![]()
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