Development of portable device (non-contact device) for measurement of eye pressure in glaucoma patients for usage at home
ABSTARCT :
Background: Glaucoma is a leading cause of blindness worldwide, and managing intraocular pressure (IOP) is crucial for preventing disease progression. Description: Traditional methods of measuring IOP, such as Goldmann applanation tonometry, require direct contact with the eye, topical anaesthesia, and skilled personnel, making them less accessible for regular monitoring.
Non-contact methods, such as air-puff tonometry, offer a more convenient alternative but are often limited to clinical settings due to their size and cost. Expected Solution: Problem statement is to develop a cost-effective, portable, and non-contact device that can measure IOP accurately and reliably with safety. This device should be easy to use, and allowing patients to use at home.
EXISTING SYSTEM :
Many tonometry devices have been developed, each with applications in different clinical settings. Recent advances have aimed to address the biomechanical properties of the cornea, such as central corneal thickness (CCT) and corneal curvature, as they may confound accuracy.
The most commonly used tonometers and their advantages and limitations are described here in detail. Goldmann applanation tonometry (GAT) currently is the gold standard, to which all other tonometers are compared.
We also focus on new 24-hour IOP monitoring devices and methods, developed recently to record daily fluctuations especially during the nocturnal period.
DISADVANTAGE :
Accuracy and Reliability: Non-contact methods, such as air puff tonometry, may not provide the same level of accuracy as traditional methods like applanation tonometry. Inconsistent readings can lead to mismanagement of the condition.
User Error: Home use relies on patients correctly operating the device. Misinterpretation of instructions or incorrect usage could result in inaccurate measurements, leading to false reassurance or unnecessary anxiety.
Calibration and Maintenance: Portable devices may require regular calibration to maintain accuracy, which could be a barrier for users. Patients might struggle with maintenance, leading to potential errors in measurements.
Cost: High-quality, reliable devices may be expensive for patients to purchase, limiting accessibility. Insurance coverage for such devices can also be inconsistent.
PROPOSED SYSTEM :
At its core, the device employs advanced measurement technology, such as air puff tonometry or optical coherence tomography, to accurately assess intraocular pressure without direct contact.
The user interface features a clear, high-resolution LCD screen that displays real-time measurements and historical data, complemented by simple navigation buttons or a touchscreen for ease of use.
A robust data management module enables storage of past measurements, allowing users to track their eye pressure over time. Connectivity is enhanced through Bluetooth and Wi-Fi capabilities, enabling seamless syncing with a dedicated companion app that helps patients manage their data and share it with healthcare providers.
Powering the device is a rechargeable lithium-ion battery designed for long life and efficiency. Together, these components create a user-friendly, reliable tool that empowers glaucoma patients to take charge of their eye health from the comfort of their homes.
ADVANTAGE :
Convenience: Patients can measure their eye pressure at home, reducing the need for frequent visits to eye care professionals, which can be time-consuming and costly.
Regular Monitoring: Home devices allow for more frequent measurements, enabling better tracking of eye pressure fluctuations over time. This can lead to timely interventions if there are significant changes.
Early Detection: Frequent home monitoring may facilitate early detection of potential problems, allowing for quicker adjustments in treatment plans before significant damage occurs.
Non-Invasive: Non-contact measurement methods, like air puff tonometry, are generally painless and do not require direct contact with the eye, making the process more comfortable for patients.
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