Description:1
FORM2
THE PATENTS ACT 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETESPECIFICATION
(Seesection10andrule13)
1. TITLEOFTHEINVENTION
AN AUTOMATIC HANDHELD AND PORTABLE DEVICE FOR DRY EYE ASSESSMENT AND PROGRESSION MEASUREMENT
2. APPLICANT
(i) NAME : GD Goenka University
(ii) NATIONALITY: INDIAN
(iii) ADDRESS : Sohna Gurugram Road, Sohna, Haryana, India,122103
(i) PREAMBLETOTHEDESCRIPTION
COMPLETE
The following specification particularly describes the invention and the manner in which it is to be performed.
5
2
AN AUTOMATIC HANDHELD AND PORTABLE DEVICE FOR DRY EYE ASSESSMENT AND PROGRESSION MEASUREMENT
TECHNICAL FIELD
[1] The present invention relates to an automatic handheld and portable device for dry eye assessment and progression measurement.More particularly, it 5 encompasses a device and method thatanalyzes corneal images, predicts dry eye severity, and provides real-time data on dryness, inflammation, temperature, and humidity, enhancing portable ocular health monitoring.
BACKGROUND
[2] The dry eye assessment and progression measurement device represents a 10 groundbreaking solution in the realm of ocular health. Designed with user convenience in mind, this innovative device offers individuals the ability to independently monitor and track the status of their dry eye condition. Unlike traditional assessment methods limited to professional settings, this portable and handheld device empowers users to measure tear production, tear film stability, 15 and other relevant parameters in real-time. The device utilizes advanced sensor technologies and non-invasive techniques, providing accurate data on the severity and progression of dry eye. With its user-friendly interface and cost-effective nature, this device serves as a transformative tool, bridging the gap between clinical evaluations and at-home care. By putting control in the hands of the user, 20 this device not only enhances proactive management of dry eye symptoms but also contributes to a more inclusive and accessible approach to ocular health.
[3] In response to the escalating prevalence of dry eye syndrome, driven by factors such as increased screen time, environmental conditions, an aging population, medication use, and demanding work schedules, the need for an 25 accessible and accurate tracking device has become paramount. The impact of dry eye on the quality of life for many individuals necessitates a solution that is not only effective but also user-friendly and portable.
3
[4] While various solutions for dry eye assessment exist, ranging from traditional methods to cutting-edge technologies, the majority are designed for use by qualified medical professionals in tertiary eye care centers. These methods include Schirmer's Test, Tear Break-up Time (TBUT), Fluorescein Staining, Osmolarity Testing, Lipid Layer Assessment, Infrared Meibography, Corneal Topography, 5 and Non-Invasive Tear Film Assessment. Although these tools offer valuable insights, their limited accessibility to users and the high cost associated with professional-grade equipment hinder their widespread adoption.
[5] Recognizing the gap in available solutions, there arises the need for an innovative, cost-effective, portable, and user-friendly device that empowers 10 individuals to monitor the progression, improvement, and severity of their dry eye condition independently. Such a device would enable users to take proactive measures in managing their dry eye symptoms and seeking timely professional assistance when needed.
[6] The proposed device seeks to address this unmet need in the market. Unlike 15 existing technologies, it aims to be a healthcare gadget that users can operate themselves, providing real-time data on their dry eye status. The envisioned device would be portable, handheld, and accurate, allowing users to track their condition conveniently. This not only enhances the overall management of dry eye but also encourages proactive self-care. 20
[7] In comparison to alternative devices and equipment currently available, the proposed device stands out for its user-centric design and functionality. By placing the power of dry eye assessment directly into the hands of individuals, it offers a level of autonomy and convenience that is currently lacking in the market. Moreover, the cost-effectiveness of the device makes it a viable solution for a 25 broader demographic, ensuring that dry eye management becomes more inclusive and accessible.
[8] However, to address these problems, in conventional devices the present invention of this user-friendly, portable dry eye assessment device addresses the
4
evolving needs of individuals in the face of increasing dry eye prevalence. Its unique features, coupled with its potential to become an indispensable part of personal healthcare routines, position it as a pioneering solution in the realm of dry eye management. As technology continues to advance, the development and adoption of such innovative devices have the potential to significantly improve 5 the lives of individuals affected by dry eye.
[9] Thus, to overcome these limitations the present invention proposes an automatic handheld and portable device for dry eye assessment and progression measurement. This solution continuous monitoring capability revolutionizes dry eye management by seamlessly integrating into patients' routines, offering 10 valuable real-time data for both users and healthcare providers. This facilitates a deeper understanding of dry eye progression and opens avenues for personalized treatment plans. The device's at-home monitoring reduces healthcare costs, minimizing the need for frequent clinical visits. Personalized treatments based on real-time data improve patient compliance, enhancing overall outcomes. The 15 device's portability adds convenience, making it user-friendly, while immediate feedback enables timely intervention, reducing discomfort. In the age of telemedicine, it serves as a valuable tool for remote consultations, allowing for treatment adjustments based on real-time data. This comprehensive approach contributes to an improved quality of life for individuals dealing with dry eye 20 conditions.
OBJECTIVE OF THE INVENTION:
[10] The present invention has been developed in response to the present state of the art, and in particular, in response to the problems and needs in the art that have not yet been fully solved by currently available techniques and processes. 25
[11] Accordingly, the present invention pertains to an automatic handheld and portable device for dry eye assessment and progression measurement. More particularly, it encompasses a device and method that analyzes corneal images,
5
predicts dry eye severity, and provides real-time data on dryness, inflammation, temperature, and humidity, enhancing portable ocular health monitoring.
[1] The yet one more object of present invention has been developed a device to provide valuable data for both patients and healthcare providers.
[2] Therefore, the current invention successfully overcoming all the above-5 discussed shortcomings present in the art.
[3] The main object of the present invention is to develop the deviceto minimize the need for frequent clinical visits through regular at-home monitoring and less healthcare costs for both patients and the healthcare system.
[4] The main object of the present invention is to develop the deviceto allow 10 healthcare providers to tailor treatments based on individual patient needs and enhance the effectiveness of dry eye management.
[5] The main object of the present invention is to develop the device tofoster patient adherence to treatment plans through active participation in monitoring and improve overall treatment outcomes. 15
[6] Another object of the present invention is to develop for the deviceto enhance accessibility and user-friendliness with a portable monitoring device and enable patients to use the device at their convenience.
[7] Another object of the present invention is to develop for the device toprovide instant feedback on the status of dry eye condition and enable timely intervention 20 to alleviate discomfort.
[8] The main object of the present invention is to develop the device to reduce reliance on subjective patient reports by providing objective measurements and enhance the accuracy and reliability of dry eye assessments.
6
[9] Another object of the present invention is to develop for the device tofacilitate remote consultations through the device's capabilities and allow healthcare providers to assess and guide patients with dry eye issues remotely.
[10] The main object of the present invention is to develop the device to enable healthcare providers to adjust treatment plans based on real-time data and ensure 5 the most effective and efficient care for each patient.
[11] The main object of the present invention is to develop the device to facilitate effective monitoring and early intervention and lead to an improved quality of life for individuals suffering from dry eye, reducing discomfort and vision-related issues. 10
[12] How the foregoing objects are achieved will be clear from the following brief description. In this context, it is clarified that the description provided is non-limiting and is only by way of explanation. Other objects and advantages of the invention will become apparent as the foregoing description proceeds, taken together with the accompanying drawings and the appended claims. 15
SUMMARY
[13] This summary is provided to introduce a selection of concepts in a simplified format that is further described in the detailed description of the invention. This summary is neither intended to identify key or essential inventive concepts of the invention and nor is it intended for determining the scope of the 20 invention.
[14] According to an aspect of the present invention relates to an automatic handheld and portable device for dry eye assessment and progression measurement. The device comprising a Placido disc adorned with concentric black and white rings, ingeniously engineered to illuminate the eye surface. The 25 device further comprisingan infrared camera module, strategically positioned to capture intricate corneal and eye surface images. The device further comprisingan
7
image processor preloaded with baseline data and normative values to analyze acquired images and predict the severity of dry eye. The device further comprisinga display unit, conveying essential data such as dryness, ocular surface inflammation, temperature, humidity, location of measurement, and the temporal variation of dryness following each blink. The device further comprisinga 5 temperature sensor for measuring the ambient temperature at the place of measurement, a humidity sensor to gauge atmospheric moisture, and a GPS sensor for determining the precise location of the assessment.
[15] In an aspect of the invention, the placido disc, illuminated to generates reflections on the corneal surface, and the infrared camera captures images of the 10 corneal surface reflections.
[16] In an aspect of the invention, the infrared camera system continuously monitors dry eye conditions.
[17] In an aspect of the invention, the Placido disc measures time variation of dry eye conditions after each blink for up to 15 seconds, providing an accurate 15 assessment of the dry eye disease condition.
[18] In an aspect of the invention, the Placido disc provides real-time feedback to the user regarding dry eye and surface inflammation conditions.
[19] In an aspect of the invention, a method for assessing and measuring the progression of dry eye using an automatic handheld and portable device. The 20 procedure involves illuminating the eye surface using a Placido disc featuring concentric illuminated black and white rings. Corneal and eye surface images are then captured utilizing an infrared camera module embedded at the center of the Placido disc. The acquired images undergo processing through an image processor preloaded with baseline data and normative values, enabling the 25 analysis and prediction of dry eye severity. The results are presented on a display unit, encompassing parameters such as dryness, ocular surface inflammation, temperature, humidity, location of measurement, and the time variation of dryness
8
following each blink. In addition, the method incorporates the measurement of temperature and humidity at the site of assessment using dedicated sensors, contributing valuable environmental data to the analysis. Furthermore, the device employs a GPS sensor to determine the precise location of the measurement, enhancing the comprehensive evaluation of dry eye progression. The method 5 approach offers a versatile and user-friendly tool for clinicians to objectively assess and monitor dry eye conditions, facilitating more accurate diagnosis and personalized treatment strategies.
[20] In an aspect of the invention, the dry eye assessment is performed by measuring time variation dryness after each blink for up to 15 seconds. 10
[21] In an aspect of the invention, the methodfurther comprising registering and storing location, temperature, and humidity of the place of measurement, and linking acquired data with IoT and cloud computing for remote monitoring by practitioners.
[22] In an aspect of the invention, the dry eye assisting eye care professionals 15 in planning and customizing treatment plans for individuals.
[23] In an aspect of the invention,the dry eye measuring tear breakup time to categorize dry eye conditions.
[24] To further clarify the advantages and features of the present invention, a more particular description of the invention will be rendered by reference to 20 specific embodiments thereof, which is illustrated in the appended drawings. It is appreciated that these drawings depict only typical embodiments of the invention and are therefore not to be considered limiting of its scope. The invention will be described and explained with additional specificity and detail with the accompanying drawings. 25
BRIEF DESCRIPTION OF THE DRAWINGS
9
[25] The accompanying drawings, which are incorporated herein, and constitute a part of this disclosure, illustrate exemplary embodiments of the disclosed methods and systems in which like reference numerals refer to the same parts throughout the different drawings. Components in the drawings are not necessarily to scale, emphasis instead being placed upon clearly illustrating the 5 principles of the present disclosure. Some drawings may indicate the components using block diagrams and may not represent the internal circuitry of each component. It will be appreciated by those skilled in the art that disclosure of such drawings includes disclosure of electrical components, electronic components or circuitry commonly used to implement such components. 10
[26] Figure 1 illustratesa block diagram of an automatic handheld and portable devicein accordance with an embodiment of the invention;
[27] Figure 2 illustrates a top view of an automatic handheld and portable device in accordance with an embodiment of the invention;
[28] Figure 3 illustrates placido rings formed on the corneal surface, in 15 accordance with an embodiment of the invention;
[29] Figure 4 illustrates use of placido disc in other devicesin accordance with an embodiment of the invention.
[30] Further, skilled artisans will appreciate that elements in the drawings are illustrated for simplicity and may not have been necessarily been drawn to scale. 20 For example, the flow charts illustrate the method in terms of the most prominent steps involved to help to improve understanding of aspects of the present invention.Furthermore, in terms of the construction of the device, one or more components of the device may have been represented in the drawings by conventional symbols, and the drawings may show only those specific details that 25 are pertinent to understanding the embodiments of the present invention so as not to obscure the drawings with details that will be readily apparent to those of ordinary skill in the art having benefit of the description herein.
10
DETAILED DESCRIPTION OF EMBODIMENTS
[31] For the purpose of promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawings and specific language will be used to describe the same. It will 5 nevertheless be understood that no limitation of the scope of the invention is thereby intended, such alterations and further modifications in the illustrated system, and such further applications of the principles of the invention as illustrated therein being contemplated as would normally occur to one skilled in the art to which the invention relates. 10
[32] It will be understood by those skilled in the art that the foregoing general description and the following detailed description are explanatory of the invention and are not intended to be restrictive thereof.
[33] Reference throughout this specification to “an aspect”, “another aspect” or similar language means that a particular feature, structure, or characteristic 15 described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of the phrase “in an embodiment”, “in another embodiment” and similar language throughout this specification may, but do not necessarily, all refer to the same embodiment.
[34] The terms "comprise", "comprising", or any other variations thereof, are 20 intended to cover a non-exclusive inclusion, such that a process or method that comprises a list of steps does not include only those steps but may include other steps not expressly listed or inherent to such process or method. Similarly, one or more devices or sub-systems or elements or structures or components proceeded by "comprises... a" does not, without more constraints, preclude the existence of 25 other devices or other sub-systems or other elements or other structures or other components or additional devices or additional sub-systems or additional elements or additional structures or additional components.
11
[35] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skilled in the art to which this invention belongs. The system, methods, and examples provided herein are illustrative only and not intended to be limiting.
[36] The terms “a” and “an” herein do not denote a limitation of quantity, but 5 rather denote the presence of at least one of the referenced items.
[37] The terms “having”, “comprising”, “including”, and variations thereof signify the presence of a component.
[38] Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 10
[39] Referring Figure 1and Figure 2illustrates an automatic handheld and portable device (100) for dry eye assessment and progression measurement.The automatic handheld and portable device (100) for dry eye assessment and progression measurement is a sophisticated tool designed to comprehensively evaluate and monitor dry eye conditions. The device (100) incorporates a placido 15 disc (102) with concentric illuminated black and white rings, strategically positioned to illuminate the eye surface. Embedded at the center of the placido disc (102) is an infrared camera module (108) that captures corneal and eye surface images. These images are processed by an image processor (110) preloaded with baseline data and normative values, enabling the analysis and 20 prediction of dry eye severity.
[40] The device (100) includes a display unit (104) that presents essential data to the user, encompassing dryness, ocular surface inflammation, temperature, humidity, location of measurement, and the time variation of dryness after each blink. To enhance accuracy, the device is equipped with a temperature sensor 25 (114) to measure the environmental temperature at the place of measurement, a humidity sensor (112) to measure humidity levels, and a GPS sensor (116) to determine the location. The placido disc(102), when illuminated, generates
12
reflections on the corneal surface, and the infrared camera captures images of these reflections.
[41] Crucially, the placido disc (102) measures the time variation of dry eye conditions after each blink for up to 15 seconds, providing a precise assessment of dry eye disease. This real-time feedback enables users to be promptly informed 5 about their dry eye and surface inflammation conditions. The infrared camera system (108) continuously monitors dry eye conditions, ensuring ongoing surveillance.
[42] The method for assessing and measuring the progression of dry eye using this device involves illuminating the eye surface with the placido disc, capturing 10 corneal and eye surface images with the infrared camera module, and processing these images with the preloaded image processor. The resulting data is presented on the display unit, including not only dryness and inflammation but also temperature, humidity, location of measurement, and the time variation of dryness after each blink. 15
[43] Additionally, the device facilitates remote monitoring by practitioners through the integration of IoT and cloud computing. It registers and stores location, temperature, and humidity data, linking it with acquired information for a comprehensive overview. This connectivity assists eye care professionals in planning and customizing treatment plans for individuals, leveraging the 20 capability of measuring tear breakup time to categorize dry eye conditions. Overall, this innovative device represents a significant advancement in the field of dry eye assessment, providing both users and practitioners with a holistic and precise understanding of dry eye conditions and their progression.
[44] Referring to Figure 3illustrates placido rings formed on the corneal 25 surface.The Placido rings are a diagnostic tool used in ophthalmology to assess the curvature of the corneal surface of the eye. These rings are generated by a placido disc, which is a device featuring concentric illuminated black and white
13
rings. The disc is placed in front of the eye, and when the eye is properly aligned, the rings are reflected on the corneal surface.
[45] In a normal and adequately lubricated eye just after a blink, the Placido rings appear regular and well-defined on the corneal surface. The rings should be symmetrical, forming a uniform pattern. This regular pattern is indicative of a 5 smooth and moist ocular surface.
[46] However, when dryness starts to affect the ocular surface, the appearance of the Placido rings becomes progressively distorted. Dryness on the corneal surface can disrupt the smoothness of the tear film, leading to irregularities in the reflection pattern of the rings. As shown in the right image, the rings may become 10 fragmented, broken, or distorted, indicating the presence of dry eye conditions.
[47] The distortion of the Placido rings is a visual representation of the impact of dryness on the corneal surface. This phenomenon is often used in diagnostic tools, like the handheld device mentioned earlier, to objectively assess the severity of dry eye conditions. By analyzing the changes in the Placido ring pattern over 15 time, especially after a blink, clinicians can gain insights into the dynamic nature of dry eye and tailor appropriate treatment plans for individuals experiencing this condition. Therefore, monitoring the progression of the Placido ring distortion is a valuable indicator of the evolving state of dryness on the ocular surface.
[48] The Placido disc is a critical component in devices designed for corneal 20 topography, a diagnostic technique used in ophthalmology to map the surface of the cornea. The Placido disc itself is a flat, opaque disc marked with a series of concentric rings or a grid pattern. In corneal topography devices, the Placido disc is incorporated into the system and positioned in front of the patient's eyeas shown in Figure 4. When light is projected onto the cornea, it reflects off the 25 corneal surface and forms a distinct pattern on the Placido disc.
[49] The distorted reflection on the Placido disc provides information about the shape and curvature of the cornea. By analyzing the distortion and changes in the
14
reflected pattern, ophthalmologists can obtain detailed data about the corneal surface, including irregularities, astigmatism, and other abnormalities. This information is crucial for diagnosing various eye conditions, planning refractive surgeries like LASIK, and evaluating the effectiveness of contact lenses.
[50] In summary, the Placido disc plays a pivotal role in corneal topography 5 devices by facilitating the collection of precise and detailed data about the corneal surface, aiding eye care professionals in making accurate diagnoses and treatment decisions.
[51] While certain present preferred embodiments of the invention have been illustrated and described herein, it is to be understood that the invention is not 10 limited thereto. Clearly, the invention may be otherwise variously embodied, and practiced within the scope of the following claims.
15
20
25
15
5
Claims
We claim:
1. An automatic handheld and portable device (100) for dry eye assessment 10 and progression measurement comprising:
a placido disc (102) featuring concentric illuminated black and white rings to illuminate the eye surface;
an infrared camera module(108) embedded at a center of the Placido disc(102) to acquire corneal and eye surface images; 15
an image processor (110) preloaded with baseline data and normative values to analyze acquired images and predict the severity of dry eye;
a display unit (104) to present data including dryness, ocular surface inflammation, temperature, humidity, location of measurement, 20 and time variation of dryness after each blink;
a temperature sensor (114) to measure the temperature at the place of measurement;
a humidity sensor (112) to measure the humidity at the place of measurement; and 25
a GPS sensor(116)to determine the location of the place of measurement.
16
2. The device (100) as claimed in claim 1, whereinthe placido disc(102), illuminated to generates reflections on the corneal surface, and the infrared camera (108) captures images of the corneal surface reflections.
3. The device (100) as claimed in claim 1, whereinthe infrared camera (108) 5 continuously monitors dry eye conditions.
4. The device (100) as claimed in claim 1, wherein the Placido disc (102) measures time variation of dry eye conditions after each blink for up to 15 seconds, providing an accurate assessment of the dry eye disease 10 condition.
5. The device (100) as claimed in claim 1, wherein the Placido disc (102) provides real-time feedback to the user regarding dry eye and surface inflammation conditions. 15
6. A method for assessing and measuring the progression of dry eye using an automatic handheld and portable device, comprising the steps of:
illuminating the eye surface with a Placido disc (102) featuring concentric illuminated black and white rings; 20
acquiring corneal and eye surface images using an infrared camera module (108) embedded at a center of the Placido disc(102);
processing the acquired images using an image processor (110) preloaded with baseline data and normative values to analyze and predict the severity of dry eye; 25
presenting data on a display unit(104), wherein the presented data includes dryness, ocular surface inflammation, temperature, humidity, location of measurement, and time variation of dryness after each blink;
17
measuring the temperature at the place of measurement using a temperature sensor(112);
measuring the humidity at the place of measurement using a humidity sensor(116); and
determining the location of the place of measurement using a GPS 5 sensor(116).
7. The method as claimed in claim 6, wherein the dry eye assessment is performed by measuring time variation dryness after each blink for up to 15 seconds. 10
8. The method as claimed in claim 6, further comprising registering and storing location, temperature, and humidity of the place of measurement, and linking acquired data with IoT and cloud computing for remote monitoring by practitioners. 15
9. The method as claimed in claim 6, wherein the dry eye assisting eye care professionals in planning and customizing treatment plans for individuals.
10. The method as claimed in claim 6, wherein the dry eye measuring tear 20 breakup time to categorize dry eye conditions.
Dated this _________ day of _______, 2023
G D Goenka University, 25 Sohna Gurugram Road, Sohna, Haryana, India,
122103
APPLICANT 30
18
ABTRACT AN AUTOMATIC HANDHELD AND PORTABLE DEVICE FOR DRY 5 EYE ASSESSMENT AND PROGRESSION MEASUREMENT
The present invention relates to anautomatic handheld and portable device (100) for dry eye assessment and progression measurement.The device (100) incorporates a Placido disc (102) with concentric illuminated black and white rings to illuminate the eye surface, coupled with an embedded infrared camera 10 module at its center for acquiring corneal and eye surface images. An image processor(110), preloaded with baseline data and normative values, analyzes the acquired images to predict the severity of dry eye. The device (100) includes a display unit (104) presenting comprehensive data such as dryness, ocular surface inflammation, temperature, humidity, location of measurement, and time variation 15 of dryness post-blink. Additionally, it features sensors for measuring temperature, humidity, and GPS (116) to provide a holistic understanding of environmental conditions during measurements. This handheld device offers a promising and comprehensive solution for efficient dry eye evaluation in a portable and user-friendly manner. 20
Figure 1 and 2
25 , Claims:Claims
We claim:
1. An automatic handheld and portable device (100) for dry eye assessment 10 and progression measurement comprising:
a placido disc (102) featuring concentric illuminated black and white rings to illuminate the eye surface;
an infrared camera module(108) embedded at a center of the Placido disc(102) to acquire corneal and eye surface images; 15
an image processor (110) preloaded with baseline data and normative values to analyze acquired images and predict the severity of dry eye;
a display unit (104) to present data including dryness, ocular surface inflammation, temperature, humidity, location of measurement, 20 and time variation of dryness after each blink;
a temperature sensor (114) to measure the temperature at the place of measurement;
a humidity sensor (112) to measure the humidity at the place of measurement; and 25
a GPS sensor(116)to determine the location of the place of measurement.
16
2. The device (100) as claimed in claim 1, whereinthe placido disc(102), illuminated to generates reflections on the corneal surface, and the infrared camera (108) captures images of the corneal surface reflections.
3. The device (100) as claimed in claim 1, whereinthe infrared camera (108) 5 continuously monitors dry eye conditions.
4. The device (100) as claimed in claim 1, wherein the Placido disc (102) measures time variation of dry eye conditions after each blink for up to 15 seconds, providing an accurate assessment of the dry eye disease 10 condition.
5. The device (100) as claimed in claim 1, wherein the Placido disc (102) provides real-time feedback to the user regarding dry eye and surface inflammation conditions. 15
6. A method for assessing and measuring the progression of dry eye using an automatic handheld and portable device, comprising the steps of:
illuminating the eye surface with a Placido disc (102) featuring concentric illuminated black and white rings; 20
acquiring corneal and eye surface images using an infrared camera module (108) embedded at a center of the Placido disc(102);
processing the acquired images using an image processor (110) preloaded with baseline data and normative values to analyze and predict the severity of dry eye; 25
presenting data on a display unit(104), wherein the presented data includes dryness, ocular surface inflammation, temperature, humidity, location of measurement, and time variation of dryness after each blink;
17
measuring the temperature at the place of measurement using a temperature sensor(112);
measuring the humidity at the place of measurement using a humidity sensor(116); and
determining the location of the place of measurement using a GPS 5 sensor(116).
7. The method as claimed in claim 6, wherein the dry eye assessment is performed by measuring time variation dryness after each blink for up to 15 seconds. 10
8. The method as claimed in claim 6, further comprising registering and storing location, temperature, and humidity of the place of measurement, and linking acquired data with IoT and cloud computing for remote monitoring by practitioners. 15
9. The method as claimed in claim 6, wherein the dry eye assisting eye care professionals in planning and customizing treatment plans for individuals.
10. The method as claimed in claim 6, wherein the dry eye measuring tear 20 breakup time to categorize dry eye conditions