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Feasibility of Imaging Using Portable Ultrasound Device (USD) and
Mobile Phone for Point-of-care Diagnosis in Ophthalmic Patients
Hadi Khazaei
*1
, Kaneez Abbas
1
, Danesh Khazaei
2
, Sahil Ameen
3
, Josephine Nonye Ubah
4
, Bala
Balaguru
1
1
Athreya MedTech
2
Portland State University
3
Raja Rajeshwari Medical College, India
4
Osun State University, Nigeria
*Corresponding Author
DOI: https://dx.doi.org/10.51244/IJRSI.2025.12110110
Received: 04 December 2025; Accepted: 10 December 2025; Published: 16 December 2025
ABSTRACT
Medical imaging is important in clinical diagnosis and the individualized treatment of eye diseases. Ultrasound
imaging is one of the most prominent technologies for evaluating the orientation, anomalies, and anatomical
features of the eye and orbit. However, the interpretation of the data obtained from such studies is best left to
expert physicians and technicians who are trained and well-versed in analyzing such images. This technology
can provide high-resolution information regarding anatomic and functional changes. In recent years, imaging
techniques have developed rapidly, along with therapeutic advances. However, with the increasing
sophistication of imaging technology, comprehension and management of eye disease has become more
complex due to the large numbers of images and findings that can be recorded for individual patients, as well
as the hypotheses supported by these data. Thus, each patient has become a “big data” challenge. Conventional
diagnostic methods depend greatly on physicians’ professional experience and knowledge, which can lead to a
high rate of misdiagnosis and wastage of medical data. The new era of clinical diagnostics and therapeutics
urgently requires intelligent tools to manage medical data safely and efficiently.
Keywords: Point-of-care ultrasound (POCUS), Ophthalmic imaging, Portable ultrasound, Mobile phone
diagnosis, Teleophthalmology
INTRODUCTION
Using portable ultrasound devices in conjunction with mobile phones for point-of-care diagnosis in ophthalmic
patients could indeed expedite healthcare delivery, especially where access to specialized healthcare facilities
may be limited. Here's an assessment of the feasibility:
1. Cost-effectiveness: Portable ultrasound devices are becoming increasingly affordable, and many models
are designed for point-of-care use. Since most healthcare workers already possess smartphones,
combining the two could be cost-effective compared to traditional ophthalmic imaging equipment. This
approach also saves the patient and their relatives time and money travelling to areas with conventional
imaging equipment.
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2. Accessibility: Portable ultrasound devices are lightweight, easily transportable, and don't require a
dedicated power source, which is a major advantage in areas with limited infrastructure. Given that
mobile phones are ubiquitous, even in remote areas, this technology is readily accessible.
3. Ease of use: Many portable ultrasound devices are designed to be user-friendly, requiring minimal
training for healthcare workers to operate. Mobile phone applications can further simplify the process
by providing intuitive interfaces for image acquisition and analysis.
4. Remote consultation: By capturing images using a mobile phone, healthcare workers can transmit them
to specialists for remote consultation. This enables timely diagnosis and management recommendations
without the need for patients to travel long distances.
5. Diagnostic capabilities: While portable ultrasound devices may not offer the same level of detail as
specialized ophthalmic imaging equipment like optical coherence tomography (OCT), they can still
provide valuable information for diagnosing conditions such as cataracts, retinal detachments, retained
intraocular foreign bodies, and ocular trauma. For certain conditions, such as assessing optic nerve
head cupping in glaucoma, ultrasound may even be preferred over other imaging modalities.
6. Challenges: There are challenges to consider, such as ensuring the reliability and accuracy of imaging
performed by individuals with varying levels of training. Additionally, internet connectivity may be
unreliable in remote areas, limiting the ability to transmit images for remote consultation. Power
outages, experienced frequently in some developing countries like India and Nigeria, are also a
challenge.
7. Healthcare delivery: The point-of-care diagnosis with portable ultrasound and smartphone for ocular
sonography will improve overall healthcare delivery and create awareness of the alternative, compared
to existing but inadequate diagnostic centers. Presently, very few people (in a study conducted in
Nigeria) are aware of telemedicine, but many are willing to pay for it when it becomes available.
Teleconsultation and telementoring are already being practiced by many healthcare providers in
Nigeria. Point -of -focus ultrasonography is an innovation that will greatly enhance ophthalmic practice
in the country.
Overall, while there are challenges to address, the use of portable ultrasound devices in conjunction with
mobile phones holds promise for expediting healthcare delivery and improving access to ophthalmic care
(especially in developing countries where ultrasound services may not be readily available). Collaboration
between healthcare providers, technology developers, and policymakers will be essential to maximize the
potential of this approach.
In many regions across the globe, access to specialized healthcare services remains a challenge, particularly in
remote areas. This limitation is especially pronounced in ophthalmic care, where timely diagnosis and
management are crucial for preventing irreversible vision loss. However, amidst these challenges,
technological innovations offer a beacon of hope in the form of portable ultrasound devices coupled with
ubiquitous mobile phones. By harnessing the power of these technologies, healthcare delivery can be
expedited, bridging the gap between patients and essential ophthalmic services. Portable ultrasound devices
have emerged as versatile tools for point-of-care diagnosis, offering convenience, affordability, and portability.
Coupled with the widespread availability of mobile phones, this combination presents a unique opportunity to
revolutionize ophthalmic care delivery. This paper explores the feasibility and potential impact of leveraging
portable ultrasound devices in conjunction with mobile phones for point-of-care diagnosis in ophthalmic
patients, with a specific focus on expediting healthcare delivery.
The Rural Setting
In the Indian rural context, for example, the integration of portable ultrasound devices with mobile phones has
particular relevance for preventing avoidable blindness. Large segments of the population in remote villages
present late with advanced ocular disease, often due to lack of nearby specialist services, long travel distances,
and the financial burden associated with seeking care at tertiary centers. Many of these conditions, including
advanced cataract, vitreous hemorrhage, retinal detachment, or occult ocular trauma, can lead to irreversible
visual impairment if not detected and treated promptly. A point-of-care ophthalmic ultrasound device,
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deployed at primary health centers, vision centers, or during community outreach camps, offers a practical
means to identify sight-threatening pathology early and to intervene before blindness becomes permanent. This
is particularly important in India, where the social and economic consequences of preventable blindness extend
beyond the individual to entire families who depend on a single wage earner.
Emotional and Community Impact
The emotional impact of preventable blindness in rural communities underscores the urgency of timely
diagnosis. Patients who lose vision in one or both eyes due to conditions that could have been detected earlier
frequently experience profound psychological distress, loss of independence, and reduced quality of life. Point-
of-care ultrasonography provides an opportunity to change this narrative by enabling rapid, bedside assessment
of the eye in patients who may not have immediate access to an ophthalmologist. When a rural community
health worker detects a treatable condition and initiates a prompt referral, it not only preserves vision but also
builds trust in the health system and reinforces the value of early presentation.
Primary Aim of the Endeavor
The primary aim of this endeavor is to address the pressing need for timely and accurate diagnosis of
ophthalmic conditions, which often require specialized imaging modalities such as optical coherence
tomography (OCT) or ultrasound biomicroscope (UBM). However, these modalities are typically confined to
tertiary healthcare facilities, leaving many patients in underserved regions without access to essential
diagnostic services. By integrating portable ultrasound devices with mobile phones, healthcare providers can
bring diagnostic capabilities directly to the point of care, whether it be a rural clinic, a community health
center, or even a patient's home. This paradigm shift not only reduces the burden on centralized healthcare
facilities but also empowers frontline healthcare workers to make informed clinical decisions in real-time.
Furthermore, the synergy between portable ultrasound devices and mobile phones facilitates remote
consultation and collaboration with ophthalmic specialists. Through telemedicine platforms, images captured
on a mobile phone can be securely transmitted to experts for interpretation, enabling timely diagnosis and
management recommendations. This remote support system is particularly valuable in regions where access to
specialized care is limited, allowing patients to receive expert guidance without the need for costly and time-
consuming travel.
Figure 1. Traumatic cataract
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Figure 2. Retinoblastoma
METHODOLOGY
There are different ways of performing ultrasound-based diagnostic procedures. Depending on the application,
the sonographer acquires either a single image or an image series. The second approach is better when a further
automated image processing step is introduced. Simultaneous analysis of multiple data sets provides reliable
results, less prone to artifacts and outliers. At the same time, the analysis of the entire recording might be
disturbed by strongly distorted data or artifacts influencing the geometry of visualized structures, appearing in
part of the frames. Consequently, it leads to misclassification, false-positive detections, and finally, inaccurate
results of measurements. Therefore, the overall goal of this study was to develop and evaluate the classification
framework, which enables robust and fast POCUS series analysis.
Ocular ultrasonography in the ambulatory and critical care setting has become an invaluable diagnostic tool for
patients presenting with traumatic or atraumatic vision and ocular complaints. Sonographic bedside evaluation
is intuitive and easy to perform and can accurately diagnose a variety of pathologies. These include detachment
or hemorrhage of the retina or vitreous, lens dislocation, retrobulbar hematoma or air, as well as ocular foreign
bodies, infections, tumors, and increased optic nerve sheath diameter that can be assessed in the setting of
suspected increased intracranial pressure. The ocular anatomy is easy to visualize with sonography, as the eye
is a superficial structure filled with fluid. Over the last two decades, several scientific publications have
documented that ocular ultrasound in emergent or critical care settings is an accurate diagnostic tool and
expands and improves emergency diagnosis and management.
There is an abundance of ultrasound datasets for various use-cases, which can be used to generate DNN-based
models for classification and segmentation. For instance, the breast ultrasound image dataset presented by Al-
Dhabyani et al. (Al-Dhabyani et al., 2020), which is composed of normal, benign, and malignant images that
can be used to train a model to act as a classifier. Similarly, the POCUS dataset, presented by Born et al. (Born
et al., 2020), and the COVIDX-US dataset, by Ebadi et al. (Ebadi et al., 2021), are openly accessible for
building DNN-based clinical assistants that can aid in the analytics and diagnosis of COVID-19. Leclerc et al.
(Leclerc et al., 2019) presented a cardiac ultrasound electrocardiography dataset containing image sequences
with two and four-chamber views of the heart of 500 patients. Likewise, there are a wide number of ultrasound
datasets for diagnosing and analyzing several internal body organs.
Recent surveys of machine learning (ML) for medical imaging, such as [1], [2], [3], [4], primarily focus on
computerized tomography (CT), magnetic resonance imaging (MRI), and microscopy. In this review, we focus
on the use of ML in USD. The objective of this paper is to review how recent advances in ML have helped
accelerate ultrasound image analysis adoption by modeling complicated multidimensional data relationships
that answer diagnosis and disease severity classification questions. We have two goals: (1) to highlight
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contributions that utilize ML advances to solve current challenges in medical USD, (2) to discuss future
opportunities that will utilize ML techniques to further improve clinical workflow and USD-based disease
diagnosis and characterization.
The effort and domain expertise involved in handcrafting features have led researchers to seek algorithms that
can learn features automatically from data. Deep learning (DL) is a particularly powerful tool for extracting
nonlinear features from data. This is particularly promising in USD where predictable acoustic patterns are
typically neither obvious nor easily hand-engineered. The figure below illustrates high-level differences
between conventional ML and DL. The fast adoption of DL has been enabled by faster algorithms, more
capable Graphics Processing Unit (GPU)-based computing, and large data sets.
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Standard operating procedure for orbital ultrasonography:
1) Complete the consent and authorization form
2) Clean and prepare the site of interest and the ultrasound probe
3) Apply sterile coupling agents to the ultrasound probe headpiece
4) Connect the probe to the mobile device and launch the app
5) Select the appropriate preset to start scanning
a. Horizontal linear scan (medial orientation) - adjust depth and ΔTGC
b. Vertical linear scan (superior orientation) - adjust depth and ΔTGC
c. Lateral vertical oblique scan (Ossoinig technique + Doppler) - optic nerve assessment
d. Horizontal linear (Lacrimal gland) scan - volumetric and ΔTGC
6) 3D scan/Cine recording of orbit
Figure 3: Orbital ultrasonography instructional diagram (Created with BioRender.com) (1).
DISCUSSION
AI Integration and Improved Access
In austere environments, such as remote or under-resourced regions, accessing specialized healthcare services,
particularly for ophthalmic conditions, presents significant challenges. Timely diagnosis of ophthalmic
disorders is essential for preventing irreversible vision loss, yet traditional diagnostic tools may be scarce or
inaccessible in these settings. However, integrating artificial intelligence (AI) with ultrasound technology
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offers a promising solution to enhance early detection and diagnosis. This paper explores the potential of AI-
assisted ultrasound in improving the detection of ophthalmic disorders in austere environments, thereby
facilitating timely interventions and mitigating the burden of vision impairment.
Ophthalmic disorders encompass a wide range of conditions, including cataracts, glaucoma, diabetic
retinopathy, and retinal detachments, among others. Early detection is critical for initiating appropriate
treatment and preventing disease progression. However, in austere environments where access to specialized
equipment and trained healthcare professionals is limited, patients often face delays in diagnosis and treatment,
leading to adverse outcomes.
Ultrasound imaging has emerged as a valuable tool for ophthalmic diagnosis, offering portability, affordability,
and versatility. In austere environments, where traditional imaging modalities may be unavailable, handheld
ultrasound devices provide a feasible solution for visualizing ocular structures and detecting abnormalities. By
leveraging AI algorithms trained on large datasets of ophthalmic ultrasound images, these devices can enhance
diagnostic accuracy and empower frontline healthcare providers to identify ophthalmic disorders with greater
confidence.
The integration of AI with ultrasound technology enables real-time analysis of ultrasound images, allowing for
automated detection of pathological features indicative of various ophthalmic conditions. AI algorithms can
distinguish between normal and abnormal findings, flagging suspicious findings for further evaluation by
healthcare providers. This augmentation of diagnostic capabilities is particularly valuable in austere
environments where access to ophthalmologists or specialized training is limited, enabling non-specialist
healthcare workers to make informed clinical decisions.
Humanitarian and Operational Impact
The deployment of smartphone-based portable ultrasonography in rural demographics addresses the critical
humanitarian and economic crisis of preventable blindness. In regions such as rural India, where a significant
portion of the population relies on agricultural or daily wage labor, the irreversible loss of vision in a family
member creates a catastrophic ripple effect on household financial stability. By relocating diagnostic capacity
from tertiary centers to the village level, this technology knocks down the distance barrier that frequently leads
to delayed presentation. The ability to detect treatable pathologies like vitreous hemorrhage or mature cataracts
at the primary care level transforms a potential lifetime of disability into a manageable medical event, thereby
preserving both individual independence and community economic resilience.
Furthermore, the operational value of this technology lies in its ability to refine emergency triage protocols
within tiered healthcare systems. In the presence of opaque media, where traditional ophthalmoscopy fails,
portable ultrasound provides immediate visualization of the posterior segment to rule out sight-threatening
emergencies such as retinal detachment or intraocular foreign bodies. This capability ensures that patients
requiring urgent surgical intervention are prioritized for immediate transfer, while those with non-urgent
conditions can be managed locally or referred routinely. By arranging patient care based on need, the available
specialist expertise is maximized. This approach guarantees that urgent eye conditions are treated within the
critical time frame, significantly reducing the chances of irreversible blindness.
Furthermore, AI-assisted ultrasound facilitates remote consultation and collaboration with ophthalmic experts.
Images acquired in austere environments can be transmitted securely to centralized facilities or specialist
centers, where trained professionals can provide interpretation and guidance. This telemedicine approach
enables timely diagnosis and management recommendations, bridging the gap between underserved
communities and specialized care providers.
In conclusion, the convergence of portable ultrasound devices and mobile phones holds immense potential to
expedite healthcare delivery and improve access to ophthalmic diagnosis. By embracing these technologies,
stakeholders in the healthcare ecosystem can pave the way for a more inclusive and efficient healthcare system,
ultimately enhancing the quality of life for ophthalmic patients across the country.
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The integration of AI-assisted ultrasound technology holds tremendous promise for improving the early
diagnosis of ophthalmic disorders in austere environments. By enhancing the diagnostic capabilities of
frontline healthcare providers and facilitating remote collaboration with specialists, AI-assisted ultrasound has
the potential to revolutionize ophthalmic care delivery, ultimately reducing the burden of vision impairment
and improving patient outcomes in challenging settings.
Challenge
Ultrasound images of the eye are challenging to use with Machine Learning (ML) because such images are
often fuzzy and lack prominent, distinct features. ML requires thousands, or even tens of thousands, of images
for robust training purposes. The primary challenge is creating such a large collection of high-quality
ultrasound images without involving thousands of patients, which currently makes the task of building a purely
automated diagnostic system difficult.
However, should our efforts prove unsuccessful in creating fully automated diagnostic software, we can pivot
to developing a semi-automated interactive system. In this setup, eye specialists would actively participate,
contributing their domain knowledge to guide the process and make the system more effective.
CONCLUSIONS
AI-powered ocular Ultrasound for Early Detection of Eye Disorders is a promising research direction that can
potentially improve the accuracy, efficiency, and accessibility of ocular ultrasound diagnosis. It can also help
prevent or delay the progression of eye disorders and preserve the visual function of the patients. However,
there are also some challenges and limitations that need to be addressed, such as the availability and quality of
ocular ultrasound data, the generalization and validation of AI models, the ethical and legal implications of AI
applications, and the integration and acceptance of AI systems in clinical practice.
Declaration of Helsinki:
This review adheres to the ethical principles outlined in the Declaration of Helsinki as amended in 2013.
(https://www.wma.net/what-we-do/medical-ethics/declaration-of-helsinki/).
Conflict of interest: The corresponding author(H.KH) is a Research scholar and visiting professor, Division of
Oculofacial Plastic, Orbital, and Reconstructive Surgery, Oregon Health and Science University, Portland,
Oregon, and Department of Mechanical Engineering/Portland State University.
Authors’ contribution Acknowledgement:
All the concerned authors jointly edited and approved the final manuscript. The authors thank Dr. Kaneez
Abbas for her critical feedback and assistance in developing the search strategy and for proofreading.
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