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Related Experiment Video

Updated: Aug 13, 2025

Smartphone Fundus Photography

Smartphone Fundus Photography

Published on: July 6, 2017

Virtual-reality headset mounted smartphone-based Indentation fundus videography.

Deependra Vikram Singh¹, Sandhya Gaur¹, Raja Rami Reddy²

¹Vitreoretinal Services, Eye-Q Superspecialty Eye Hospitals, Gurugram, Haryana, India.

Taiwan Journal of Ophthalmology

|January 20, 2023

Summary

This summary is machine-generated.

This study introduces a novel smartphone technique using a VR headset for clear peripheral retinal imaging with indentation. This cost-effective method aids in documenting retinal conditions, especially when widefield photography is unavailable.

Keywords:

Fundus imaging indentation videography peripheral retinal imaging smartphone

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Video Movement Analysis Using Smartphones ViMAS: A Pilot Study

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Published on: March 14, 2017

Area of Science:

Ophthalmology
Medical Imaging
Biomedical Engineering

Background:

Smartphone-based fundus photography has limitations in capturing peripheral retinal images.
Direct ophthalmoscopy and indirect ophthalmoscopy are standard methods, but may require specialized equipment or expertise.
Peripheral retinal examination is crucial for diagnosing various ocular pathologies.

Purpose of the Study:

To present a simple, novel, and cost-effective smartphone-based technique for capturing peripheral retinal images with indentation.
To overcome the limitations of existing smartphone fundus photography methods.
To demonstrate the feasibility of obtaining high-quality peripheral retinal videos using a modified virtual reality headset setup.

Main Methods:

A smartphone with a video camera was mounted on a virtual reality (VR) headset.
The setup was combined with +28D and +20D lenses and a soft cotton bud for retinal indentation.
High-quality videos of the peripheral fundus were captured using the camera's autofocus and examiner's head movements for distance adjustment, mimicking indirect ophthalmoscopy.

Main Results:

The technique successfully captured well-focused retinal images during indentation in 10 eyes.
Demonstrated visualization of peripheral retinal pathologies including laser marks, lattice degeneration, and pigmented lesions.
Achieved high-quality videos of the peripheral fundus with indentation, proving the technique's feasibility.

Conclusions:

Smartphone-based indentation fundus videography using a VR headset is an innovative and cost-effective approach.
This technique facilitates the documentation of peripheral retinal images, particularly in situations where widefield photography is not feasible.
The method shows potential for documenting conditions like retinopathy of prematurity lesions and other peripheral retinal abnormalities.