Through the Lens of Innovation: Exploring Augmented Reality’s Role in Transforming Ophthalmology

A virtual reality (VR) headset is a head-mounted device which completely covers the eyes and provides a heads-up display capable of generating an immersive three-dimensional experience. Although VR devices have been around since the late 1970s, their uptake as consumer devices has only increased rapidly in recent years, with around 12.5 million units sold worldwide in 2021. The existing landscape of VR gadgets predominantly caters to isolated, time-limited activities, particularly in the gaming sphere. However, the introduction of Apple's VisionPro and Meta's Quest 3 headset marks a pivotal shift in the domain of consumer-focused mixed reality (MR) encounters. As the adoption of these devices grows, it is essential to consider their implications for ophthalmology and ocular health. AN ABUNDANCE OF POTENTIAL VR devices, with their multitude of sensors and high-definition displays, have significant promise in the field of ophthalmology. To date, VR has significantly contributed to three key arenas of ophthalmology: therapeutics, diagnostics and surgical aids. One of the foremost applications of spatial computing is that it can offer considerable benefits for surgical applications and training. VR simulators, such as Eyesi (VRmagic, Mannheim, Germany) and MicroVisTouch (ImmersiveTouch, Chicago, IL, USA), have already become routine training tools for microsurgical techniques employed in numerous ophthalmology education programmes.1,2 By providing aspiring ophthalmologists with the opportunity to rehearse complex procedures in lifelike virtual environments, students can acquire practical skills in a safe and controlled setting. In therapeutics, spatial computing capabilities allow for the creation of immersive environments tailored for vision training, assisting individuals with visual impairments in refining their visual acuity, depth perception and hand–eye coordination. VR tools can be instrumental in preventing and managing myopia by effectively mimicking outdoor environments while controlling light intensity and spectral composition. VR devices exhibit strong promise as a treatment modality. In diagnostics, MR-capable devices can be used regularly outside the clinical setting, allowing for at-home diagnosis and monitoring of ophthalmological conditions. Exploiting the functionalities of spatial computing can allow individuals to manage their eye health, identify initial indicators of vision-related disorders and consult healthcare professionals as needed. Recent studies have reported the possibility of monitoring glaucoma and tracking visual field loss over time via virtual visual field testing at home.3 This signifies the potential of VR technologies in facilitating home-based eye diagnostics. AN APPEAL FOR PRUDENCE It is imperative to recognise that prolonged exposure to VR environments can have adverse impacts on eye health. Extended periods under artificial light, notably the blue light emitted by VR devices, have been associated with various eye conditions, from digital eye strain to dry eye syndrome and fatigue. Research indicates that excessive blue light exposure may disrupt sleep patterns and potentially elevate the risk of eye diseases like age-related macular degeneration. Moreover, the visual limitations of many VR devices could paradoxically exacerbate issues like myopia and accommodation difficulties. These concerns are compounded by users' tendency to blink less frequently during immersive experiences. In addition, the broader health implications of excessive screen time, such as the correlation with attention defecit hyperactivity disorder risk among youth populations, warrant careful consideration in the context of VR usage. Cybersickness, which is a constellation of motion sickness-like symptoms, has been well documented as it relates to the virtual environment. The fidelity and accuracy of the VR/augmented reality (AR) technology is fundamental due to the high-precision nature of ophthalmology. Enhanced research addressing the evolving user interactions with AR/VR gadgets, coupled with effective public health messaging, is indispensable for preserving user well-being amidst the growing integration of these devices into everyday routines. CONCLUSION Ophthalmologists are pivotal in comprehending and tackling the ocular health impacts stemming from prolonged VR immersion. It is our duty to delve deeper into research to grasp the enduring ramifications of VR utilisation and to craft guidelines grounded in evidence for its secure and prudent integration within clinical practice. In conclusion, the rising ubiquity of MR encounters underscores the importance of grasping their implications on eye health. By recognising both their benefits and drawbacks, eye specialists can steer individuals, creators and decision-makers towards a judicious and secure utilisation of MR/VR technologies. Through ongoing exploration, enlightenment and cooperation, we can leverage the revolutionary potential of spatial computing while upholding the invaluable asset of vision.