Intraoperative head drift and eye movement: two under addressed challenges during cataract surgery

Brogan, Kerr; Dawar, Basu; Lockington, David; Ramaesh, Kanna

doi:10.1038/s41433-018-0047-x

Cited by 17 publications

(16 citation statements)

References 27 publications

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“…Before performing an on-body human test, our proof-ofconcept system was non-invasively validated using a custombuilt gaze following system (GFS), as shown in the supplementary (2). Stringent test is required for a contact lens, as discomfort and risk of eye infection must be mitigated before being considered for human use [58].…”

Section: Animatronic Eye Modelmentioning

confidence: 99%

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Spintronic Sensors Based on Magnetic Tunnel Junctions for Wireless Eye Movement Gesture Control

Tanwear

Liang

Liu

et al. 2020

IEEE Trans. Biomed. Circuits Syst.

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The tracking of eye gesture movements using wearable technologies can undoubtedly improve quality of life for people with mobility and physical impairments by using spintronic sensors based on the tunnel magnetoresistance (TMR) effect in a human-machine interface. Our design involves integrating three TMR sensors on an eyeglass frame for detecting relative movement between the sensor and tiny magnets embedded in an in-house fabricated contact lens. Using TMR sensors with the sensitivity of 11mV/V/Oe and ten <1 mm 3 embedded magnets within a lens, an eye gesture system was implemented with a sampling frequency of up to 28 Hz. Three discrete eye movements were successfully classified when a participant looked up, right or left using a threshold-based classifier. Moreover, our proof-ofconcept real-time interaction system was tested on 13 participants, who played a simplified Tetris game using their eye movements. Our results show that all participants were successful in completing the game with an average accuracy of 90.8%.

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Section: Animatronic Eye Modelmentioning

confidence: 99%

“…he studies of eye movements and gestures is of interest to clinical ophthalmologists and psycholinguists [1], [2]. Eye gesture recording enables researchers to study potential eye disorders while performing various dynamic tasks.…”

Section: Introductionmentioning

confidence: 99%

Spintronic Sensors Based on Magnetic Tunnel Junctions for Wireless Eye Movement Gesture Control

Tanwear

Liang

Liu

et al. 2020

IEEE Trans. Biomed. Circuits Syst.

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“…Each of the degrees of freedom has a motion range of ±6 mm. The mean lateral head drift during cataract surgery was reported to be 2.9 mm [6]. In some extreme cases the operating microscope had to be adjusted for to accommodate the head drift [6].…”

Section: A Patient Head Motion Simulatormentioning

confidence: 99%

“…The situation would be even exacerbated in robot-assisted eye surgery if the abrupt rise in the sclera force is not accompanied by appropriate reaction from the robot. The intraoperative head drift during the surgery is among the under addressed challenges in retinal surgery [6].…”

Section: Introductionmentioning

confidence: 99%

Towards securing the sclera against patient involuntary head movement in robotic retinal surgery

Ebrahimi

Urias

Patel

et al. 2019

2019 28th IEEE International Conference on Robot and Human Interactive Communication (RO-MAN)

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Retinal surgery involves manipulating very delicate tissues within the confined area of eyeball. In such demanding practices, patient involuntary head movement might abruptly raise tool-to-eyeball interaction forces which would be detrimental to eye. This study is aimed at implementing different force control strategies and evaluating how they contribute to attaining sclera force safety while patient head drift is present. To simulate patient head movement, a piezoelectric-actuated linear stage is used to produce random motions in a single direction in random time intervals. Having an eye phantom attached to the linear stage then an experienced eye surgeon is asked to manipulate the eye and repeat a mock surgical task both with and without the assist of the Steady-Hand Eye Robot. For the freehand case, warning sounds were provided to the surgeon as auditory feedback to alert him about excessive slclra forces. For the robot-assisted experiments two variants

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“…In light of this, many authors have recommended the use of prior simulation to guide the surgeon in these rare but predictable surgical scenarios, through low-cost surveys of trainee experience, wet and dry laboratory facilities and computer simulation [9][10][11][12][13][14][15][16][17]. Ease of access to a pre-prepared Anterior Vitrectomy Kit with associated adjuncts (AntVitKit) to help with the prompt and appropriate management of VL has been previously described [18].…”

Section: Introductionmentioning

confidence: 99%

Quantifying the real-world cost saving from using surgical adjuncts to prevent complications during cataract surgery

Jamison

Benjamin

Lockington

2018

Eye

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Intraoperative head drift and eye movement: two under addressed challenges during cataract surgery

Abstract: This study objectively demonstrates the under-reported clinical scenario of head drift during cataract surgery. By manipulating the Eyesi we have shown that eye movements reduce the quality of cataract surgery.

Cited by 17 publications

References 27 publications

Spintronic Sensors Based on Magnetic Tunnel Junctions for Wireless Eye Movement Gesture Control

Spintronic Sensors Based on Magnetic Tunnel Junctions for Wireless Eye Movement Gesture Control

Towards securing the sclera against patient involuntary head movement in robotic retinal surgery

Quantifying the real-world cost saving from using surgical adjuncts to prevent complications during cataract surgery

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