Virtual Vitreoretinal Surgical Simulator as a Training Tool

Rossi, J.V.; Verma, Deepak; Fujii, Gildo Y.; Lakhanpal, Rohit R.; Wu, Saisai; Humayun, Mark S.; Juan, Eugene de

doi:10.1097/00006982-200404000-00007

Cited by 74 publications

(63 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The VR simulator provides metrics and scoring at the end of each performed task. These scores correlate with the experience of intraocular surgery indicating construct validity (Rossi et al 2004;Mahr & Hodge 2008;Solverson et al 2009) and VR training can improve capsulorhexis wet-laboratory performance (Feudner et al 2009). Posterior segment VR training has been investigated but little is known regarding the learning curves associated with training on the simulator's anterior segment modules as well as the validity of the simulator's scoring system.…”

Section: Introductionmentioning

confidence: 98%

Virtual reality cataract surgery training: learning curves and concurrent validity

Selvander

Åsman

2010

Acta Ophthalmologica

View full text Add to dashboard Cite

Abstract.Purpose: To investigate initial learning curves on a virtual reality (VR) eye surgery simulator and whether achieved skills are transferable between tasks.Methods: Thirty‐five medical students were randomized to complete ten iterations on either the VR Caspulorhexis module (group A) or the Cataract navigation training module (group B) and then two iterations on the other module. Learning curves were compared between groups. The second Capsulorhexis video was saved and evaluated with the performance rating tool Objective Structured Assessment of Cataract Surgical Skill (OSACSS). The students’ stereoacuity was examined.Results: Both groups demonstrated significant improvements in performance over the 10 iterations: group A for all parameters analysed including score (p < 0.0001), time (p < 0.0001) and corneal damage (p = 0.0003), group B for time (p < 0.0001), corneal damage (p < 0.0001) but not for score (p = 0.752). Training on one module did not improve performance on the other. Capsulorhexis score correlated significantly with evaluation of the videos using the OSACSS performance rating tool. For stereoacuity < and ≥120 seconds of arc, sum of both modules’ second iteration score was 73.5 and 41.0, respectively (p = 0.062).Conclusion: An initial rapid improvement in performance on a simulator with repeated practice was shown. For capsulorhexis, 10 iterations with only simulator feedback are not enough to reach a plateau for overall score. Skills transfer between modules was not found suggesting benefits from training on both modules. Stereoacuity may be of importance in the recruitment and training of new cataract surgeons. Additional studies are needed to investigate this further. Concurrent validity was found for Capsulorhexis module.

show abstract

Section: Introductionmentioning

confidence: 98%

Virtual reality cataract surgery training: learning curves and concurrent validity

Selvander

Åsman

2010

Acta Ophthalmologica

View full text Add to dashboard Cite

show abstract

“…Surgical experience was associated with fewer retinal contacts per average time and shorter membrane peeling time, indicating that training results in better surgical skills and that the vitreoretinal surgical simulator has the potential to evaluate specific surgical skills that are training-related. The Eye-Si simulator also has the capability of training surgeons in new techniques and has the potential to model and simulate surgical scenarios to assist surgeons defining strategies before human intervention [12].…”

Section: Introductionmentioning

confidence: 99%

Effect of Caffeine Intake on Retinal Microsurgical Performance

Arriola-López¹,

Morales-Cantón²,

García-Aguirre³

et al. 2016

J Clin Exp Ophthalmol

View full text Add to dashboard Cite

Objective: To assess the effects of prior caffeine intake on tremor control and internal limiting membrane peeling proficiency of experienced retinal surgeons using a microsurgical simulator. Methods:Experienced vitreoretinal surgeons were included. On two separate days, each subject underwent a test on a level 4 anti-tremor test and internal limiting membrane peeling test on a microsurgical simulator (Eye-Si/ Series 199, VRMagic, Sofware 2.9, Mannheim, Germany) first with no caffeine intake and after 40 minutes of taking an oral dose of caffeine (200 mg and 400 mg). Each subject underwent blood pressure and heart rate measurements before and 40 min after caffeine intake. The same technician measured both surgical performances.Results: Mean age was 46.4 ± 10.1 years. All subjects were male. The mean anti-tremor results were: baseline scores 61.2 ± 19.15, 200 mg 61.6 ± 12.63 and 400 mg 75.4 ± 15.09. The mean internal limiting membrane peeling results were: baseline score 55.9 ± 5.46, 200 mg 54.8 ± 10.05 and 400 mg 62.6 ± 9.63. Blood pressure and heart rate remained stable. After consumption of higher doses of caffeine some adverse effects were reported such as headache and a transient episode of anxiety. Conclusion:Caffeine consumption prior to surgery is discouraged by microsurgeons due to potential adverse effects. Our results showed no significant change on the surgical ability after 200 and 400 mg of oral caffeine. There was a non-significant improvement on the overall score after 400 mg.

show abstract

“…On the other hand, researchers have begun to shift their focus to the study of the effectiveness of using virtual simulators for learning ophthalmic surgery as well as its ability in the transfer of skills, which can evaluated with quantitative measures of proficiency [15,16]. Promising results have been obtained from clinical trials conducted to evaluate and compare the skill level between experts and novices [17][18][19][20]. This paper concerns the development of a low-cost, two-handed virtual surgical training system for learning cataract surgery by phacoemulsification.…”

Section: Introductionmentioning

confidence: 99%

A virtual training simulator for learning cataract surgery with phacoemulsification

Choi¹,

Soo²,

Chung³

2009

Computers in Biology and Medicine

View full text Add to dashboard Cite

This paper presents the development of a low-cost cataract surgery simulator for trainees to practise phacoemulsification procedures with computer-generated models in virtual environments. It focuses on the training of cornea incision, capsulorrhexis and phaco-sculpting, which are simulated interactively with computationally efficient algorithms developed for tissue deformation, surface cutting and volume sculpting.Intuitive two-handed human-computer interactions are achieved with six degrees-offreedom haptic devices. Performance of trainees on manual dexterity is recorded with quantifiable metrics. The proposed virtual-reality system has the potential to serve as an alternative training tool to supplement conventional cataract surgery education.

show abstract

Virtual Vitreoretinal Surgical Simulator as a Training Tool

Abstract: This study demonstrates potential applications of a vitreoretinal surgical simulator as a training and skills assessment tool for novice, inexperienced, and trained surgeons. A simulator can be used to teach specific techniques and train surgeons.

Cited by 74 publications

References 16 publications

Virtual reality cataract surgery training: learning curves and concurrent validity

Virtual reality cataract surgery training: learning curves and concurrent validity

Effect of Caffeine Intake on Retinal Microsurgical Performance

A virtual training simulator for learning cataract surgery with phacoemulsification

Contact Info

Product

Resources

About