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Thanks for the review. I can understand the advantages on offer from the back/shoulder position point of view. But having to turn your head to one side surely is equally uncomfortable after a long day of operating. Especially if one is using such a big size screen as you have demonstrated in your video, there is always going to be a problem positioning the screen in a position where the microscope arm or other operating room "furniture" are not going to be in the way. I can see the advantage offered when it comes to certain procedures where one could manipulate the image to enhance the contrast between different tissue colors or staining.

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Real need of 3d screen is clearly understood in endoscopy vitrectomy where we loose stereopsis but in standard vitrectomy with help microscope we already have crystal clear stereopsis ?? As per our published work on (3D (Three Dimensional) Picture in Picture (PIP) HDMI Versus 2D (Two Dimensional) Endoscopic Viewing System in IOL Drop .Journal of Retina Vitreous 2015, Volume 23, Number 4, Page(s) 301-307) we highlighted many factors:- with particular focus on various limitations like orientation of the monitor, hand eyes coordination, field of view, quality of images (color/contrast),quality of images during head movement, stereopsis (depth perception),error due to the lack of stereopsis and the head turning problems related to 3d screen etc The surgeon could only accurately place the video monitor in space; as the location of the original image is an unknown. The resultant image on the monitor contains no spatial information of microscopic view, and no concept of hand eyes coordination. Blurring (Motion blurring) is one of the most frequent distortions , which is either caused by rapid movement of the eyeball or patient head movement or head turning of operating surgeon and Issues related Polarized glasses eye strain .Lastly while operating using 3d screen system :- ALERTNESS ISSUE :-while operating is the main concern, Even small movement in Operation room environment or surgical assistant movement causing distraction to operating surgeon. www.retinacentre.com

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