Table 1.

Summary of scan acquisition in all cases, success rates for completing the whole protocol and problems encountered

Case number	Diagnosis	Patient’s age	Patient’s sex	Position of patient	Conscious/unconscious	Scans acquired (n)	Whole protocol achieved?	Problems encountered
1	Post-operative oesophagectomy	55	Male	Sat up	Alert	8	Yes	No problems of note.
2	Sepsis	64	Female	Supine in bed	Unconscious and intubated	3	No	Poor ocular surface, drifting gaze, difficult positioning due to airway.
3	Traumatic brain injury	33	Female	Semi-recumbent in bed	Unconscious and intubated	4	No	Unable to dilate both eyes (to avoid interfering with neurological observations).
4	Toxic epidermal necrolysis (TEN)	39	Female	Semi-recumbent in bed	Semi-sedated and delirious	0	No	Ocular surface involvement of TEN with corneal erosions and delirious patient.
5	Post-operative oesophagectomy	75	Male	Semi-recumbent in bed	Alert	8	Yes	No problems of note.
6	Post-operative oesophagectomy	84	Female	Sat up in chair	Alert	3	No	Patient was scanned upright in a chair with minimal head support.
7	Post-operative oesophagectomy	64	Female	Semi-recumbent in bed	Alert	8	Yes	No problems of note.
8	Traumatic brain injury	36	Male	Semi-recumbent in bed	Unconscious and intubated	3	No	Patient needed eyelids held open, difficulty achieving optimum alignment.
9	Post-operative oesophagectomy	66	Male	Semi-recumbent in bed	Alert	4	No*	Scans were difficult to obtain even with dilation due to poor fixation and the patient’s lack of sleep.
10	Post-operative oesophagectomy	56	Male	Sat up in chair	Alert	6	No*	All scans achieved without dilation.
11	Neutropaenic sepsis	53	Male	Supine in bed	Unconscious	8	Yes	Patient scanned with lids held open. 3 operators were required.
12	Post-operative oesophagectomy	56	Male	Semi-recumbent in bed	Alert	3	No	Patient was amblyopic in the right eye with poor fixation.
13	Post-operative oesophagectomy	58	Male	Sat up in chair	Alert	5	No	Patient was in pain during scans with poor fixation.

*Postoesophagectomy scans were carried out at 24 hours postoperatively in the critical care unit. An asterisk marks where all scans were obtainable at 7 days postoperatively on a normal ward. All patients but one (case 4) had at least one successful scan.