Study/year | Region | Design | Sample size | Mean | Ultrasound brand | Clinical setting | Diagnosis | Etiology | Measurement technique |
---|---|---|---|---|---|---|---|---|---|
Aduayi 2015 [9] | Nigeria | Prospective | 69 | 5.7 | Mindray DC-6 | Mixed | CT | Mixed | 3 mm behind the globe; 3 times per eye; averaged |
Altayar 2020 [10] | Saudi Arabia | Prospective | 28 | 6.6 | Unspecified | ICU | Inv | Trauma | 3 mm posterior to the globe in transverse and sagittal planes in both eyes; average diameter was recorded |
Bhadari 2019 [11] | India | Prospective | 57 | 5.8 | Unspecified | OR | Inv | Hydrocephalus | 3 mm behind the posterior sclera |
Blaivas 2003 [12] | USA | Prospective | 14 | 6.27 | Unspecified | ED | CT | Mixed | 3 mm posterior to the globe for both eyes and then averaged. |
Bäuerle 2011 [13] | Finland | Prospective | 10 | 6.4 | Philips iU22 | Mixed | LP | IIH | 3 mm behind the papilla. Measured 3 times and then averaged. |
Chen 2019 [14] | China | Prospective | 29 | 4.53 | DelicaMVU-6300 | Mixed | LP | Mixed | 3 mm behind the globe; averaged two measurements: one sagittal and the other in the transverse plane |
del Saz-Saucedo 2016 [15] | Spain | Prospective | 19 | 6.76 | Toshiba AplioXG | Mixed | LP | IIH | Transverse plane |
Du 2020 [16] | China | Prospective | 49 | 5.7 | Sonosite | ICU | Inv | Trauma | 3 mm behind the globe; transverse plane; averaged two eyes. |
Geeraerts 2007 [17] | France | Prospective | 15 | 6.3 | HP Sonos 5500 | ICU | Inv | Trauma | 3 mm behind the globe; one sagittal and one transverse |
Goel 2008 [18] | India | Prospective | 73 | 5.8 | Unspecified | Mixed | CT | Trauma | 3 mm behind the globe; one sagittal and one transverse; averaged |
Hanafi 2019 [19] | Iran | Prospective | 62 | 6.06 | SONOSCAPE-SSI 6000 | ED | CT | Trauma | 3 mm posterior to the globe; 3 times on each eye in an axial region; averaged. |
Kimberly 2008 [20] | USA | Prospective | 8 | 5.4 | Sonosite Micromaxx | Mixed | Inv | Mixed | 3 mm posterior to the orbit; axial image; six measurements; averaged. |
Komut 2016 [21] | Turkey | Prospective | 50 | 5.4 | Toshiba Aplio 500 Platinum | ED | CT | Mixed | 3 mm proximal to the optic disc; in transverse and sagittal planes. |
Mohson 2019 [22] | Iraq | Prospective | 40 | 5.6558 | Philips HD11XE | Clinic | LP | Mixed | 3 mm posterior to the globe; transverse. |
Moretti 2009 [23] | Italy | Prospective | 19 | 6.2 | Hitachi EUB 405 | ICU | Inv | Trauma | 3 mm behind the globe; one sagittal and one transverse. |
Nash 2015 [24] | USA | Prospective | 9 | 5.8 | SonoSite M-Turbo | Mixed | Inv | Trauma | 3 mm posterior to the optic disk; longitudinal and transverse. |
Rehman 2016 [25] | Pakistan | Cross-sectional | 13 | 6.61 | Toshiba Xario 200 | Mixed | LP | IIH | 3 mm behind the retina; 3 readings were averaged. |
Shirodikar 2014 [26] | India | Prospective | 35 | 5.43 | Unspecified | Mixed | MRI | Mixed | 3 mm behind the globe; averaging three readings from each eye. |
Tarzamni 2016 [27] | Iran | Prospective | 30 | 5.48 | Aloka Model Prosound 3500 | Mixed | CT | Mixed | 3 mm posterior to the globe; transverse and sagittal; averaged. |
Ussahgij 2020 [28] | Thailand | Prospective | 29 | 5.3 | SonoSite M-Turbo | ED | CT | Mixed | 3 mm posterior. |
Wang 2015 [29] | China | Cross-sectional | 101 | 4.58 | Philips iU22 | Mixed | LP | Mixed | 3 mm posterior to the orbit; transverse and sagittal; repeated twice; averaged |
Zoerle 2020 [30] | Italy | Prospective | 20 | 6.44 | Phillips iE33 | ICU | Inv | Trauma | 3 mm behind the globe; transverse and sagittal; repeated twice; averaged |