anterior serment oct (AS-OCT)

Group 1 :  SS (Swept source) FF (Full field) Anterior segment AS-OCT – images entire width of AS, including both anterior segment angles (width of field 12 -16 mm), this  allows to measure the position of structures within the anterior segment (using frontal plane as reference)

Topcon  – DRI OCT Triton  

Heidelberg Engineering  –  Anterion

Zeiss – Plex Elite 9000

Tomey  –  Cassia 2 (Swept-source AS-OCT and Placido) 

CSO –  MS-39  

Group 2 : “Anterior Angle OCT” – images only one anterior angle at the time (width of field 6-8mm), this does not allow to measure the position of structures within the anterior segment (using frontal plane as reference )

Optovue –  RTVue / Avanti / AngioVue

Nidek – RS 3000 OCT retina scan   

Consider following criteria, when you buy AS-OCT: 

Width of field  (6, 8, 12, 16 mm) - can you measure horizontal distances such as WTW, STS, RTR, ITI 

Depth of field (all AS in one image or not) - can you measure vertical distance such as ACD, RD, ID 

(SS) Swept source vs (SD) Spectral domain - affects resolution

Speed of imaging (60, 75,100,200 or more kHz)  – affects resolution  

Wavelength (around 850nm or 1050nm) – affects resolution and depth of field

Is the instrument Mobile ?  Do you need to use it in satellite offices ?

Price  (basic module, add-ons, after trade-in)