Although influenced by CCT, iCare agrees well with applanation tonometers.

In addition to the effect of ageing, the disc size affected the RNFL thickness measured with HRT, whereas the axial length influenced the RNFL thickness and disc area measured with OCT. These variables must be taken into consideration when measuring eyes with the lower or upper boundary of the normal range.

Although CCT values measured with Scheimpflug, US, and NCSM are closely similar, clinicians should keep in mind that these methods are not simply interchangeable.

When an RAPD is clinically detected, the RNFL thickness in the more advanced eyes was in average reduced to about 73% of that in the less advanced.

Intrableb structures after trabeculectomy alone versus AMT-assisted trabeculectomy were distinct. The bleb wall reflectivity in the former and the extent of the subconjunctival fluid-filled space in the latter were factors associated with long-term IOP control.

RAPD was not clinically detected until at least approximately 25% of the retinal nerve fibers were lost when compared with the unaffected eyes. Substantial retinal ganglion cell damage is required for the development of RAPD.

OCT can determine the RNFLT reduction corresponding to the characteristic patterns of optic atrophy of OTS.

No clear difference was found among MD and AGIS/CIGTS scores in expressing functional damage of glaucomatous eyes. MD is suggested to be no worse than others in monitoring glaucoma in clinical setting.