BIOMETRIC INVESTIGATION OF CHANGES IN THE ANTERIOR EYE SEGMENT DURINGACCOMMODATION

Non-invasive biometry of the anterior structures of the human eye can be performed with unprecedented precision of 8-10 mu m and a resolutio n of similar to 9 mu m by partial coherence interferometry, which has the potential to assess the effect of cycloplegia on the ocular compon ents of the anterior eye segment, to further improve the precision to 1-2 mu m by the use of these agents and to quantify the amount of resi dual accommodations in different states of cycloplegia. In addition, t he anterior chamber depth, the thickness of the crystalline lens, thei r changes during accommodation, as well as the movement of the anterio r and posterior lens pole during accommodation can be quantified objec tively and accurately to investigate the mechanism of accommodation. ( C) 1997 Elsevier Science Ltd.