Contact between 3 phakic intraocular lens models and the crystalline lens: An anterior chamber optical coherence tomography study

Abstract

Three phakic intraocular lens (IOL) models were implanted in 3 different patients. With the usual slitlamp examination, it was not possible to determine whether there was contact between the IOLs and the natural crystalline lens. Using the anterior chamber optical coherence tomography (AC OCT) scanner, direct contact between the natural crystalline lens and the 3 phakic IOLs was revealed. A dynamic study of the contact was performed during accommodation. These observations show that examination of the anterior segment with the AC OCT scanner provides new data about the status of the anterior segment after implantation of phakic IOLs.

Three-year follow-up of subjective vault following myopic implantable collamer lens implantation

“…The most common concerns regarding post-operative ICL complications related to vault value include anterior subcapsular cataract (ASC) [8][9][10][11] and increased intraocular pressure (IOP) [12][13][14], presumably as a result of mechanical contact of ICL with the anterior lens capsule or angle closure, respectively. Furthermore, it has been reported that vault has a tendency to decrease over time [9,10,15,16], leading to an increased risk of cataract formation [10,17,18]. These facts, along with physiologic increase of lens thickness with age [19] and anterior displacement of the lens during accommodation [20], make clinical assessment of vault and follow-up of these patients over time an important part in the evaluation of long-term safety of ICL.…”

In vivo imaging of posterior capsule opacification using Spectral Optical Coherence Tomography

“…[9][10][11][12][13][14] This technology was used for imaging phakic IOLs 10,11 and assessing capsular block syndrome 12 and capsule closure after cataract surgery, 13 as well as evaluating calcification of a hydrogel IOL. 14 However, commercially available instruments based on conventional TdOCT have 2 main disadvantages: limited resolution and relatively long acquisition time.…”

Anterior Eye Imaging with Optical Coherence Tomography

“…Yet a third type of phakic IOL is placed in the posterior chamber, between the iris and the natural lens. Although OCT cannot be used to measure the width of the ciliary sulcus space in the posterior chamber, it is useful to measure the consequence of poor sizing, such as contact with the natural lens (no vaulting) or excessive vaulting that cause chafing of the iris and pigment dispersion [94].…”