Posters

The effect of a high or low vault after EVO-ICL implantation on anterior chamber structures and complications

Poster Details

First Author: X.Wang CHINA

Co Author(s):    X. Wang   M. Li   X. Chen   X. Zhou           

Abstract Details

Purpose:

To investigate the effect of a high or low vault after EVO-ICL implantation on anterior chamber structures and complications.

Setting:

Eye &ENT Hospital of Fudan University, shanghai, China.

Methods:

Fifty patients (90 eyes) who underwent EVO-ICL implantation from January 2015 to December 2017were selected. Based on the vaults measured 1 month after implantation, the patients were divided into low vault group ( below 250μm), medium vault group (250μm to 750μm) and high vault group ( above 750μm). Anterior chamber angle(ACA), anterior chamber depth(ACD), anterior chamber volume(ACV), intraocular pressure (IOP) and lens density were measured before and 1 month, 6 months, 1 year and 5 years after surgery. Vault height was also measured at each follow up.

Results:

There were significant differences between the high vault group and the medium vault group in ACA, ACD and ACV during the follow-up period, but there were no significant differences between the high vault and the medium vault group in IOP. There were no significant differences between the low vault group and the medium vault group in lens density 1 month, 6 months and 1 year after implantation while the difference was significant as the lens density of low vault group higher than medium vault group 5 years after surgery.

Conclusions:

ICL implantation can narrow the anterior chamber angle and decrease the anterior chamber volume. A vault higher than 750 μm doesn’t have a significant effect on IOP while a vault lower than 250 μm may increase the lens density, thus increase the risk of cataract after ICL implantation.

Financial Disclosure:

None