[The influence of flexible open-loop anterior chamber intraocular lens on the structure of ocular anterior segment].
OBJECTIVE
To evaluate the therapeutic effects and safety of flexible open-loop anterior chamber intraocular lens (FOAC-IOL).


METHODS
By ultrasound biomicroscopy, the positions of the haptics of FOAC-IOL in 20 patients (20 eyes) and the relationships of the haptics with iris and anterior chamber angle structures were observed postoperatively to evaluate the impact of these lenses on the structures of ocular anterior segment. Follow-up duration was from 6 to 20 months.


RESULTS
Among 40 IOL's haptics, twenty-six haptics were fixed at the recess of the chamber angle; and other fourteen haptics penetrated the iris and invaded into the ciliary stroma, which caused recurrent uveitis. There was 1 eye with eccentric lens. There were 8 eyes with anterior synechiae of iris, which were related to the haptics of intraocular lens.


CONCLUSIONS
Ultrasound biomicroscopy works well in dynamic observation of the influence of intraocular lens on ocular anterior segment. The haptics of flexible open-loop anterior chamber intraocular lens should be modified.
Chen
W
W
Zhongshan Ophthalmic Center, Sun Yat-sen University of Medical Sciences, Guangzhou 510060, China.
Liu
Y
Y
Chen
X
X
D000368:Aged; D000369:Aged, 80 and over; D000867:Anterior Chamber / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007498:Iris / Q000000981:diagnostic imaging; D019654:Lens Implantation, Intraocular / Q000009:adverse effects / Q000379:methods; D007910:Lenses, Intraocular / Q000009:adverse effects; D008297:Male; D008875:Middle Aged; D014463:Ultrasonography; D014605:Uveitis / Q000209:etiology