Capsulorhexis contraction after cataract surgery: comparison of sharp anterior edge and modified anterior edge acrylic intraocular lenses.
OBJECTIVE
To evaluate the reduction in the anterior capsule opening after phacoemulsification, continuous curvilinear capsulorhexis, and implantation of 1 of 2 acrylic intraocular lenses (IOLs).


METHODS
Department of Ophthalmology, Vejle Hospital, Vejle, Denmark.


METHODS
Eighty-four patients (84 eyes) were included in a prospective randomized study. All had phacoemulsification followed by implantation of an IOL with a modified anterior edge (38 eyes) or a sharp anterior edge (46 eyes). One day (baseline) and 3 months postoperatively, the area of the anterior capsule opening was measured using retroillumination photographs.


RESULTS
There was a significant reduction in the area of the anterior capsule opening from 1 day to 3 months postoperatively in both groups (P<.001). There was no significant difference in the reduction in the anterior capsule opening between the modified-edge IOL and the sharp-edged IOL (P = .313). The shrinkage was independent of the area of the anterior capsule opening at baseline.


CONCLUSIONS
There was a reduction in the area of the anterior capsule opening in all patients. The design of the anterior edge of the 2 IOLs did not influence the degree of anterior capsule opening shrinkage. The shrinkage was independent of the size of the area 1 day postoperatively.
Corydon
Charlotte
C
Department of Ophthalmology, Vejle Hospital, Vejle, Denmark. cco@dadlnet.dk
Lindholt
Michael
M
Knudsen
Ellen B
EB
Graakjaer
Jesper
J
Corydon
Thomas J
TJ
Dam-Johansen
Mikael
M
D000180:Acrylic Resins; D000368:Aged; D019923:Capsulorhexis; D003286:Contracture / Q000209:etiology*; D005260:Female; D006801:Humans; D007903:Lens Capsule, Crystalline / Q000473:pathology*; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D018918:Phacoemulsification; D011183:Postoperative Complications; D011446:Prospective Studies; D011474:Prosthesis Design; D013997:Time Factors
D000180:Acrylic Resins