Extracapsular cataract extraction and posterior chamber intraocular lens implantation in eyes with pre-exiting trabeculectomy

الملخص EN

The purpose of this study is to evaluate the effects of extra capsular cataract extraction with posterior chamber intraocular lens implantation (ECCEéPCIOL) on the intraocular pressure (IOP) control in eyes having previous trabeculectomy operation.

Forty five eyes of 45 patients that underwent ECCEéPCIOL after previous trabeculectomy operations are included in the present study.

Evaluation of preoperative, intraoperative, and postoperative factors and their effects on IOP control after ECCEéPCIOL was done.

Follow-up period after surgery ranged from 8 to 24 months.

Complete success was achieved in 25 eyes (55.5 %) (With no need for ant glaucoma medications or surgery to control IOP), qualified success (using ant glaucoma medications to control IOP) in 16 eyes (35.5%), and failure (é needing for ant glaucoma surgery to control IOP) in 4 eyes (8.88 %).

The study showed the factors associated with less control of IOP were: younger patients (with age less than 45 years), uveitis and nonvascular glaucoma, intraoperative iris manipulation, preoperative IOP more than 15 mmHg and maximum postoperative IOP more than 25 mmHg.

Objectives: to evaluate the effects of cataract extraction on the intraocular pressure (IOP) control in eyes having previous trabeculectomy.

Material and methods : A total of 45 eyes of 45 patients who underwent extra capsular cataract extraction (ECCE) with posterior chamber intraocular lens (PCIOL) implantation after previous trabeculectomy operations are included in the present study.

Evaluation of preoperative, intraoperative and postoperative factors and their effects on IOP control after cataract extraction was done.

Results: After mean post-operative follow up of 8-24 months, 16 eyes (35.5 %) were in need for additional glaucoma medications (qualified success), and 4 eyes (8.88 %) needed another filtering operation (failure) to control the IOP.

Complete success obtained in 25 eyes (55.5 %).

Mean IOP at the last visit had increased 2 mmHg above the preoperative level.

The median interval from the ECCE to the addition of ant glaucoma medication was 2 months, and to further glaucoma surgery was 5 months.

Postoperative hypo tony was noticed in 4 eyes (8.88 %) that improved in 3 and persisted in one eye.

Conclusion : when doing ECCE in eyes with preexisting trabeculectomy, some factors are associated with less control of IOP these factors include: younger patients with age less than 45 years, uveitis and nonvascular glaucoma, intraoperative iris manipulation, preoperative a IOP more than 15 mmHg and maximum post-operative IOP more than 25 mmHg.