Extracapsular cataract extraction in eyes previously operated for glaucoma

Area of Science:

• Ophthalmology
• Glaucoma Research
• Cataract Surgery Outcomes

Background:

• Glaucoma and cataracts frequently coexist, necessitating surgical intervention.
• Previous glaucoma surgery may influence the outcomes of subsequent cataract extraction.

Purpose of the Study:

• To compare the safety and efficacy of extracapsular cataract extraction with intraocular lens (IOL) implantation in glaucomatous eyes with and without prior trabeculectomy.
• To evaluate intraocular pressure (IOP) changes and visual acuity after surgery in these two groups.

Main Methods:

• Extracapsular cataract extraction with IOL implantation was performed in 32 eyes with prior trabeculectomy (Group A) and 68 eyes without prior surgery (Group B).
• Intraocular pressure (IOP) and visual acuity were monitored postoperatively.

Main Results:

• Postoperative day 1 mean IOP was 17.7 mmHg in Group A and 21.7 mmHg in Group B (p=0.015).
• Despite lower preoperative IOP in Group A, the IOP increase was not significantly different between groups.
• Four months postoperatively, IOP was significantly reduced in Group B and unchanged in Group A.
• Visual acuity of 5/10 or better was achieved in 72% of Group A and 79% of Group B eyes.

Conclusions:

• Extracapsular cataract extraction with IOL implantation is a safe procedure in glaucomatous eyes, even those with a history of trabeculectomy.
• The procedure results in comparable visual acuity and acceptable IOP profiles in both patient groups.