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Published on: January 26, 2018
Combined Phacoemulsification-Endoscopic Cyclophotocoagulation versus Phacoemulsification Alone in Primary
Isabel S W Lai1, Noel C Y Chan2, Anni Ling3
1Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China; Hong Kong Eye Hospital, Kowloon, Hong Kong SAR, China.
Combined phacoemulsification with endoscopic cyclophotocoagulation (ECP) shows promise for controlling intraocular pressure (IOP) in primary angle-closure glaucoma (PACG) patients with cataracts. This pilot study suggests ECP may reduce IOP and medication needs compared to phacoemulsification alone.
Area of Science:
- Ophthalmology
- Glaucoma Research
- Surgical Innovation
Background:
- Primary angle-closure glaucoma (PACG) with coexisting cataract presents unique management challenges.
- Phacoemulsification is a standard cataract surgery, but its effect on IOP in PACG is limited.
- Endoscopic cyclophotocoagulation (ECP) is an adjunctive procedure to reduce aqueous humor production.
Purpose of the Study:
- To compare the efficacy of combined phacoemulsification plus ECP versus phacoemulsification alone in managing PACG with cataract.
- To assess the impact on intraocular pressure (IOP) and glaucoma medication requirements.
Main Methods:
- A prospective randomized controlled pilot study involving 48 PACG eyes with cataracts.
- Patients were randomized to receive either phacoemulsification plus ECP or phacoemulsification alone.
- Follow-up occurred every 3 months for 2 years, monitoring IOP and drug usage.
Main Results:
- Combined phacoemulsification plus ECP demonstrated a trend towards lower postoperative IOP and reduced glaucoma drug requirements compared to phacoemulsification alone.
- Statistical significance in IOP reduction was observed at 1, 12, and 24 months postoperatively.
- No significant differences were found in visual outcomes, complications, or need for further surgery between the groups.
Conclusions:
- Combined phacoemulsification plus ECP is noninferior to phacoemulsification alone for IOP control in PACG eyes with cataracts.
- While trends suggest benefits, further large-scale trials are needed to confirm the statistical significance of IOP and medication reduction.
- This pilot study supports the ongoing large-scale randomized controlled trial evaluating this combined approach.
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