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Updated: Jun 27, 2026

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Ultrasound Cyclo Plasty in Eyes with Glaucoma
Published on: January 26, 2018
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Ultrasonic circular cyclocoagulation prospective safety and effectiveness study.
Tiago Morais Sarmento1, Ricardo Figueiredo2, João Garrido2
1Ophthalmology Department of Hospital Espírito Santo de Évora, Serviço de Oftalmologia Do Hospital Do Espírito Santo de Évora, Largo Senhor da Pobreza, 7000-811, Évora, Portugal. tiagomsarmento@edu.ulisboa.pt.
International Ophthalmology
|April 21, 2021
Summary
Ultrasound cycloplasty procedures (UCP) effectively reduce intraocular pressure (IOP) in severe glaucoma patients, offering a viable alternative to traditional surgery. While generally safe with reversible complications, long-term outcomes require further study.
Area of Science:
- Ophthalmology
- Glaucoma Treatment
- Medical Devices
Background:
- Glaucoma is a leading cause of irreversible blindness.
- Uncontrolled intraocular pressure (IOP) necessitates effective treatment strategies.
- Ultrasound cycloplasty procedures (UCP) offer a less invasive approach to IOP management.
Purpose of the Study:
- To assess the efficacy and safety of UCP in patients with uncontrolled glaucoma.
- To determine the success rates and complication profiles of UCP.
- To evaluate UCP as an alternative to conventional cyclodestructive surgery.
Main Methods:
- A prospective longitudinal study involving 14 eyes of 13 patients with advanced glaucoma.
- UCP was performed using the EyeOP1© probe, with treatment duration and sector application adjusted based on baseline IOP.
- Patients were followed for 12 months, with IOP, drug usage, and complications meticulously recorded.
Main Results:
- 100% surgical success was achieved at 12 months post-procedure.
- Mean IOP significantly decreased from 28.50 mmHg pre-operatively to 15.23 mmHg at 12 months (p < 0.01).
- Major reversible complications included choroidal detachment and corneal edema; minor complications were transient.
Conclusions:
- UCP demonstrates significant efficacy in reducing IOP for severe glaucoma cases.
- Repeated UCP applications present a safe, medium-to-long-term alternative to cyclodestructive surgery.
- Further long-term investigations are needed to fully establish the sustained efficacy and safety of UCP.

