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What is MINIjet Implant?

The MINIject™ implant is an innovative suprachoroidal drainage procedure designed to effectively manage glaucoma. This surgical technique focuses on creating a controlled drainage pathway within the suprachoroidal space, aiding in the reduction of intraocular pressure (IOP) and addressing the underlying causes of glaucoma.  It is a type of Minimally Invasive Glaucoma Procedure which does not create filtration bleb and is often performed together with cataract surgery.


The MINIject implant is magnetic resonance (MR) Safe: the implant is constructed of silicone, a non-conducting, non-metallic, non-magnetic material that poses no known hazards in all magnetic resonance imaging environments.

Intended benefits

The primary objective of the iStar MINIjet procedure is to lower intraocular pressure. By facilitating drainage through the suprachoroidal space, excess fluid is efficiently directed away from the eye, helping to alleviate pressure and potentially preventing further damage to the optic nerve.  The efficacy results indicate a sustained, meaningful 36% reduction of eye pressure at three years with 42% of patients being medication-free. 

What does the surgery involve?

a) Preoperative Evaluation:

Prior to the iStar MINIjet procedure, your eye surgeon will conduct a comprehensive examination to assess the severity of your glaucoma and determine your eligibility for the surgery. This evaluation helps tailor the procedure to your specific needs.

b) Anesthesia:

The surgery is typically performed under local anesthesia to ensure your comfort. Your eye surgeon will numb the eye and surrounding areas before commencing the procedure.

c) Surgical Steps:

During the iStar MINIjet procedure, a specially designed introducer will be used by your surgeon to access the suprachoroidal space and deliver the device.  The correct placement of the device will be checked carefully by your surgeon.  The procedure generally take additional 5 minutes when combined with cataract surgery.

d) Postoperative Care:

After the surgery, your surgeon will provide detailed postoperative care instructions. This would include the use of prescribed eye drops and limitations on certain activities to promote healing. Follow-up appointments will be scheduled to monitor your progress and assess the success of the iStar MINIjet procedure.

It is essential to engage in open communication with your eye care professional to discuss the iStar MINIjet procedure thoroughly, ensuring that you have a clear understanding of its potential benefits and expected outcomes based on your individual condition.

Things to look out for after operation

  • Do not rub or put pressure on the eye.

  • To clean your eye lids, clean gently with a clean moist face washer while keeping your eyes closed.

  • Do not get soap or water into your eye.

  • Do not shampoo your hair for one week.

  • Wear sun glasses outside, preferably with side shields.

  • Avoid dusty areas.

  • Sleep with the plastic shield taped in place for one week.  Try not to sleep on the operated side.

  • Do not drive for one week.

  • Do not vacuum the house for 2 weeks after the surgery.

  • No swimming or hydrotherapy for 4 weeks after surgery.

  • Avoid strenuous activity and heavy lifting for 4 weeks.

  • Please bring your eye drops with you to all your post operative appointments.

Possible complications after surgery

Minor post operative complications or problems, including:

  • an increase of pressure within the eye, occur infrequently in the first week or so following surgery. These are usually temporary, easily treatable and do not affect the long-term visual outcome after surgery.

  • Small amount of bleeding in the front part of your eye (anterior chamber) which rarely can occur following MINIjet surgery.  This blood will not affect long-term visual outcome after surgery and generally clear by itself in one to two weeks.

  • Prolong inflammation following operation which can cause fluid development in the retina at the center of vision (cystoid macular oedema).  These are usually resolves with treatment with steroid medication and do not affect long-term visual outcomes of surgery.

Major complications: the most serious complication that can occur is an infection within the eye (endophthalmitis). This usually occurs within the first week after surgery and affects less than 1 in 1000 patients. It can lead to an irreversible loss of sight in the operated eye. The risk of infection is reduced by the use of antibiotics during and after the operation, by treating any lid inflammation prior to surgery and keeping the eye clean following the operation.

You will be advised regarding any measures you can take to reduce your risk of infection after surgery at the pre-assessment appointment.

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