The device has an eyeplate tube.
Glaucoma drainage devices (GDDs)/drainage implants/aqueous shunts/tube shunts are small devices placed on the surface of the eye to treat glaucoma.
In glaucoma, aqueous humor in the anterior chamber of the eye cannot drain properly through the front of the eye. This causes intraocular pressure to increase and damages the optic nerve head, including the optic nerve fibers at the back of the eye. If left untreated, glaucoma can cause permanent blindness. A glaucoma drainage device creates a new pathway for aqueous humor to drain through the device’s tube, thereby helping to reduce intraocular pressure. The device rests on the sclera, conforms and curves to the shape of the eye, and is covered by the conjunctiva. The end of the tube is positioned in the anterior chamber near the limbus and does not interfere with vision.
Indications for Glaucoma Drainage Devices
- Intraocular pressure cannot be controlled with glaucoma medications.
- Previous glaucoma drainage surgery using other methods, such as microinvasive glaucoma surgery (MIGS), trabeculectomy, or deep sclerectomy, has failed and cannot control intraocular pressure to a safe or desired target level.
This method may be used as a first-line surgical treatment for certain types of glaucoma, such as neovascular glaucoma, uveitic glaucoma, congenital glaucoma, and glaucoma occurring after cataract surgery in both aphakic and pseudophakic eyes (aphakic/pseudophakic glaucoma).
Contraindications to Glaucoma Drainage Device Surgery
- Conjunctivitis
- Corneal ulcer
- Intraocular infection (endophthalmitis)
- Inflammation of the orbital tissues (orbital cellulitis)
- Bacteremia or septicemia
- Active scleritis
- Active uveitis
- Previous scleral buckle surgery
- Previous rectus muscle surgery
eyePlate
It is a non-valved drainage device with a tube that drains aqueous humor from the anterior chamber to the outside of the eye to reduce intraocular pressure in patients with ocular hypertension or glaucoma. It is made of soft, thin, medical-grade silicone that is highly flexible and foldable. The part resting on the surface of the eye has a convex shape on the outer side to conform to the curvature of the eye. eyePlate is designed to drain aqueous humor effectively without requiring insertion beneath the rectus muscles. It is safe in high magnetic-field environments (MR safe) and helps reduce the need for postoperative glaucoma eye drops.
There are 4 types of eyePlate:
1 eyePlate-200
2 eyePlate-300
3 eyePlate-200s
4 eyePlate-300s
- The drainage surface area is available in 2 sizes, indicated by the numbers 200 and 300, measured in square millimeters.
- All models have the same thickness of 0.8 millimeters.
- The eyePlate-200 and eyePlate-300 tubes have an outer diameter of 0.63 millimeters and an inner diameter of 0.30 millimeters.
- The eyePlate-200s and eyePlate-300s tubes have an outer diameter of 0.47 millimeters and an inner diameter of 0.18 millimeters.
Reference :
Independent Writer
Share this article
More Articles
Discover more insights on health care and medical tourism.
How to treat plantar fasciitis? Treatment methods for heel pain range from rest and physical therapy to surgical procedures.
Heel pain when walking, especially during the first step after waking up or after sitting for a long time and then standing up to walk, is a symptom many people are familiar with. One of the common causes is plantar fasciitis or inflammation of the plantar fascia.
What is Bone Age? Comparing biological age vs. bone age: Check before your child misses out on important opportunities.
What is Bone Age? Understand “Actual Age VS Bone Age” Before Your Child Misses Growth Opportunities Many parents may have wondered why their child seems shorter than peers of the same age? And whether their child still has a chance to grow taller? In fact, the answer may not lie solely in the actual age but in an important factor called Bone Age, which is an indicator that can show how much more growth potential the child has.
What Tests Are Included in a Health Checkup Before Starting Hormone Therapy?
“Just take hormones - there’s no need to get any tests first, right?” This is a very dangerous misconception. Hormones are not vitamins; they are substances that alter how the entire body functions, from the liver, kidneys, and heart to the blood vessels. If you start without knowing whether your body is ready,