What is Glued IOL?
Glued IOL (Intraocular Lens) is an advanced cataract surgery technique where an artificial lens is securely fixed in the eye using a special surgical adhesive. It is typically used when there is insufficient natural support for a standard lens, helping restore stable vision.
Glued IOL in India: An Indian Innovation, Widely Used
Not every eye comes with the neat little pocket that a standard intraocular lens is designed to sit in. Sometimes the capsular bag (the natural envelope that holds the crystalline lens) is torn, shredded, missing, or so weak that it cannot carry a lens at all. Cataract surgery has gone wrong. A firecracker has taken out the lens entirely. A patient with Marfan’s syndrome has watched the lens slowly drift out of place.
In all these situations, the surgeon has the same question: where do I put the new lens? The Glued IOL is one of the best answers ophthalmology has come up with. It is a technique for fixing a foldable intraocular lens (IOL) to the wall of the eye using tiny scleral flaps and fibrin tissue glue, with no sutures involved.
The technique was pioneered by Dr Amar Agarwal in Chennai. It has since been adopted by eye surgeons around the world. It is one of the clearest examples of an Indian surgical innovation that travelled outward rather than inward, and it remains a technique at which Indian anterior segment surgeons are particularly experienced.
Because the technique was developed and first published from India, Indian ophthalmology has a particular depth of experience with it. Training programmes at major centres incorporate Glued IOL as a standard part of anterior segment surgical education. Published outcomes from Indian surgeons continue to shape the evidence base globally.
Aphakia (the absence of a natural lens) without capsular support is a recurring clinical problem in India. It arises from several situations commonly seen here:
- Complicated cataract surgery with posterior capsular rupture
- Trauma causing lens dislocation, including firecracker, industrial, and road traffic injuries
- Subluxation of the lens in Marfan’s syndrome, homocystinuria, or pseudoexfoliation syndrome
- Children who had cataract surgery in early life without primary IOL implantation and now need a secondary lens as they grow
In each of these, Glued IOL offers a reliable, sutureless way to restore the eye’s optical power and give the patient meaningful vision.
Types of IOL Fixation in Eyes Without Capsular Support
| Technique | Description | Advantage |
|---|---|---|
| Glued IOL (Fibrin Glue-Assisted Scleral Fixation) | IOL haptics tucked beneath scleral flaps and glued with fibrin tissue glue | Sutureless; no long-term suture erosion risk; stable |
| Sutured Scleral-Fixated IOL | IOL haptics sutured through the sclera using Prolene sutures | Widely used; technically simpler, but sutures can erode or break years later |
| Iris-Claw IOL (e.g. Artisan) | IOL clipped to the iris surface | No scleral involvement; reversible; risks iris damage and chronic inflammation |
| Anterior Chamber IOL (ACIOL) | Rigid IOL placed in front of the iris | Technically simpler but risks long-term corneal endothelial damage |
How the Glued IOL Procedure Works
The surgery is performed under peribulbar block or general anaesthesia, depending on the case. It is detailed, technical work, and every step matters. The surgeon starts by creating two partial-thickness scleral flaps, small rectangular or triangular flaps of superficial scleral tissue, at diametrically opposite positions (typically 3 o’clock and 9 o’clock), about 1.5 mm behind the limbus (the junction between cornea and sclera).
Two small sclerotomies (full-thickness openings) are made under the shelter of each flap. An anterior vitrectomy is performed to clear any vitreous from the anterior segment, which prevents vitreous traction and tangling with the IOL later on.
Through a main corneal incision, a foldable three-piece IOL is injected into the eye. Using a specialised gluing needle and micro-forceps, the surgeon externalises the IOL haptics (the thin curving arms of the lens) through the two sclerotomies. The haptics are then tucked into small tunnels (Scharioth pockets) made within the scleral flap margins.
Fibrin tissue glue is applied under the scleral flaps, and the flaps are pressed down. The glue sets in seconds. The haptics stay locked in position, the IOL sits centred in the posterior chamber, and no sutures are used at all.
When is Glued IOL Necessary?
- Aphakia (no natural lens, no capsular bag) following complicated cataract surgery
- Subluxated or dislocated crystalline lens (a lens that has slipped from its normal position)
- A previously implanted IOL that has dislocated and needs to be removed and replaced
- Absence of capsular support after trauma or in Marfan’s syndrome
- Paediatric aphakia requiring secondary IOL implantation after childhood cataract surgery
- Pseudoexfoliation syndrome with progressive zonular weakness and lens instability
Glued IOL Step-by-Step Procedure
- Pre-operative planning: biometry for IOL power calculation, corneal topography, detailed vitreous and retinal assessment.
- Anaesthesia: peribulbar block or general, depending on complexity and patient factors.
- Scleral flap creation: two partial-thickness flaps, 180 degrees apart.
- Anterior vitrectomy: clearing vitreous from the anterior chamber to prevent later traction.
- IOL insertion: a foldable three-piece IOL is injected through the corneal incision.
- Haptic externalisation: the haptics are brought out through the sclerotomies using specialised instruments.
- Tucking and gluing: haptics are placed into Scharioth pockets, fibrin glue is applied under the scleral flaps, and the flaps are sealed down.
- Wound closure: the corneal incision is hydrated or sutured, and the conjunctiva is closed over the scleral flaps.
- Final assessment: IOL centration and intraocular pressure are checked before leaving theatre.
How Much Does Glued IOL Surgery Cost in India?
| Procedure | Approximate Cost Range (INR) |
|---|---|
| Glued IOL (secondary implantation) | 40,000 to 90,000 |
| Glued IOL with anterior vitrectomy | 50,000 to 1,10,000 |
| Glued IOL with additional procedures (e.g. pupilloplasty) | 70,000 to 1,40,000 |
Cost depends on case complexity and any combined procedures. Vasan Eye Care provides a personalized estimate after evaluation.
Post-Surgery Care and Recovery
What to Expect After Glued IOL?
Expect the eye to feel sore and look red for a week or two. Vision improvement is gradual. Unlike a routine cataract surgery, the eye has been through more, and the visual system needs time to settle. Some residual refractive error is common and is managed with spectacles once things stabilize, usually six to eight weeks after surgery.
Once healed, the IOL is designed to stay in place indefinitely. Long-term follow-up watches for the rarer late complications such as hypotony (low eye pressure), macular oedema, or IOL tilt.
Post-Operative Care Tips
- Use antibiotic and steroid eye drops exactly on schedule.
- Do not rub or press the operated eye under any circumstances.
- Wear a protective shield, especially at night, for the first two weeks.
- Avoid heavy lifting, bending, and strenuous exertion for three to four weeks.
- Attend follow-ups at day 1, week 1, week 3, and month 2.
- Sudden pain, a significant drop in vision, or new floaters is not something to wait on. Call the hospital the same day.
References
PMC / NCBI. Glued IOL Technique: Outcomes and Safety, 2017.
Wikipedia. Glued Intraocular Lens.
EyeWorld. Glued IOL in Eyes with Deficient Capsules, 2021.
Frequently Asked Questions
Dr Amar Agarwal, at Dr Agarwal’s Eye Hospital in Chennai, pioneered the technique. It was first published in international ophthalmic literature and has since been widely adopted by surgeons around the world. It is one of the proudest examples of an Indian ophthalmic innovation with global reach.
Both are effective in the right hands. The practical advantage of Glued IOL is that there are no sutures to fail. Prolene sutures used in traditional scleral-fixated IOL can erode through the conjunctiva, weaken, and break years after surgery, causing the IOL to tilt or dislocate. Glued IOL avoids that particular class of late complications. The trade-off is that it demands more surgical skill and specialised equipment.
Properly performed, Glued IOL offers long-term stability. The fibrin glue itself is reabsorbed over time, but by then the scleral tunnel (the Scharioth pocket) mechanically holds the haptic in place. Published long-term studies report very low rates of IOL dislocation after Glued IOL in experienced hands.
Yes. It is used in paediatric aphakia, particularly in children who had cataract surgery early in life without a primary IOL and now need secondary implantation. Eye growth considerations are factored into the IOL power calculation, and the technique itself adapts well to smaller eyes.
Typically 45 to 90 minutes, depending on complexity. Combined procedures (corneal transplant, pupilloplasty, repair of iris defects) take longer.
Most patients will. The IOL corrects the major refractive error, but residual prescription is common, and glasses fine-tune the final vision. The final spectacle prescription is determined six to eight weeks after surgery, once the eye has fully settled.
A foldable three-piece IOL, which has a central optic and two thin, curved haptics. The two haptics are what get externalised through the sclerotomies and tucked into the scleral pockets. The exact IOL model is chosen based on the eye’s axial length and IOL power calculation.
If the IOL later needs exchange or removal, a revision procedure is possible. However, operating on an eye that already has scleral fixation is more complex than a routine IOL exchange. The scleral flaps need to be recreated or worked around, and the risks are higher.
Yes. In eyes with both corneal disease and aphakia, Glued IOL can be combined with penetrating or lamellar keratoplasty in a single combined procedure. It is complex surgery, usually reserved for experienced centres, but it is a well-established combination and the results are very good in appropriate cases.
Yes. The anterior segment surgical team at Vasan Eye Care performs the Glued IOL procedure for appropriate cases of aphakia, dislocated IOLs, and lens subluxation.
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References
PMC / NCBI. Glued IOL Technique: Outcomes and Safety, 2017.
Wikipedia. Glued Intraocular Lens.
EyeWorld. Glued IOL in Eyes with Deficient Capsules, 2021.
