What is Robotic Cataract Surgery?

Robotic Cataract Surgery in India

The word “robotic” here is a little misleading. No autonomous machine walks into theatre and performs surgery on its own. The surgeon remains in charge throughout. What changes is that several of the most demanding manual steps (the corneal incisions, the circular opening in the lens capsule, the initial fragmentation of the cataract) are handed over to a computer-controlled femtosecond laser. The laser executes them to a precision that human hands cannot consistently match.

Robotic cataract surgery, also known as laser-assisted cataract surgery or FLACS, works in this hybrid way. A pre-programmed laser platform performs the corneal incisions, the capsulorhexis, and initial lens fragmentation. Phacoemulsification (performed by the surgeon) then removes the softened lens fragments, and an intraocular lens (IOL) is implanted exactly as in conventional cataract surgery.

At Vasan Eye Care, robotic or laser-assisted cataract surgery is offered for patients who would benefit from computer-guided precision in these specific steps, particularly those considering premium IOLs. The technique is supported by clinical research demonstrating reproducible incision geometry, well-centred capsulotomies, and reduced ultrasound energy requirements during phacoemulsification.

Laser-assisted cataract surgery has been available in India for more than a decade and is now offered at leading tertiary eye care centres in major cities. The technology is particularly relevant here, for two reasons. Cataract remains the leading cause of reversible blindness in India, and patient expectations around visual quality keep climbing, especially among those opting for multifocal, trifocal, toric, or EDOF IOLs. When a patient is paying for a premium lens, precision of placement is not a nice-to-have; it is what makes the lens work.

Indian ophthalmologists typically reserve femtosecond laser-assisted cataract surgery for eyes with specific anatomical considerations: shallow anterior chamber, hard nuclei, weak zonules, or cases needing astigmatic corneal incisions. Candidate selection is guided by the same detailed biometry, topography, endothelial assessment, and macular evaluation used in any modern cataract workflow. The laser is not pushed on every patient; it is offered where it earns its place.

Types of Robotic Cataract Surgery Platforms

Several femtosecond laser platforms are in use in India:

Robotic Cataract Surgery: How the Procedure Works?

The procedure has two main stages.

In the first stage, the patient is positioned under the femtosecond laser. A docking interface is placed on the eye to stabilise it, and an integrated optical coherence tomography (OCT) system images the cornea and lens. Based on these images, the surgeon sets the pattern for corneal incisions, capsulorhexis, and lens fragmentation. The laser then delivers ultra-short pulses that perform these steps in sequence, typically within a minute. Nothing about this step is autonomous; every parameter is set by the surgeon.

In the second stage, the patient is moved to the operating microscope. The surgeon performs phacoemulsification to remove the fragmented lens, and then implants the IOL. Because the laser has pre-divided the nucleus, less ultrasound energy is needed during aspiration. That energy saving protects the corneal endothelium, the single layer of cells at the back of the cornea whose loss directly affects long-term corneal clarity.

When Is Robotic Cataract Surgery Indicated?

The indications for cataract surgery itself are familiar:

• Progressive blurring of vision
• Glare and halos at night
• Reduced contrast sensitivity
• Colour desaturation
• Difficulty with reading, driving, or watching television

The laser-assisted approach is particularly useful when:

• A premium IOL is planned, and capsulotomy precision is critical to lens centration
• Significant corneal astigmatism needs arcuate incisions as part of the plan
• The cataract is hard or dense, and reduced ultrasound energy is desirable
• The anterior chamber is shallow
• Corneal endothelial cell counts are low, as in Fuchs’ dystrophy

The surgeon decides whether the laser-assisted approach offers meaningful benefit in a given eye, or whether conventional phacoemulsification is the more appropriate choice.

Robotic Cataract Surgery: Step-by-Step Procedure

1. Pre-operative assessment: biometry, corneal topography, macular OCT, endothelial cell count, refractive planning.
2. IOL power and type selected in consultation with the patient.
3. On the day of surgery: topical anaesthetic drops, pupils dilated.
4. Patient positioned under the femtosecond laser; docking interface applied; laser performs incisions, capsulotomy, and lens fragmentation.
5. Patient moved to the operating microscope; phacoemulsification removes the softened lens.
6. Chosen IOL implanted through the laser-created incision.
7. Eye protected with a shield; drops instilled; patient discharged the same day.
8. Routine follow-up at day one, one week, and four to six weeks.

How Much Does Robotic Cataract Surgery Cost in India?

Final costs are confirmed after the pre-operative evaluation and an honest discussion of lens options.

Robotic Cataract Surgery: Post-Surgery Care and Recovery

What to Expect Post Robotic Cataract Surgery?

Most patients experience improved vision within 24 hours, although full stabilisation takes a few weeks. Mild grittiness, watering, and light sensitivity are common initially. With premium IOLs, neural adaptation to multifocal or EDOF optics may continue over several weeks to a few months. Final refraction is usually established by four to six weeks.

Post-Operative Care Tips

• Use all prescribed drops on schedule.
• Wear the protective shield at night for the first week.
• Do not rub or press on the eye.
• Keep water out of the operated eye for two weeks. No swimming or saunas for four weeks.
• Minimise dust exposure; wear sunglasses outdoors.
• Resume driving only when your surgeon confirms adequate visual recovery.
• Screen work and reading can generally resume within a few days, with lubricant drops and frequent blinking.
• Attend follow-ups to monitor IOP, IOL position, and healing.

References

• American Academy of Ophthalmology. Femtosecond Laser-Assisted Cataract Surgery Clinical Statement.
• Nagy ZZ et al. Femtosecond Laser-Assisted Cataract Surgery. Journal of Cataract & Refractive Surgery.
• All India Ophthalmological Society. Cataract Surgery Guidelines.
• Indian Journal of Ophthalmology. Outcomes of Laser-Assisted Cataract Surgery in Indian Eyes.
• Royal College of Ophthalmologists. Cataract Surgery Guidelines.