How Long Does Retinal Detachment Surgery Take?

Most retinal detachment surgeries take between one and two hours of actual operating time, though the range stretches from under an hour for straightforward cases to well over three hours for complex ones. The specific procedure your surgeon chooses, the severity of the detachment, the type of anesthesia, and even whether the operation takes place at a teaching hospital all shift that number meaningfully. Understanding each of these variables helps set realistic expectations for what is often an anxiety-producing wait.

Typical Durations for the Main Surgical Approaches

Retinal detachment is treated with one of three primary procedures, and each has a different time profile. A scleral buckle involves placing a band of silicone around the outside of the eye to push the wall inward against the detached retina. In a study of over a hundred primary scleral buckle repairs, the average operating time was about 106 minutes, with a median closer to 98 minutes. The fastest cases finished in under an hour, while the most complex ran nearly four hours.¹

Pars plana vitrectomy, usually just called vitrectomy, is the most common approach today. The surgeon removes the vitreous gel inside the eye, repairs any retinal tears, and fills the eye with gas or silicone oil to hold the retina in place. Operating times for vitrectomy tend to be shorter than for scleral buckle, averaging roughly 65 to 80 minutes in published series, though this varies with complexity.² A large database analysis found that community retinal surgeons operating without trainees averaged about 55 minutes for vitrectomy-only detachment repairs.³

The third option, pneumatic retinopexy, is the quickest. It involves injecting a gas bubble into the eye in an office or minor procedure room and is typically reserved for simpler detachments with a single tear in the upper part of the retina. Because no incision into the eye’s deeper structures is required, the procedure itself can be completed in under half an hour.

Sometimes surgeons combine approaches. Adding a scleral buckle to a vitrectomy adds roughly 30 extra minutes to the procedure, according to a large analysis of retinal detachment repairs.³ A meta-analysis comparing vitrectomy alone to combined vitrectomy-buckle for detachments with inferior tears found no meaningful difference in the odds of a flat retina at three or twelve months, though vision recovery at three months was slightly slower in the combined group before equalizing by one year.⁴ The choice to combine procedures is driven by the anatomy of the detachment, not by a goal of finishing faster.

What Makes Surgery Take Longer

A detachment that covers a large area of the retina, has many tears, or has developed scar tissue takes longer to repair than one caught early with a single break. A study that tracked the variables influencing scleral buckle duration found that the number of retinal breaks and the extent of the detachment, measured in clock hours, were among the key drivers of longer operations.¹

A similar pattern holds for vitrectomy. A large dataset analysis identified specific factors that added minutes to the procedure:

Scar tissue (PVR): Proliferative vitreoretinopathy, a complication where membranes grow on the retina’s surface, added roughly 13 minutes on average.
Membrane peeling: If the surgeon needed to peel scar tissue off the retina, that added about 18 to 19 minutes.
More retinal breaks: Each additional break added roughly two and a half minutes.

These figures come from a study of thousands of retinal detachment repairs across academic and community settings.³ In practice, a patient with a small, fresh detachment and one break might be out of the operating room in well under an hour, while someone with widespread scar tissue and multiple tears could be on the table for two hours or more. Your surgeon’s estimate before the procedure will be based on what they see on your imaging.

How Anesthesia Affects the Clock

The choice between local and general anesthesia has a surprisingly large impact on total time in the operating suite. Under local anesthesia, which typically means a numbing injection around the eye, the average surgical duration in one study was about 66 minutes. Under general anesthesia, it jumped to about 100 minutes for the surgery alone. Total anesthesia time, which includes induction and emergence, averaged roughly 100 minutes for local cases versus nearly 146 minutes under general. Recovery room time was also shorter after local anesthesia, averaging about 53 minutes compared with 75 minutes for general.⁵

The gap does not necessarily mean the surgery itself is harder under general anesthesia. The additional time is partly explained by the logistics of putting someone fully under and waking them up, and partly because general anesthesia is more often chosen for longer, more complicated cases to begin with. Still, if you are having a straightforward repair and your surgeon offers a choice, knowing that local anesthesia tends to cut your overall facility time by a meaningful margin is useful information.

Teaching Hospitals and Surgeon Experience

If your surgery is at an academic medical center where a fellow is being trained, expect it to run longer. The data on this is clear: vitrectomy repairs performed with a fellow present averaged about 73 to 76 minutes, while the same type of repair done by a community surgeon without a trainee averaged about 55 minutes. That is roughly a 30 percent longer procedure when a fellow is involved.³

This does not mean outcomes are worse at teaching hospitals. The attending surgeon supervises every step, and trainees need to learn somewhere. But if you are trying to plan your day or arrange a ride home, it helps to know that a teaching setting typically adds 15 to 20 minutes to the procedure itself, on top of whatever additional time the facility’s workflow requires.

Broader facility differences also matter. A comparison of ambulatory surgical centers found that freestanding centers had total perioperative times roughly 39 percent shorter than hospital-based centers across a range of procedures, driven by faster room turnover and shorter recovery stays rather than differences in the operations themselves.⁶ While that study covered many surgical specialties rather than only retinal surgery, the pattern is consistent with what patients observe: a dedicated eye surgery center often moves faster from check-in to discharge than a large hospital’s operating suite.

Operating Time Versus Your Time at the Facility

When patients ask “how long does the surgery take,” they often really want to know how many hours they will be at the hospital or surgery center. The operating time your surgeon quotes is only the middle portion of a longer day. Before surgery, you will check in, have your eye dilated with drops, receive anesthesia, and wait for the operating room to be prepared. Afterward, you will spend time in a recovery area where staff monitors your eye pressure and makes sure you are stable. Total facility time for a routine vitrectomy under local anesthesia might run three to four hours from the moment you walk in to the moment you leave, even if the surgery itself lasted barely an hour.

Under general anesthesia, add another hour or so for induction, emergence, and extended recovery monitoring. If your surgery is more complex, or if delays push your case start time, the day stretches further. Asking your surgeon’s office for an estimate of total facility time, rather than just operating time, is the more practical question for planning purposes.

How Urgently Does the Surgery Need to Happen

Retinal detachment is treated as an urgent or emergent condition, and the timing of surgery has a direct effect on how well your vision recovers. The critical distinction surgeons make is between “macula-on” detachments, where the central retina is still attached and vision remains relatively intact, and “macula-off” detachments, where the central retina has already peeled away and vision has dropped.

For macula-on detachments, a meta-analysis found that repair within 24 hours of presentation led to slightly better final visual acuity than waiting longer.⁷ These cases are typically scheduled as the next available emergency slot, sometimes the same day. The fear is that the detachment will progress to involve the macula while waiting.

For macula-off detachments, the window is slightly wider but still pressing. The same meta-analysis found that repair within three days of symptom onset produced better visual outcomes than waiting four to seven days.⁷ A separate systematic review focused on scleral buckle repairs confirmed this, showing that patients operated within three days had roughly three times the odds of achieving good final vision compared with those who waited longer, and that outcomes continued to worsen the further surgery was delayed past that window.⁸

This urgency means most retinal detachment surgeries are not elective procedures you can schedule weeks out. You may receive a phone call telling you to come in tomorrow morning. Knowing in advance that the surgery itself will run one to two hours, plus a few hours of surrounding prep and recovery, can help you arrange work, childcare, and transportation on short notice.

After the Surgery Ends

The time commitment does not stop when you leave the facility. If a gas bubble was placed in your eye, you will likely be asked to maintain a specific head position for several days to keep the bubble pressing against the repaired area. How long depends on the location of the tear. For macular holes, one study found that three days of strict face-down positioning was sufficient to achieve closure, compared with the traditional recommendation of a full week.⁹ For standard retinal detachment repairs, your surgeon will give specific instructions based on where the tear sits. Some patients need to keep their head in a certain position nearly around the clock for days, which many find more grueling than the surgery itself.

A gas bubble gradually dissolves on its own over two to eight weeks, depending on the type of gas used. You cannot fly or travel to high altitude during that period, because the change in pressure can cause the bubble to expand dangerously inside the eye.

If silicone oil was used instead of gas, which is more common in severe or recurrent detachments, it does not dissolve and must be surgically removed later. The median time between oil placement and removal in one retrospective series was about 196 days, roughly six and a half months.¹⁰ Another series reported an average of about five and a half months.¹¹ That second surgery is typically shorter and less involved than the original repair, but it means another trip to the operating room, another round of anesthesia, and another recovery period.

Children and Retinal Detachment

Pediatric retinal detachment surgery tends to be longer and more complex than adult surgery. Children are more likely to present with total detachments, bilateral involvement, and delayed diagnoses, all of which increase the difficulty and duration of the repair.¹² General anesthesia is essentially always required for children, which adds time. And children with detachments often need more than one surgery. A registry analysis of pediatric retinal detachments found that affected children averaged about 1.7 surgeries per eye within the first year.¹³

Parents should expect longer procedures, a higher likelihood of repeat operations, and a recovery process that requires cooperation from a child who may not fully understand why they need to keep still or maintain a head position. Planning for pediatric retinal surgery is a family-level logistical challenge that goes well beyond the hours in the operating room.

How Smaller Instruments Have Changed Things

Vitrectomy technology has evolved rapidly. Older instruments required larger incisions, which meant more suturing at the end and longer overall procedures. Modern small-gauge vitrectomy systems use much finer instruments that enter through tiny self-sealing ports, eliminating most suturing. This shift has shortened operating times, improved patient comfort, and sped up visual recovery.¹⁴ One of the practical consequences is that many vitrectomies that once required an overnight hospital stay are now done as outpatient procedures, with patients going home the same day.

Ongoing refinements in surgical technique also play a role. A study of vitrectomy for a specific type of retinal detachment found that optimizing the order of surgical steps reduced the average operating time from about 79 minutes to 64 minutes while also lowering complication rates.² These gains are incremental but meaningful: a 15-minute reduction in operating time translates to less time under anesthesia, less inflammation, and a slightly easier early recovery.

The trajectory of the field is toward shorter, less invasive procedures with faster recoveries. For a patient facing retinal detachment surgery today, the experience is already considerably different from what it would have been even a decade ago. The surgery remains serious, but the time spent on the operating table and the physical toll afterward continue to shrink as techniques and instruments improve.

1
PubMed Central. Operative Times in Scleral Buckle Surgery: Influencing Factors and Cost Analysis
2
PubMed Central. Optimized design of surgical steps in pars plana vitrectomy for macular hole retinal detachment in pathological myopia decreases rate of iatrogenic retinal break and shortens length of operation
3
Ophthalmology Retina. Academic versus Community Retinal Surgery for Primary Retinal Detachment: Characteristics, Duration, and Value Analysis of Teaching Modifier
4
Ophthalmology Retina. Outcomes of Scleral Buckling, Pars Plana Vitrectomy, and Combined Pars Plana Vitrectomy-Scleral Buckling for Rhegmatogenous Retinal Detachments with Inferior Retinal Breaks
5
PubMed Central. Analysis of Operational Efficiency and Cost Differences between Local and General Anesthesia for Vitreoretinal Surgery
6
PubMed Central. A comparison of ambulatory perioperative times in hospitals and freestanding centers
7
American Journal of Ophthalmology. Impact of the Time to Surgery on Visual Outcomes for Rhegmatogenous Retinal Detachment Repair: A Meta-Analysis
8
Retina. IMPACT OF DURATION OF MACULA-OFF RETINAL DETACHMENT ON VISUAL OUTCOME
9
PubMed. Duration of face-down positioning after macular hole surgery: a comparison between 1 week and 3 days
10
PubMed Central. Timing and outcomes after silicone oil removal in proliferative vitreoretinopathy: a retrospective clinical series
11
PubMed Central. Anatomical results and complications after silicone oil removal
12
PubMed Central. Paediatric retinal detachment: a review
13
Ophthalmology Science. Vitreoretinopathy-Associated Pediatric Retinal Detachment Treatment Outcomes: An IRIS Registry Analysis
14
Taiwan Journal of Ophthalmology. Advances in small-gauge vitrectomy