Do I Need to Stop My Eye Injections Before Cataract or Retina Surgery?
Eye Injections and Surgery Timing at a Glance
Usually, no. Eye shots are not a medicine you stop on your own. They keep your retina steady. The plan is normally to carry on with them and fit the surgery around them. The Academy describes these shots as a treatment for wet macular degeneration, retinal swelling, diabetic eye disease and blocked retinal veins, given on a schedule your eye doctor sets from how your eye responds.1 Your two doctors sort out the timing between them. Your job is smaller. Tell each one about the other, and keep the appointments you already have.
Before most operations you are handed a list of things to pause, so it is fair to assume the eye shots belong on it. They usually do not. The shot goes into the eye being treated, not into your bloodstream, and its job is to hold leaking down. Stopping it does not make surgery safer. It lets the leaking come back when your eye has the most to cope with.
This page explains how the timing is normally handled, so you can walk into your pre-operative visit with better questions. It cannot tell you what your own eye needs. That depends on what is being treated, how your eye behaves between shots, and which operation it is. If your clinic has already given you instructions, follow those, and use this page to understand them.
What 'Eye Injections' Usually Means Here
Most people reading this are on anti-VEGF shots. The medicine goes into the jelly of the eye (clinical: intravitreal, meaning inside the vitreous cavity) and damps down the signal that makes fragile vessels leak. The Academy explains that anti-VEGF medicine blocks VEGF, which reduces leaking abnormal blood vessels in the retina, and that it is used for wet age-related macular degeneration, macular swelling, diabetic retinopathy and retinal vein occlusion.1 Names you will hear include aflibercept, ranibizumab, faricimab and bevacizumab. Bevacizumab is used inside the eye off-label, meaning it is not FDA-approved for this use.
Some people are on a steroid instead, either as a liquid shot or as a tiny implant that dissolves over months. These follow a different rhythm and interact with cataract surgery differently, because steroid inside the eye can raise eye pressure and speed up a cataract. That does not change the headline answer. The timing of a slow-release implant is a call only the doctor placing it can make.
When you ask whether to stop your shots, you usually mean 'should I skip the next one'. Your surgeon hears a question about treatment intervals. In practice the answer is almost never a stop. It is a nudge: bring the next shot forward, hold the usual date, or slot one in at the end of the operation. The real question is 'when', not 'whether'.
Why the Timing Around Surgery Matters
Any eye operation stirs up inflammation, and that is what a swollen retina least needs. The best evidence is in diabetic swelling. In a study by Starr and colleagues of 37 eyes that had at least one anti-VEGF shot for diabetic macular swelling in the six months before cataract surgery, 17 of the 37 developed new or worse swelling afterwards, and central retinal thickness in those eyes measured about 350 micrometers at one month.2 Vision across the group still improved from before surgery to after, and vision did not differ significantly between eyes whose swelling flared and eyes whose did not.2 The flare is common and the operation is still usually worth having. The timing plan exists to blunt it, not to talk you out of surgery.
For surgery on the retina itself, a shot beforehand is often part of the plan. A 2023 Cochrane review of vitrectomy for complications of proliferative diabetic retinopathy found that an anti-VEGF shot given before or during surgery lowered early bleeding into the eye afterwards from about 31 of every 100 eyes to about 12 of every 100, drawing that result from 14 trials covering 1,038 eyes, on moderate-certainty evidence.3 The same review reported repeat surgery for that bleeding in about 4 of every 100 against about 13 of every 100, but from only 4 trials covering 207 eyes and on a confidence interval wide enough to include no real difference.3 The same review found better vision six months after surgery in the injected eyes, on low-certainty evidence.3 If vitrectomy is booked, expect to be offered an extra shot rather than told to skip one.
The clearest argument against a self-declared pause is what happens when treatment lapses for months. In a Suzhou study of wet macular degeneration, 102 eyes whose shots were interrupted for at least eight weeks had worse vision a year later than 121 eyes treated continuously (0.71 against 0.52 on the logMAR scale, where higher is worse), even though retinal thickness recovered in both groups.4 A study by Nassisi and colleagues of 298 patients found a smaller effect, a mean loss of 4.85 letters on the eye chart in 215 patients delayed about 103 days against 3.63 letters in 83 patients kept near schedule, a gap that was not statistically significant.5 Read together: a few weeks is usually recoverable, a few months often is not.
How the Two Doctors Usually Plan It
For cataract surgery there are three common patterns, and the choice depends on how active your retina is. Some clinics bring the shot forward to about a week before. Some give it at the end of the operation. Some hold the usual date and watch more closely afterwards. In an 83-eye comparison, the 21 eyes with diabetic swelling injected about a week before cataract surgery showed no significant rise in central retinal thickness afterwards, while the 19 eyes injected during the same session did, leading the authors to suggest that injecting beforehand may limit swelling better than injecting at the same time.6 That is one modest study, not a settled rule, so clinics differ.
For vitrectomy the gap between shot and operating room is measured in days, and it is deliberate. Too short, and the vessels have not quieted. Too long, and scar tissue can tighten, making the surgery harder. In a randomised trial of 156 patients, 125 of them followed for six months, giving bevacizumab 5 to 10 days before vitrectomy gave better final vision than giving it 1 to 3 days before, and the 1-to-3-day group was 3.90 times as likely to lose at least one line of vision.7 This is timing you cannot manage yourself, which is why 'should I skip it' is a phone call rather than a decision.
The table sets out what each plan is trying to achieve. None of them involves stopping treatment.
| Plan | What it means | Why a clinic might choose it |
|---|---|---|
| Shot about a week before cataract surgery | Next shot moved earlier | Quiets the retina before the eye is stirred up |
| Shot at the end of cataract surgery | One sitting, two procedures | Fewer visits, no gap in cover |
| Shot on the usual date | Nothing changes | The retina has been quiet and stable |
| Shot days before vitrectomy | An extra shot, not a skipped one | Less bleeding during and after surgery |
Ask which plan your clinic is using and write the dates down. Two clinics booking around each other is where most confusion starts.
Who Can Space Shots Out and Who Should Not
A short delay is easier to absorb when your retina has been dry, when your intervals are already stretched, and when the delay is a week or two rather than a season. A schedule your eye doctor changes is not the same thing as a gap you take yourself. The Academy's patient guidance says your ophthalmologist decides how many treatments you need based on how you respond to the medicine.1 The Nassisi figures are reassuring here, since a delay of roughly three months went with a loss of about one more letter on the eye chart than staying near schedule, and that difference did not reach statistical significance.5 A brief slip is not a catastrophe. It is still the clinic's call, not yours.
The balance tips the other way when your eye needs shots at short intervals, when fluid returns whenever the gap widens, or when you are still in the first months of treatment. Across 254,655 eyes in the Academy's IRIS Registry, each extra shot in the first year went with about two thirds of a letter of visual improvement at one year, so eight shots rather than none tracked with roughly five letters of gain.8 In that registry, average shots fell from 7.2 in year one to between 4.2 and 4.6 in years three to six, and average vision finished about 4.6 letters below where it started by year six.8 Those numbers describe groups over years, not you over one month. They do explain why clinics guard the schedule.
Sometimes the right answer is to delay the operation rather than the shot. Cataract surgery often disappoints in an eye with active leaking, fresh bleeding, or unsettled swelling, because the blur is coming from the back of the eye and not only from the lens. Retina clinics also want the view clear enough to scan. If your surgery date gets pushed, this is usually why, and it is a sign the plan is being made properly.
What to Settle Before Surgery Day
Bring details rather than a summary: which eye is being injected, what the medicine is called, how often you go, when your last shot was, and when the next is booked. Bring the retina clinic's name and phone number. If you are seen at two practices, assume neither has read the other's chart. That housekeeping settles most of the timing question in one visit.
Tell the retina clinic your surgery date as soon as you have it, not the week before. They may move your next shot, add one, or keep everything as it is. They will also want to know if a second operation is expected. In an Academy EyeNet article on cataract complications after injections, Dr. Kim said retina specialists can alert cataract surgeons if they suspect harm from an intravitreal injection.9 You are the fastest route between those offices, so be the one who makes the call.
Your eye shots rarely come off the list. Other things sometimes do, and they are worth naming. Prostate medicines such as tamsulosin are linked to floppy iris syndrome during cataract surgery, a known risk factor for complications, and surgeons have adopted technical adjustments for it.10 Name yours well before the day. Blood thinners are a separate conversation, and even there the default leans towards carrying on. For a minor eye procedure, the American College of Chest Physicians guideline supports continuing warfarin-type therapy rather than interrupting it, and suggests continuing an antiplatelet drug through the procedure, on low to very low certainty evidence, with the decision individualised.11 Never change a blood thinner on your own reading of that. The doctor who prescribed it decides.
Getting Back on Schedule After Surgery
After cataract surgery the rhythm usually picks up where it left off, often within a few weeks. Retina surgery is more variable, since what happens inside the eye changes what it needs afterwards. Ask for the next shot date before you leave the surgical centre, because a booked appointment is harder to lose than an instruction to call.
Expect closer monitoring for a few months after surgery. Nearly half the eyes in the Starr series, 17 of 37, developed new or worsening macular swelling after cataract surgery.2 That is why your clinic will want to look at the back of the eye again in the weeks afterwards, so ask when the next scan is booked. Extra shots in that window are not a sign the surgery failed. They are the plan working. Vision in that series improved overall despite the swelling, with no significant difference between eyes that flared and eyes that did not.2
Most people describe the combined stretch as busy rather than difficult. There are more appointments than usual for two or three months, the eye is redder for a week after each procedure, and reading vision takes a few weeks to settle. Arrange lifts in advance if you do not drive, since dilating drops last longer than people expect. If the schedule becomes unmanageable, say so: visits can often be combined.
Risks, Trade-Offs, and a Realistic Outlook
Serious infection inside the eye is the risk people fear most, and it is rare after a shot. Pooled analyses put it at about 197 of every 350,535 injections in one series and 52 of every 105,536 in another, in the region of 1 in every 2,000 injections.12 Rare is not never, so the same-day signs below matter. A history of shots is also linked to a modestly higher rate of trouble during cataract surgery. In one comparison of 197 previously injected eyes with the same number of matched control eyes, complications during the operation, including a tear in the back of the lens capsule, were noted in about 3 of every 100 injected eyes against none of the controls, and in a series of 62,944 operations that tear occurred in about 1.88 of every 100 of the 906 previously injected eyes against 1.04 of every 100 across the whole group.9 Surgeons handle this by adjusting technique, which is another reason they want your history.
A new lens deals with the cloudy lens and nothing else. If part of your blur comes from macular degeneration or diabetic swelling, that part stays, and it is better to hear this before the operation than after. Patient guidance from the Academy puts anti-VEGF results at improved vision for about 1 out of 3 people and vision at least held steady for about 9 out of 10, which is a different job from what a lens implant does.1 Many people still gain useful vision from cataract surgery, particularly in colour and contrast. Setting the expectation right stops a good result feeling like a bad one.
For most people on shots, surgery goes ahead, the shots carry on around it, and vision ends up better than it was. Those are population patterns, not a forecast for your eye, and nobody can promise you a particular result. What the evidence supports is narrower and still useful: the timing plan matters, the schedule is worth protecting, and both clinics should work from the same calendar.
When to Call Your Eye Doctor
After any eye shot or operation, some symptoms should not wait for the next appointment. Call your eye clinic the same day, or use the out-of-hours number, if you notice any of these.
- Vision that gets noticeably worse instead of slowly better
- Increasing pain in the eye, especially pain that wakes you or needs painkillers
- Growing redness, thick discharge, or a lid swelling shut
- A sudden shower of new floaters, flashing lights, or a shadow moving across your vision
- Light sensitivity that gets worse day by day
Most people who ring turn out to be fine, and the clinic would far rather see a false alarm than miss an infection on its first day. Same-day care is what keeps these problems treatable.
Ring ahead if your shot and your surgery land within a week of each other, if one clinic has told you something that contradicts the other, if you have missed a shot while waiting, or if your vision has changed on the waiting list. A changed symptom before surgery is worth reporting, because it sometimes changes the plan.
As a rule of thumb, call the clinic that did the most recent procedure, since the immediate problem is usually theirs to assess. For a timing question rather than a symptom, call the retina clinic, because your injection interval has the least flexibility in it. If you cannot reach either and your symptoms are on the same-day list above, go to an emergency eye service.
Common Questions About Shots and Eye Surgery
Usually not. A recent shot is routine for surgeons who operate on retina patients, and it is often arranged on purpose to fall shortly before the operation. What matters more is whether your retina is quiet enough for surgery to be worthwhile now. If your operation does get moved, it is far more likely to be because of active swelling or bleeding than because of the shot.
Some clinics do combine them, giving the shot at the end of the operation. It saves a visit and leaves no gap in treatment. One 83-eye comparison suggested that injecting about a week beforehand controlled diabetic swelling better than injecting in the same session6, though that was a single modest study rather than a rule. Ask which approach your surgical team uses, since both are reasonable and local practice varies.
Call the retina clinic and tell them, rather than waiting for your next visit. A single missed appointment is often absorbed without lasting harm, particularly if your eye has been stable. The concern is a gap that stretches into months, because vision lost over a long lapse does not always come back once treatment restarts. Getting rebooked quickly is the whole of the fix.
That is a question for the doctor who prescribed them, not one to settle yourself. Guidance for minor eye procedures leans towards continuing blood-thinning medicines rather than interrupting them, on low to very low certainty evidence, with the decision individualised.11 Tell your eye clinic what you take and let the prescribers agree. Never pause a blood thinner on your own.
Often yes, for a while. Eye surgery causes inflammation, and inflammation brings swelling back in an eye already prone to it. Close to half the eyes in one diabetic cataract series, 17 of 37, developed new or worse swelling after surgery, and vision across the series still improved overall.2 That is why extra visits and shots are commonly planned into the months afterwards, and why extra treatment during recovery is not a sign something went wrong.
It slightly raises the chance of certain technical difficulties, and surgeons plan for it. In a series of 62,944 operations, a tear in the back of the lens capsule occurred in about 1.88 of every 100 previously injected eyes against 1.04 of every 100 across the whole group, and a smaller study of 197 previously injected eyes found complications during surgery, including such a tear, in about 3 of every 100 of them against none of the 197 matched control eyes.9 The absolute risk stays low, and knowing your injection history lets the surgeon adjust technique in advance. That is a reason to declare your shots clearly, not a reason to avoid surgery.
More Questions People Ask Before Surgery Day
There is no single number that fits every eye. For cataract surgery, clinics commonly aim for the week before, or give the shot during the procedure. For vitrectomy in diabetic eyes, one randomised trial favoured a window of about 5 to 10 days before surgery over 1 to 3 days.7 Ask your surgeon for your own date rather than working from a general figure.
They decide together, and in practice the retina clinic sets the shot date while the surgical team works around it. What reliably goes wrong is each clinic assuming the other has the full picture. Give both offices the other's name, phone number and your appointment dates in writing if you can. That removes most of the risk of a clash.
Usually yes, including glaucoma drops and dry-eye drops, unless your surgeon has named a specific drop to pause. Bring the actual bottles, or a photograph of them, to your pre-operative visit, since brand names on a list are easy to misread. If you are given new drops to start before surgery, ask when to begin and whether they replace anything you already use.
Some short-lived blur after a shot is common, along with floaters and a red patch on the white of the eye that fades over a week or two. That is expected and it settles. Blur that keeps deepening, or that arrives with pain or new flashing lights, is different and needs a same-day call. If you are unsure which you have, ring and describe it.
- Should my next shot be moved, kept, or added to because of this surgery?
- What exact date do you want my last shot before the operation?
- Will a shot be given during the operation itself?
- Has my retina clinic been sent my surgery date, and has my surgeon been sent my injection history?
- How soon after surgery should my shots restart, and is that appointment already booked?
- How much of my blurred vision is from the cataract and how much is from my retina?
- What symptoms after surgery should make me call you the same day?
- Which clinic should I ring first if something changes?
- American Academy of Ophthalmology, EyeSmart patient education (2024). Anti-VEGF Treatments.
- Starr MR, Mahr MA, Smith WM, Iezzi R, Barkmeier AJ, Bakri SJ. American Journal of Ophthalmology (2021). Outcomes of Patients With Active Diabetic Macular Edema at the Time of Cataract Surgery Managed With Intravitreal Anti-Vascular Endothelial Growth Factor Injections.
- Dervenis N, Dervenis P, Sandinha T, Murphy DC, Steel DH. Cochrane Database of Systematic Reviews (2023). Anti-vascular endothelial growth factors in combination with vitrectomy for complications of proliferative diabetic retinopathy.
- Gu Z, Luo X, Sun R, Xi T, Zhang C. PLOS ONE (2025). Long-term effects of the COVID-19 lockdown on the structural and functional outcomes of neovascular AMD patients in Suzhou, China.
- Nassisi M et al. BMC Ophthalmology (2023). Delaying anti-VEGF therapy during the COVID-19 pandemic: long-term impact on visual outcomes in patients with neovascular age-related macular degeneration.
- Guven YZ, Isik MU, Ilguy S, Yozgat Z. International Journal of Ophthalmology (2025). Phacoemulsification surgery in patients with diabetic macular edema: should intravitreal anti-VEGF therapy be performed before or simultaneously with surgery?.
- Castillo J, Aleman I, Rush SW, Rush RB. American Journal of Ophthalmology (2017). Preoperative Bevacizumab Administration in Proliferative Diabetic Retinopathy Patients Undergoing Vitrectomy: A Randomized and Controlled Trial Comparing Interval Variation.
- Wykoff CC et al. Ophthalmology Science (2023). Impact of Anti-VEGF Treatment and Patient Characteristics on Vision Outcomes in Neovascular Age-related Macular Degeneration: Up to 6-Year Analysis of the AAO IRIS Registry.
- American Academy of Ophthalmology, EyeNet Magazine (2019). When Anti-VEGF Injections Lead to Cataract Complications.
- Seminara L. American Academy of Ophthalmology, EyeNet Magazine (2019). Cataract Surgery in Tamsulosin-Exposed Patients.
- American Academy of Ophthalmology, EyeNet Magazine, summarising Douketis JD et al, CHEST (American College of Chest Physicians guideline) (2022). Guidelines for Perioperative Management of Antithrombotics.
- Singh R, Davoudi S, Ness S. Graefe's Archive for Clinical and Experimental Ophthalmology (2022). Preventive factors, diagnosis, and management of injection-related endophthalmitis: a literature review.