Glasses after cataract surgery: timing and choice

After cataract surgery, new glasses are generally prescribed 3 to 4 weeks after the operation, at the one-month check-up. When both eyes need to be operated on, 1 to 2 weeks apart, the definitive prescription waits for the one-month check-up that follows the second eye. The type of lenses then depends on the implant that was fitted, and the renewal rules provide for an exception in the year following the operation.

KEY POINTS

TIMING

How long should you wait before getting new glasses?

At the practice, the guideline is 3 to 4 weeks. The correction is measured at the one-month check-up, and the prescription is given at that visit if it is useful. This is not an extra visit: it belongs to the usual schedule after cataract surgery, which includes a check-up on day 2, one at one month, then one at one year, unless there is a particular reason to do otherwise. The details are on the recovery schedule after cataract surgery page.

Why not order lenses in the very first week? Because the eye has not finished stabilising: the micro-incision is closing, the inflammation is subsiding under the effect of the eye drops, and the implant is finishing settling into the capsular bag. As long as these three things are changing, the measurement of vision can vary from one day to the next, and a pair ordered too early may well turn out to be wrong.

Published studies report timescales that are sometimes shorter. After uncomplicated surgery with a monofocal implant, an Australian team found a stable refraction as early as the second week McNamara 2019. In myopic patients, a prospective study found no difference between the measurement at one week and the one at one month Feng 2024. The practice’s guideline, which is more cautious, makes the prescription coincide with an examination that is already scheduled. These timescales depend on your case.

If both eyes need to be operated on

The second eye is operated on 1 to 2 weeks after the first. The definitive prescription is then made 3 to 4 weeks after this second operation, at the check-up that follows; the first eye is re-examined at these same check-ups. A prescription drawn up earlier would hold for only a few weeks, since the correction on the second side is going to change.

• From the day of the operation to day 2: blurred vision, prickling. No measurement for glasses makes sense at this stage; the day 2 check-up examines the eye, not the correction.
• 3^rd and 4^th weeks: vision has stabilised, the correction is measured and the prescription given at the one-month check-up, or at the one that follows the second eye.
• At one year: the annual check-up examines the eye and the correction. Apart from any discomfort, there is no reason to change lenses in the meantime.

BETWEEN THE TWO EYES

What can you do between the operations on the two eyes?

During the interval of 1 to 2 weeks between the two operations, the operated eye no longer has the same correction as the other one, and your old glasses no longer suit it. This imbalance is temporary; it is more marked the stronger the starting correction was, and it often goes unnoticed in people who need only a weak correction. Several solutions are possible, to be chosen with the ophthalmologist and the optician:

• going without glasses for activities where the operated eye is enough;
• keeping your old glasses if they remain comfortable;
• having the optician replace the lens on the operated side with a neutral lens;
• using simple reading glasses, as a stopgap, for near vision.

Usual during these few days: a feeling of imbalance, eye strain at the end of the day, more vivid colours on the operated side. To report to the practice: double vision that sets in, dizziness, persistent difficulty judging distances, a misstep on a staircase. Driving is governed by a separate rule, detailed on the page when to drive after cataract surgery.

DEPENDING ON THE IMPLANT

Which glasses, depending on the implant fitted?

The implant replaces the natural lens, but it does not accommodate: its power does not change with the distance you look at. The distance for which it is calculated is therefore decided before the operation, and this choice largely determines the glasses you will need afterwards.

Monofocal implant

A monofocal implant gives clear vision at a single distance. Set for distance vision, which is the most common choice, it most often leaves near vision blurred: glasses are needed for reading, and often for screens. In the Australian study cited above, the majority of patients said they were bothered by their uncorrected near vision McNamara 2019. A small distance correction may be added to this if some astigmatism remains.

EDOF and multifocal implants

A meta-analysis of nine comparative studies reports that, with EDOF implants, uncorrected intermediate and near vision is better than with monofocal implants and independence from glasses is more frequent, at the cost of more frequent halos and reduced contrast sensitivity Liu 2019. For multifocal implants, a Cochrane review of 20 randomised trials involving 2,061 people reaches the same conclusion: comparable distance vision, better uncorrected near vision, lower dependence on glasses, but glare and halos reported markedly more often de Silva 2016. Its authors conclude that the trade-off depends on how much importance each person attaches to being free of glasses.

A back-up pair often remains useful for small print, even with these implants. The choice is discussed before the operation: see choosing your implant and EDOF implants and night-time halos.

If some astigmatism remains

Pre-existing astigmatism is not corrected by a standard implant: it can be corrected by a toric implant, chosen before the operation from the measurements of the pre-operative assessment, or by glasses afterwards. A low residual astigmatism often gives clear but slightly stretched distance vision, and some difficulty with small print. It is measured at the one-month check-up and then goes into the prescription.

If you were short-sighted

The implant is calculated to correct the myopia as well. Once the implant is set for distance vision, the former myope can no longer read up close by taking off their glasses, as they were used to doing: this is often the most badly received surprise of this period. The question arises before the operation, when the implant is chosen: some people prefer to deliberately keep a small amount of myopia so as to carry on reading without glasses, accepting a distance correction. The answer depends on how you use your eyes: driving, working at a screen, reading.

TYPE OF LENSES

Progressive lenses after cataract surgery

Progressive lenses or simple reading glasses? Both are possible, and the choice depends above all on what remains to be corrected for distance.

Reading glasses are enough if distance vision is good without correction and putting them on and taking them off does not bother you: this is the simplest and least expensive solution. Progressive lenses are more comfortable if you already wore them before the operation, if a distance correction or some astigmatism remains, or if your day has you constantly switching from far to near.

Two practical points, often discovered after the fact. Getting used to new progressive lenses takes a few days, even for someone who already wore them: the correction has changed, and the zones of the lens no longer fall at the same place in your line of sight. And this is the lens for which a premature measurement is the most costly, a poorly fitted progressive being harder to tolerate than a poorly fitted single-vision lens. All the more reason to wait for the one-month check-up.

For screen work, there are also so-called proximity (occupational) lenses, which favour intermediate and close distances; they are not suitable for driving. The prescription states the correction to be obtained; the type of lens is then chosen with the optician.

IN EVERYDAY LIFE

What about sunglasses?

Sensitivity to light is common in the first few weeks: the lens, which had become opaque, used to filter part of the light, whereas the implant that replaces it is transparent. Non-corrective sunglasses, preferably wraparound ones, are enough while waiting for the definitive prescription. The summer precautions, including swimming, are set out on the page sun and holidays after cataract surgery.

REIMBURSEMENT

What reimbursement is there for glasses after cataract surgery?

According to ameli.fr, from the age of 16, the renewal of a set of glasses falls due after 2 years. This interval is reduced to 1 year when visual performance deteriorates, and there is no minimum interval for certain particular medical situations. The arrêté du 3 décembre 2018 (a French ministerial order) on the reimbursement of medical optical devices expressly cites, among these situations, cataract surgery carried out less than 1 year ago: the lenses can then be renewed without waiting, on presentation of a new prescription from the ophthalmologist; have the optician and your supplementary health insurance confirm the cover before ordering.

A person who got a new pair last year therefore does not have to wait for the anniversary date of their lenses: it is the prescription from the one-month check-up that opens the renewal. The exception concerns the interval, not the level of cover, which remains that of your equipment and your contract.

Two ranges exist. Class A, known as “100 % Santé” (the name of the French scheme for fully reimbursed optical equipment), is reimbursed with no out-of-pocket cost for the insured person who holds a “responsible” supplementary health insurance contract; class B has free pricing, with a reimbursement that depends mainly on the supplementary health insurance contract (service-public.gouv.fr). A prescription for corrective lenses is valid for 5 years from age 16 to 42 and for 3 years beyond that.

In practice, before ordering

• bring the prescription from the one-month check-up and tell the optician the date of the operation;
• have the optician confirm that early renewal applies to your case;
• ask for a quotation, and for a written estimate from your supplementary health insurer, especially for class B;
• if the second eye has still to be operated on, wait: the prescription will be done again afterwards.

The cost of the operation falls under a different budget, detailed on the page price of cataract surgery.

NORMAL OR NOT

What is normal, and what should prompt a consultation

Waiting three to four weeks gives time for several unpleasant sensations to pass. You still need to know which ones are expected:

• blurred near vision with an implant set for distance: this is the very reason for the future prescription;
• vision that fluctuates during the day, often linked to temporary dry eye that artificial tears relieve;
• a gritty, grain-of-sand sensation, prickling, a slightly red eye in the first few days;
• more vivid colours and harsher light.

Should prompt a consultation without delay: severe pain that paracetamol does not relieve; a sudden drop in vision; a red, painful eye; a black curtain, flashes or many floaters appearing all of a sudden; thick discharge, eyelids stuck together, fever.

During the day, Monday to Friday, call the Cachan practice on +33 1 45 47 08 11. In the evening, at night and at weekends, the eye emergency departments see patients without an appointment. Blurred vision that fits neither of these two lists is still worth having evaluated: the page blurred vision after cataract surgery goes into the causes.

FAQ

Frequently asked questions

SOURCES

Scientific sources

1. McNamara P, Hutchinson I, Thornell E, et al. Refractive stability following uncomplicated cataract surgery. Clin Exp Optom. 2019;102(2):154-159. PMID: 30380588
2. Feng R, Wang M, Tao S, et al. Refractive stability and timing of spectacle prescription following cataract surgery in myopic eyes. Ophthalmic Physiol Opt. 2024;44(3):576-583. PMID: 38351864
3. Liu J, Dong Y, Wang Y. Efficacy and safety of extended depth of focus intraocular lenses in cataract surgery: a systematic review and meta-analysis. BMC Ophthalmol. 2019;19(1):198. PMID: 31477053
4. de Silva SR, Evans JR, Kirthi V, et al. Multifocal versus monofocal intraocular lenses after cataract extraction. Cochrane Database Syst Rev. 2016;12(12):CD003169. PMID: 27943250
5. Assurance Maladie. Lunettes et lentilles : quelle prise en charge ? ameli.fr, updated 13 January 2026. ameli.fr
6. Service Public. Lunettes et lentilles. Verified on 13 March 2026. service-public.gouv.fr
7. Arrêté du 3 décembre 2018 relatif à la prise en charge des dispositifs médicaux d’optique médicale (LPP, titre II, chapitre 2, point VIII.2). legifrance.gouv.fr

Further reading

• Recovery after cataract surgery: the complete schedule
• How long does recovery take after cataract surgery?
• What not to do after cataract surgery

Cachan practice · Tel. +33 1 45 47 08 11

Medical disclaimer

This article is intended as general information and does not replace a medical consultation.

The timescales given are the practice’s usual guidelines; they are adapted to each situation at the post-operative check-ups, and a correction may be prescribed earlier or later depending on how the eye evolves. The reimbursement rules cited are those read on ameli.fr and service-public.gouv.fr in September 2026, supplemented by the arrêté du 3 décembre 2018: these texts change, and only your optician and your supplementary health insurer can confirm what applies to your equipment. No decision to change a correction should be taken on the strength of an article: it rests on the measurement of your vision during an examination.