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ophthalmologist.
Surgery journey
The surgery journey: Questions and Answers
From the first consultation to the last follow-up: what is measured and why, how to prepare, what happens on the day, and what a normal first week and first month actually look like.
From the first consultation to the last follow-up: what is measured and why, how to prepare, what happens on the day, and what a normal first week and first month actually look like.
General educational information. It does not replace an examination, and it cannot tell you what is happening in your own eyes.
Answers
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Surgery journey
The most useful thing a patient can do before surgery is understand the sequence, because it turns a set of instructions into something you can follow knowingly and question properly.
Individual recovery varies, and your surgeon's instructions take priority over anything general written here. Where an answer touches on what to do or not do, it says so.
The surgery journey questions and answers
Surgery journey
From the first consultation to the last follow-up: what is measured and why, how to prepare, what happens on the day, and what a normal first week and first month actually look like.
A vision correction consultation combines a refraction with a full eye examination and imaging of the cornea, and it ends with a discussion of whether surgery is appropriate and which technique fits your measurements.
The examination part is not a formality. It is where conditions that change the recommendation are found, and where an eye that should not be operated on is identified.
You should leave knowing three things: what your measurements are, what was recommended, and what the reasons were. If any of those is missing, asking for them is reasonable.
Bring your current glasses or the prescription for them, any contact lens details including the type and how long you wear them, a list of your medications, and any previous eye records or scans.
Previous records are more valuable than they sound. Corneal measurements taken a year ago let a clinician see whether anything is changing, which is information that cannot be recreated on the day.
A second opinion is reasonable whenever you are unsure, when two clinics recommend different procedures, or when a recommendation does not seem to follow from your measurements. It is not an insult to the first surgeon.
The most useful thing to take to a second opinion is the measurements from the first, not just the recommendation. Comparing measurements is more informative than comparing opinions.
Clinics generally look for a prescription that has been stable for a period rather than for a specific number, because operating on a moving prescription risks treating an eye that will not match the plan a year later.
How that stability is demonstrated varies: some clinics rely on your history of prescriptions, others ask you to be rechecked after an interval. If your prescription changed at your last two tests, say so at the consultation.
A refraction only establishes what prescription corrects your vision. It says nothing about corneal thickness, corneal shape, tear film or the health of the retina, and those are the findings that decide whether surgery is safe and which technique is appropriate.
A refraction can also be normal in an eye with a condition that has not yet affected central vision. That is the case for early glaucoma, for some retinal problems, and for mild keratoconus.
No. Eligibility depends on measurements that only an examination can produce, including corneal thickness and shape, tear film and the state of the retina. Any tool that claims otherwise is describing general patterns rather than your eyes.
What a knowledge base can do is tell you which factors are assessed and which questions to ask, so that the consultation is a conversation rather than a verdict you have to accept.
The clinician should tell you why, and what would change the answer if anything would: treating a dry surface first, waiting for the prescription to stabilise, or choosing a different procedure or a lens-based option. A refusal without a reason is an incomplete assessment.
A clinic declining to operate is a positive signal about how it works rather than a wasted appointment. It is also worth knowing that being unsuitable at one clinic does not mean the same at the next, because surgeons work to different limits.
A comprehensive eye examination covers vision and refraction, eye pressure, the external eye and eyelids, the cornea, and the retina and optic nerve, usually with dilating drops so the back of the eye can be seen properly.
It differs from an eye test for glasses in what it is looking for. A refraction asks what correction you need; a full examination asks whether anything about the eye is not healthy.
Corneal topography maps the surface shape of the cornea, producing a colour-coded elevation and curvature map that shows how regular the surface is and where the steep and flat areas lie.
It is the test that most often changes the recommendation, because it can reveal an irregular or suspicious pattern that a refraction alone would never show.
Corneal tomography measures the shape of the cornea in three dimensions, including the thickness profile across it, rather than describing the front surface alone.
The distinction matters because some corneal conditions are visible mainly in how the thickness changes from the centre outwards. Tomography shows that relationship; topography on its own does not.
Pachymetry is the measurement of corneal thickness. It is one of the central measurements in refractive planning, because it determines how much tissue is available to be removed.
The number that matters clinically is the predicted thickness that would remain after treatment, not the starting measurement on its own.
Dilating drops widen the pupil so the retina and optic nerve at the back of the eye can be examined properly. Without dilation a large part of the retina simply cannot be seen.
The drops blur your near vision and increase light sensitivity for several hours, which is why driving yourself home afterwards is a bad idea.
An eye pressure test measures the fluid pressure inside the eye, which is one of the main risk factors for glaucoma. It is quick and is done with a small instrument that touches the front of the eye after numbing drops.
A retinal photograph records the appearance of the retina, and it is used as a baseline so that any future change can be compared against something. An OCT scan goes further and images the retinal layers in cross-section.
A full examination with dilation usually takes substantially longer than a routine sight test, partly because some measurements need repeat readings and partly because the drops need time to work.
Ask the clinic when you book, and plan the rest of your day around not being able to drive. That is the practical part of the answer.
It is the measurement that produces your glasses prescription: the lens power that gives the clearest vision for distance. It is a vision measurement rather than a health check, which is why a refraction alone cannot detect glaucoma, retinal disease or a corneal problem.
This is the distinction worth holding on to when comparing appointments. An optician’s sight test normally includes a refraction and a look at the health of the eye; a surgical assessment adds measurements of the cornea and retina that a refraction cannot provide.
What this depends on
Whether the measurement was taken with the eye relaxed
It means you can see at twenty feet what a person with standard vision can see at twenty feet. It is a comparison against a reference, not a perfect score, and it says nothing about how well your eyes work together, your peripheral vision or the health of the eye.
A common misunderstanding is that 20/20 means nothing is wrong. People with early glaucoma, diabetic changes or a retinal problem often read the chart normally, which is exactly why the examination is more than the chart.
What this depends on
Whether the chart was read with one eye or both
Whether contrast sensitivity was also measured
Whether the reading was with or without your glasses
It maps your peripheral vision by presenting lights at different positions while you look straight ahead and press a button when you see one. It is used mainly to monitor conditions that affect side vision, particularly glaucoma, where the field can narrow before a patient notices anything.
Because it depends on your attention and reaction, a single result is read together with previous ones. A field test that looks slightly worse than last time is often a tired afternoon rather than a change, and a series of results over years is what shows a trend.
What this depends on
How rested and attentive you are during the test
Whether you have had the test before, for comparison
Whether the result matches the pressure and optic nerve findings
It is the microscope examination of the front of the eye with a narrow beam of light, which shows the cornea, the front chamber, the iris and the lens at magnification. It is also the instrument used to examine the retina with a lens held in front of the eye.
Most of what a clinician concludes about your eye comes from this examination rather than from a machine. The scans measure; the slit lamp is where the measurements are interpreted against what the tissue actually looks like.
What this depends on
Whether the pupil was dilated at the time
How the findings compare with previous examinations
With a combination of a symptoms questionnaire, the time it takes your tears to break up after a blink, staining of the surface with dye, and an examination of the eyelid glands. There is no single number that defines dry eye, which is why the assessment is a set of findings rather than one result.
The gland examination matters because a large share of dryness comes from the oil layer of the tear film rather than from its water content, and the treatment is different. A clinic that measures only tear quantity is measuring part of the problem.
What this depends on
Whether the eyelids were examined as well as the tears
Whether a questionnaire was used
Whether the assessment was repeated on another day
It measures how much tear fluid is produced over a set period using a small strip of paper placed inside the lower eyelid. It is one part of a dry-eye assessment and not a diagnosis on its own, because a normal tear volume can still leave the surface uncomfortable.
What this depends on
Whether anaesthetic drops were used, which changes what is measured
It maps how light is distorted as it passes through your eye, including distortions beyond the ordinary prescription, called higher-order aberrations. Some surgical planning uses it to decide whether a customised treatment is appropriate.
The measurement is genuinely useful in some eyes and not in others, and it is one of the things a clinic charges for. The question worth asking is whether the treatment it would change is one you are being offered, rather than whether the measurement is available.
What this depends on
Whether your aberrations are above the ordinary range
Whether your prescription is stable enough to plan around
Whether the platform supports a customised treatment
It measures how well you see objects that are faint rather than small. Two people can both read the 20/20 line and still differ in how well they see in fog, at dusk or in low-contrast light, and that difference shows up in this test.
Often one long appointment, sometimes followed by a second short visit before surgery. The second visit exists where the cornea needs to be re-measured on a different day, where a contact lens stop period has to be respected, or where the first set of measurements was equivocal.
A clinic that re-measures is not being inefficient. Corneal measurements taken a week apart are the ordinary way of knowing that the shape they plan to reshape is stable, and it is one of the few checks a patient can see happening.
What this depends on
How long you have been out of contact lenses
Whether the first measurements agreed with each other
An optometrist can detect signs of disease during an examination and will refer you onward, and the diagnosis and treatment of eye disease sits with an ophthalmologist, a doctor who has completed specialist training and can perform surgery.
This matters in a surgical clinic for a specific reason: ask who will be examining you and who will be operating. In some clinics the assessment is done by one practitioner and the treatment by another, which is not necessarily wrong, but you are entitled to know.
What this depends on
The training and licence of the person examining you
Whether they refer on when a finding needs specialist care
The cornea is measured, a lens design is chosen, and the lens is checked on the eye for fit, movement and vision. A proper fitting includes teaching handling and hygiene, and a review appointment to confirm the lens is still comfortable and the surface still healthy.
Contact lenses are a regulated medical device in most countries and are not one-size items. Buying lenses without a fitting means nobody has checked whether the lens sits correctly on your eye, which is where most comfort problems and some safety problems begin.
What this depends on
Your corneal curvature and tear film
How long you wear lenses each day
Whether you need astigmatism or reading correction in the lens
Because lens implants are chosen from it. The power of an intraocular lens depends on how long the eye is and how strongly the cornea focuses, so a measurement of eye length, called biometry, is taken before cataract or lens-replacement surgery.
What this depends on
Whether previous laser surgery has changed the cornea’s contribution
Whether the measurements were repeatable
Whether the same device was used as at a previous visit
Soft lenses are usually stopped for a few days before an assessment and rigid lenses for considerably longer, because contact lens wear changes the shape of the cornea and can make the measurements wrong.
The exact period depends on the lens type and on how long you have worn them. Tell the clinic what you wear when you book, rather than arriving and mentioning it, since a measurement taken too soon may need repeating.
Preparation is mostly about stopping contact lenses for the period you were given, arranging not to drive home, following any instructions about makeup, perfume and medication, and having someone available afterwards.
Clinics differ on details such as whether eye makeup should be avoided for a day beforehand. Follow your own clinic’s instructions rather than a general list, and get them in writing.
Eating normally is usually fine before laser vision correction, because sedation is rarely used. If your clinic plans to use sedation, it will give you fasting instructions, and those take priority.
Tea and coffee are not usually restricted before laser eye surgery. If you are taking anything to help you relax, or if your clinic has advised otherwise, follow the clinic.
Eye makeup is usually avoided immediately before surgery to reduce the chance of debris or bacteria reaching the treated surface. The period is a clinic instruction rather than a universal rule.
Perfume and similar products are restricted because airborne particles from them can affect the laser’s environment and, in some facilities, the treatment room’s air quality requirements.
It is a theatre requirement rather than a medical risk to you, which is why the rule can seem arbitrary and is still enforced.
No. Vision is typically blurred and light sensitivity is common immediately after treatment, so you need someone to take you home. The same applies after a consultation where your pupils were dilated.
It is worth having someone with you for the journey home and for the first evening, when vision can be blurry and the eye may be uncomfortable. It also means details of the aftercare instructions are heard by two people.
Tell the clinic about all of them, including anything bought over the counter and any supplements, with particular attention to blood thinners, acne medication such as isotretinoin, and medication for diabetes or autoimmune conditions.
Some medications affect the tear film, some affect healing, and some affect the measurements themselves. The clinic can only account for what it knows about.
All of them, including anything you take occasionally. Two groups matter most: medicines that affect bleeding, and medicines that affect healing or the ocular surface, such as some acne treatments and certain hormonal medicines.
Tell the clinic about supplements too. Several are sold as natural and are not inert, and the ones that affect bleeding are the ones a surgeon most wants to know about before an operation, however small.
What this depends on
Whether the medicine affects clotting
Whether it affects the tear film
Whether it is prescribed by another doctor who should be consulted
Tell the clinic and expect the decision to be theirs. A heavy cold with coughing or fever is a common reason to postpone, because it makes keeping still harder and it is better to operate on a person who is well.
The day usually follows a sequence: a final check and confirmation of consent, numbing drops, the procedure itself with the eye held steady and you awake, a short period of observation, and then going home with written aftercare instructions.
Both eyes are commonly treated in the same session, which is a question worth confirming in advance if you have a strong preference either way.
It is usually described as pressure or a sensation of something touching the eye rather than pain, because the eye is numb. Afterwards, grittiness, watering and light sensitivity are common for some hours.
People describe the experience quite differently from one another. What matters is that your clinic tells you what to expect and what to do if it is worse than that.
Arrange for someone to travel with you or to collect you. You should not drive yourself afterwards, vision is variable for some hours, and the clinic will be giving you instructions and drops while you are not at your sharpest.
What this depends on
How far you live from the clinic
Whether you will be given a sedative
Whether you have children or dependants to get home to
Expect vision that is improved but fluctuating, some dryness or grittiness, light sensitivity, and halos around lights at night. Drops are typically used on a schedule for a period afterwards.
Fluctuation is the part people are least prepared for: better in the morning, softer in the evening, or changing with how dry the eye feels. That is common and not a sign of failure.
Some blur is expected early and can come and go for weeks. Blur that is getting progressively worse, that is accompanied by pain, or that appears suddenly later on is not something to wait out.
A useful distinction is whether it varies with dryness and blinking. Fluctuating blur that settles after drops or a few blinks points towards the tear film, which is a different conversation from constant blur.
Light sensitivity is common in the first days and usually settles. Sunglasses help in the meantime, and the clinic will say how long it expects this to last.
Halos and glare are commonly reported early after laser surgery and often reduce over the following weeks and months as the surface settles. Persisting or worsening night vision symptoms should be assessed rather than assumed to be normal.
Postoperative dryness usually improves over months as the surface nerves recover, although the time varies between individuals and a pre-existing tendency can make it persist longer.
What shortens it in practice is treating it from the start rather than waiting: lubricants on the schedule you were given, and telling the clinic if it is not settling.
Vision usually settles over weeks to a few months, and the prescription is not considered final until it has stopped changing. That is why enhancement decisions are made later rather than sooner.
Showering is usually permitted early, with care to keep water and shampoo out of the eye. Rubbing the eye and letting water run into it are what the instructions are designed to prevent.
Washing the face is usually fine soon afterwards, but splashing water directly into the eye and rubbing around the eye are avoided for a period. Your clinic will give you the specific interval.
A single accidental rub is unlikely to cause harm, and the eye is usually more resilient than the instructions make it sound. Report it to the clinic if it was forceful or if your vision changed afterwards.
The instructions about not rubbing exist mainly because repeated rubbing in the early period can disturb healing. Rubbing becomes more of a concern after a flap procedure, which is why eye shields are sometimes used at night.
This information is for educational purposes and does not replace an examination by a qualified eye-care professional.
Surgery journeyRecovery & aftercare
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Some sudden eye symptoms need urgent assessment
This answer explains what the symptom commonly indicates. If it has come on suddenly, or is
accompanied by pain or loss of vision, seek urgent care rather than waiting for an appointment.
Contact the clinic if your vision is getting worse rather than better, if you have significant pain, if there is discharge, or if you have any doubt at all. Asking early is not a nuisance.
Sudden loss of vision, a curtain across the vision, or severe pain needs urgent assessment rather than an appointment request.
Follow-up usually starts with a check the day after surgery or within a few days, then continues at intervals over months. The early visits look at healing; the later ones look at stability.
Ask how many visits are included in the price and what happens after they run out, because that is where clinics differ most and where the cost of a problem can quietly land on you.
Usually an antibiotic drop for a short period, an anti-inflammatory drop that is tapered over weeks, and lubricant drops for dryness that are used as needed. The exact combination and schedule are the clinic’s instruction for your eye and are not interchangeable between clinics.
Two things go wrong with drops most often: stopping the anti-inflammatory drop early because the eye feels fine, and using the bottles past their discard date after opening. Both are worth a line in the discharge instructions rather than a guess later.
What this depends on
Which procedure you had
How your eye responds in the first days
Any allergy or intolerance you have to a preservative
The shield is usually worn overnight for a period your clinic specifies, and sometimes at other times in the first days. Its purpose is to stop you rubbing the eye in your sleep rather than to protect it from light.
If you take it off and cannot remember putting it back on, the useful action is a phone call to the clinic rather than a guess. Most reported problems in the first nights are nothing, and the clinics prefer the call.
What this depends on
Which procedure you had, since surface treatment usually needs it longer
Because the tear film fluctuates, and the surface of the eye is the first lens light passes through. Vision that is sharper after blinking or after drops and softer when the eye is dry is a tear-film pattern rather than a problem with the treatment.
This is the reason a single measurement of vision in the early weeks is not a verdict. Clinics look at the trend across visits, which is also why they ask you to attend the follow-up visits on the days they specify rather than whenever it suits.
Many people use them regularly for the first weeks and then occasionally for months, and a minority use them long term. The pattern depends on your ocular surface before surgery as much as on the surgery itself.
In principle yes, for cosmetic or occasional use, once the eye has healed and the clinic has confirmed the surface is healthy. People who were corrected to good distance vision usually find they no longer need them, and reading lenses are the more common reason to wear one again.
What this depends on
How the surface healed
Whether you still need a prescription for any distance
What your clinic advises about when to be refitted
Rearrange it rather than dropping it. The early visits are where a problem that is easy to treat is found before it becomes harder to treat, and they are also where the record of your healing is built, which matters if anything changes later.
This information is for educational purposes and does not replace an examination by a qualified eye-care professional.
Surgery journeyRecovery & aftercare
Was this answer helpful?
Thank you. We use this to decide what to improve.
Some sudden eye symptoms need urgent assessment
This answer explains what the symptom commonly indicates. If it has come on suddenly, or is
accompanied by pain or loss of vision, seek urgent care rather than waiting for an appointment.
Contact the clinic that performed the surgery the same day. Redness and discomfort together, particularly with reduced vision or increasing pain rather than improving, are the pattern that needs to be looked at rather than waited out.
The general rule worth remembering from the whole of this section: discomfort that is improving is expected, and discomfort that is increasing is a reason to make contact. That distinction is more useful than any particular symptom list.
Screens are usually permitted soon after surgery, and the practical difficulty is comfort rather than safety. Dryness can make prolonged screen use tiring for a while.
Short sessions with deliberate breaks are easier in the first days than long stretches. Keeping the screen slightly further away and increasing the blink rate helps more than most settings.
Contact sports are deferred until the eye has healed, and the period depends on the procedure and on how much contact is involved. Protective eyewear is often advised when you return.
This is one of the areas where the procedure choice matters: a flap is more of a consideration for sports with a risk of a blow to the eye than a flap-free procedure is.
Light exercise is often allowed within days, while heavy lifting and anything involving a risk of being struck are usually deferred. Sweat in the eye and straining that raises pressure are the reasons.
Eye makeup is typically avoided for a short period after surgery so that particles and bacteria stay away from the treated surface. The clinic will give you the interval it uses.
Travel is usually possible soon afterwards, and the practical considerations are dryness on a flight and having your first follow-up where the operating clinic can see you.
For anyone travelling to Dubai for treatment, the sequencing of assessment, procedure and first check is worth agreeing before booking flights.
These answers describe what is generally true. They are not a diagnosis and they cannot say
whether a treatment is suitable for you, because suitability depends on measurements taken during
an examination. Only a qualified ophthalmologist who has examined you can decide.
A review of dry eye after LASIK, including the mechanisms involved and how other procedures compare in the published literature.
Used for Balanced comparison of dry-eye risk between procedures.
Link checked 22 September 2026
Dry Eyes After SMILE Peer-reviewed literature Peer-reviewed literature (via PubMed Central)
A review of ocular surface changes after SMILE, including how dry-eye signs and symptoms are measured and how they change over the first postoperative months.
Used for Explaining why dry eye is a key preoperative consideration.
A meta-analysis pooling several studies on dry eye after SMILE compared with femtosecond LASIK. It also documents where the included studies disagreed.
Used for The dry-eye discussion on the comparison and risks pages; Explaining that the evidence base is mixed rather than unanimous.
The UAE government’s own listing of the federal health authority and of the emirate-level health authorities, naming which part of the country each one covers.
Used for Explaining that more than one authority licenses healthcare in the UAE; Explaining which body to approach about a licensed facility.
A continuously updated clinical reference chapter covering SMILE indications, technique, outcomes and complications, written for clinicians.
Used for How the lenticule is created and removed; Indications and contraindications; Complication categories; Corneal biomechanics compared with flap-based surgery.
Hospital patient education describing what happens before, during and after small incision lenticule extraction. It describes the typical course of treatment rather than predicting any individual outcome.
Used for What SMILE involves, for readers arriving before the procedure pages; What the period immediately after treatment is typically like.
Link checked 23 September 2026
Related pages
These pages go deeper on the questions that usually follow this one.