Photocoagulation in Turkey: what it is and how it works
Photocoagulation is a laser treatment of the retina, the light-sensitive layer at the back of the eye. A focused beam, most often from an argon, green or similar solid-state laser, is absorbed by pigment in the retina and the tissue beneath it. The heat creates a tiny controlled burn that seals, shrinks or scars the tissue it touches. That scar can close a leaking blood vessel, reduce the oxygen demand of unhealthy retina so that abnormal new vessels stop growing, or weld the edge of a retinal tear to the wall of the eye. The treatment is done in an outpatient room with a slit lamp or a head-mounted laser, takes minutes rather than hours and does not need an incision.
This guide explains how photocoagulation works for different conditions, what the evidence says, what a session costs compared with the UK, US and Germany, what recovery and results look like and how to check a clinic. It is offered by many retina specialists in Turkish eye hospitals.
Which eye conditions are treated with photocoagulation?
The laser is used for several retinal problems, and the pattern of burns differs for each. In diabetic retinopathy, high blood sugar damages small vessels; focal or grid laser treats leaking vessels near the macula, while panretinal photocoagulation (PRP) places many spots across the outer retina when abnormal new vessels, called proliferative disease, are growing. In retinal vein occlusion, laser may be used for leaking areas or new vessels. Around a retinal tear or an area of weak retina (lattice degeneration), a ring of laser burns, called retinopexy, helps prevent a detachment. Other uses include retinopathy of prematurity in newborns, central serous chorioretinopathy in selected patients and some tumours and vascular abnormalities.
It is not used for every retinal disease. Macular degeneration of the wet type is now mainly treated with injections, and a retinal detachment that has already happened usually needs surgery, discussed in our guide to retinal detachment surgery. It also does not treat misaligned eyes, a muscle problem dealt with by strabismus surgery.
Does photocoagulation work? What the evidence says
For its main indications, yes. Landmark trials in the 1970s and 1980s, the Diabetic Retinopathy Study and ETDRS, showed that timely panretinal photocoagulation reduces the risk of severe vision loss from proliferative diabetic retinopathy by about half, and it remains the reference treatment for this condition. Laser around a fresh retinal tear lowers the chance of it progressing to a detachment, and treatment of leaking vessels near the macula reduces the risk of further vision loss from diabetic macular oedema.
The important qualifier is that photocoagulation aims to preserve sight, not to restore it. It usually stabilises vision rather than improving it, and PRP can reduce night vision and side vision as the price of protecting the central retina. For diabetic macular oedema, injections of anti-VEGF medicine have become the first-line treatment in many centres because they can improve vision, with laser kept for selected cases. A trustworthy specialist explains this balance and ties it to your scan findings.
Photocoagulation cost in Turkey compared with the UK, US and Germany
The figures below are approximate ranges per eye per session, not hospital quotes. The price depends on the type of laser, the number of burns (a focal treatment needs far fewer than full panretinal treatment), whether imaging such as OCT or fluorescein angiography is included and how many sessions are planned. Each hospital confirms its own price in writing.
| Country | Approximate cost range per eye per session |
|---|---|
| Turkey | €150 – €900 |
| United Kingdom | €500 – €1,800 |
| United States | €800 – €3,500 |
| Germany | €400 – €1,500 |
What changes the price: a pattern laser that delivers many spots quickly costs more than a single-spot laser, panretinal treatment is usually done in two to four sessions, and a diagnostic work-up with retinal imaging is often billed separately. Ask whether the quote is per session or for the full course, and whether the follow-up check and any additional touch-up laser are included.
Laser, anti-VEGF injections or surgery: how do the options compare?
Which treatment is used depends on the condition. In diabetic eye disease, laser and injections are often combined; surgery is kept for bleeding that does not clear or for scar tissue pulling on the retina, as in vitreoretinal surgery. Photocoagulation is also different from laser used for other eye conditions such as glaucoma, for example laser trabeculoplasty, which treats the drainage angle at the front of the eye.
| Treatment | Best suited to | Typical limits |
|---|---|---|
| Laser photocoagulation | Proliferative diabetic retinopathy, retinal tears, selected leaking vessels | Stabilises rather than restores vision; can reduce night and side vision |
| Anti-VEGF injections | Diabetic macular oedema, wet macular degeneration, vein occlusion | Repeated visits, often monthly at first; ongoing cost |
| Vitrectomy surgery | Non-clearing vitreous bleeding, traction or detachment | Operating theatre, anaesthesia and longer recovery |
Who is a good candidate for photocoagulation, and who is not?
Candidates are people whose retina specialist has found a treatable change on examination and imaging, such as new vessels, a retinal tear or leakage near the macula. You must have a clear enough view into the eye, which is why bleeding or a dense cataract can delay laser. You are less suited if the retina is already detached, if the macula is mainly damaged by other disease or if the problem is better managed by medicine. Pregnancy, uncontrolled blood pressure and poorly controlled diabetes do not rule out laser but change the plan, and your overall control of blood sugar, blood pressure and cholesterol is as important to your eyes as the laser itself. Bring your diabetes history, recent HbA1c and any earlier retinal scans.
Photocoagulation step by step: anaesthesia, duration and technique
Dilating drops widen the pupil and numbing drops are applied; some surgeons add a small injection around the eye if extensive treatment is planned. A contact lens, which gives the surgeon a magnified view, is placed on the eye, or a head-mounted laser is used. You see flashes of bright light and may feel a pinch or ache with each burn, particularly for panretinal treatment. A focal treatment may take 5 to 10 minutes; panretinal treatment takes 15 to 30 minutes per session and is often divided over several visits to reduce discomfort and swelling. A retinal tear is usually treated in a single short session. You can go home straight away but cannot drive on that day because of the dilation and bright light.
Photocoagulation recovery and how long to stay in Turkey
Vision is blurred and light-sensitive for several hours, and you may see spots for a day. Afterwards a dull ache or headache is common and usually settles with simple painkillers. Most people resume light activities the next day, with sunglasses for glare. Avoid heavy lifting and strenuous exercise for a few days if you were treated for a tear. After panretinal treatment, some people notice reduced night vision, a narrower visual field or slight dimness, which can persist. Your doctor checks the retina at one to two weeks and again after several weeks to decide whether more laser is needed.
For one session you can plan 2 to 3 days in Turkey, with a check the next day. For a full panretinal course allow 5 to 7 days so that the sessions are spaced safely, or ask the clinic whether the later sessions can be done at home with your own eye doctor. Flights are normally fine after the check; report sudden floaters, flashes or a shadow in vision urgently.
Photocoagulation before and after: what are realistic results?
This is not a treatment whose results you see in the mirror. What changes is the retina: scans afterwards show small pale laser scars, new vessels shrinking, leakage reducing or a tear surrounded by a firm scar. What patients notice is that their vision is held steady, not that it sharpens. Some experience a small loss of night vision or peripheral vision, a trade accepted in order to prevent worse loss. Follow-up photographs and OCT scans are the right way to judge success. Be wary of any clinic that promises restored sight from retinal laser.
Risks and side effects of photocoagulation
Common effects are temporary blur, light sensitivity, aching and floaters. Less common are reduced night vision, a smaller field of vision, difficulty adapting to the dark, swelling of the macula after treatment and, with panretinal treatment, changes in colour vision. Rare problems include accidental burns near the macula, scarring that pulls on the retina, a rise in eye pressure and bleeding. Laser does not always prevent progression, so some patients need more laser, injections or surgery later. Guidance from the NHS and the Royal College of Ophthalmologists stresses regular screening after treatment, because diabetic eye disease can continue to change. Tell the team about any sudden floaters, a curtain across vision or a pain that grows worse.
How to choose a retina specialist and hospital, and questions to ask
Choose an ophthalmologist who treats retinal disease regularly, in a hospital that has OCT, fundus photography and fluorescein angiography so that treatment is planned from images. Red flags include a quote without any examination, laser for every eye regardless of findings, promises of restored vision, no discussion of injections as an option and no plan for repeat checks. Read how our process works and send your reports through the free quote page.
- Which condition and which part of my retina is being treated?
- Is laser, an injection or both recommended, and why?
- How many sessions are planned and is the price per session?
- Which scans are done before and after, and are they included?
- What changes in night or side vision should I expect?
- Who reviews me at home, and what symptoms need urgent care?
Hospitals with Eye Surgery in Turkey
Frequently asked questions
It is a laser treatment of the retina. The laser creates tiny controlled burns that seal leaking vessels, reduce abnormal new vessel growth or weld a retinal tear in place.
For proliferative diabetic retinopathy and retinal tears it lowers the risk of serious vision loss. It usually protects sight rather than restoring it, and injections are first choice for some conditions.
Approximately €150 to €900 per eye per session in Turkey, against €500 to €1,800 in the UK. The price depends on the laser, the number of burns and sessions, and whether imaging is included.
Scans show small laser scars and reduced leakage or new vessels. Most patients notice stable vision rather than sharper vision, and some notice weaker night or side vision.
Numbing drops are used, but you may feel flashes and a pinch or ache with each burn, more so in panretinal treatment. Aching afterwards usually eases with simple painkillers.
Blur and light sensitivity last hours, and most people resume light activity the next day. Avoid heavy lifting for a few days if treated for a tear, and have a follow-up scan after one to two weeks.
A retinal tear is usually treated in one session. Panretinal treatment is commonly split into two to four sessions, and some patients need top-up laser or injections later.
No. It aims to stop further loss. Vision already lost to retinal damage does not normally return, which is why early treatment matters.
No. Laser burns the retina to seal or shrink diseased tissue, while injections place medicine in the eye to reduce leakage. They are often used together in diabetic eye disease.
For a single session plan 2 to 3 days with a check the next day. A full panretinal course may need 5 to 7 days or can continue with your own eye doctor at home.