PRK aftercare guide
Preparation and recovery after PRK. General information that does not replace your individual care plan.
Read article ↗EYE HEALTH · DR. NUNO LOPES
Knowledge for better care
Information on eye conditions, care and guidance for your eye health.
Questions and Guidance
Questions and Guidance
Before and after surgery
Preparation, recovery and guides for each stage.
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Questions and Guidance
Vision and sport: see better, play better
Visual assessment, correction and eye protection tailored to the demands of each sport.
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Surgery
Cyclophotocoagulation for glaucoma
Micropulse and conventional G-probe laser: how they work, when they are considered and what to expect during recovery.
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Eye conditions
Floaters (myodesopsia)
Floaters are shadows that move across the field of vision and are very common with age.
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Eye conditions
Refractive error after surgery
Some refractive error may remain after eye surgery even when the procedure went as planned. Its significance depends on symptoms, achieved vision and individual needs. Not every case requires further surgery.
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Eye conditions
Posterior capsule opacification — the “dirty lens”
Months or years after cataract surgery, the capsule that holds the intraocular lens may become hazy, and vision becomes cloudy again.
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Eye conditions
Presbyopia
Presbyopia is the natural loss of near vision that comes with age.
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Eye conditions
Red eye
Red eye has many causes, almost always benign, such as conjunctivitis.
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Eye conditions
Age-related macular degeneration
AMD affects the macula, the part of the retina responsible for central, detailed vision.
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Eye conditions
Diabetic retinopathy
Diabetic retinopathy is the most common eye complication of diabetes.
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Eye conditions
Blepharitis
Blepharitis is a very common, often chronic inflammation of the eyelids.
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Eye conditions
Refractive errors: myopia, hyperopia and astigmatism
A refractive error exists when light entering the eye is not focused on the retina.
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Eye conditions
Dry eye
Dry eye occurs when tears are insufficient or of poor quality to protect the surface of the eye.
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Eye conditions
Cataract
A cataract is clouding of the eye’s natural lens. It can cause blurred vision, glare, difficulty seeing at night and changes in colour perception. These symptoms can also have other causes and should be assessed at an eye appointment.
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Eye conditions
Glaucoma
Glaucoma damages the optic nerve and, without treatment, causes vision loss that cannot be recovered.
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Eye conditions
Ocular hypertension and glaucoma: what is the difference?
High eye pressure is not the same as glaucoma. Understand the difference, the tests and the importance of personalised follow-up.
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Questions and Guidance
What is intraocular pressure, or eye pressure?
It is the pressure of the fluid inside the eye, measured in millimetres of mercury (mmHg).
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Questions and Guidance
How is open-angle glaucoma distinguished from angle-closure glaucoma?
The difference lies in the angle of the eye through which the internal fluid drains.
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Questions and Guidance
From what age, and how often, should I see an ophthalmologist?
In children, vision is monitored from birth by the paediatrician; without symptoms, the first ophthalmology appointment usually takes place between 2 and 3 years of age.
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Questions and Guidance
How is glaucoma treated?
The aim is to lower intraocular pressure to halt the progression of the disease.
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Questions and Guidance
How is glaucoma detected?
The most common type, open-angle glaucoma, causes no symptoms in the early stages.
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Questions and Guidance
What is glaucoma?
Glaucoma is a disease of the optic nerve that causes gradual loss of the visual field.
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Surgery
How do I choose an intraocular lens?
A guide to questions and criteria for discussing lens selection with your doctor.
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Surgery
Astigmatism and lens choice in lens surgery
Astigmatism correction, digital guidance and a comparison of monofocal, EDOF and trifocal lenses.
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Questions and Guidance
What are the risk factors for glaucoma?
The main risk factor is raised intraocular pressure.
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Questions and Guidance
Which symptoms should I watch for if glaucoma is suspected?
In the great majority of cases, glaucoma causes no symptoms until advanced stages.
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Questions and Guidance
I have relatives who are blind from glaucoma. Is the same likely to happen to me?
Not necessarily: the risk of having glaucoma is higher, but early diagnosis changes the outlook.
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Questions and Guidance
Is open-angle or angle-closure glaucoma worse?
There is no rule: it depends on the type of glaucoma, its stage and its treatment.
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Questions and Guidance
Can laser or surgery cure my glaucoma?
Generally not: they control pressure and halt progression, but do not restore lost vision.
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Questions and Guidance
Can vision or visual field lost to glaucoma be recovered?
No: vision loss caused by glaucoma is irreversible.
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Questions and Guidance
Does having glaucoma mean I will go blind?
No: with early diagnosis and treatment, only a minority of patients lose their sight.
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Questions and Guidance
How to use eye drops or eye ointment
Wash your hands, tilt your head back, pull down your lower eyelid and let one drop fall, without touching the eye with the bottle.
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Questions and Guidance
Low vision – Disability
Information on low vision, support and visual disability. Download the information document Association for Blind and Partially Sighted People –…
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Questions and Guidance
Driving licence: vision assessment
Vision is one of the conditions assessed to obtain or renew a driving licence.
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Questions and Guidance
Information for contact lens wearers
Read the care guide for contact lens wearers. Download the contact lens guide
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Questions and Guidance
After cataract surgery
After cataract surgery, follow the individual instructions given by your surgical team.
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Surgery
Ab externo canaloplasty
Canaloplasty is a glaucoma operation that aims to restore the eye’s natural drainage pathway instead of creating a new one.
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Surgery
Cataract surgery: difficult cases
Routine cataract surgery is now a highly predictable procedure, but some eyes require planning and additional techniques.
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Surgery
Refractive lens surgery
The natural lens, while still clear, is replaced with an intraocular lens chosen to reduce dependence on glasses.
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Surgery
Laser refractive surgery: FemtoLASIK and PRK
The laser reshapes the cornea to correct short-sightedness, long-sightedness and astigmatism and reduce dependence on glasses or contact lenses.
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Surgery
Glaucoma drainage implants
PRESERFLO, Ahmed FP7, PAUL and ClearPath: discover the implants I use and see how they help drain aqueous humour.
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Surgery
Non-penetrating deep sclerectomy
It is a non-penetrating glaucoma operation: the aqueous humour leaves the eye through a very thin natural membrane, without opening the inside of the eye directly.
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Surgery
Phakic intraocular lens implant
A lens is implanted inside the eye, without removing the natural lens, to correct high prescriptions.
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Surgery
Safer trabeculectomy
Learn about safer trabeculectomy and explore an animation of drainage controlled by a scleral flap, following an approach similar to Moorfields Safer Surgery.
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Surgery
Verion and Callisto
Alcon – VERION and ZEISS CALLISTO eye: digital guidance systems I use to support cataract surgery and alignment of toric intraocular lenses.
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