Corneal dystrophy (corneal dystrophy): symptoms, diagnosis and treatment
Clouding of vision and gradual deterioration of vision are often attributed to fatigue. However, corneal dystrophy can be the cause. We discuss how to recognize the disease, what diagnostic methods are used to detect it, and what helps maintain corneal transparency.
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What is corneal dystrophy?
Corneal dystrophy is a group of diseases in which the structure of one or more layers of the cornea is disrupted. This causes the eye to gradually lose transparency, and vision deteriorates. The disease often affects both eyes. It develops slowly, over years.
The cornea is the transparent front layer of the eye through which light passes. When its tissue becomes cloudy, images on the retina become blurred. The extent of the damage depends on which layer is affected and how far the process has progressed.
Which layers of the cornea are affected?
The cornea consists of several layers, and dystrophy affects different layers. In the epithelial form, the superficial layer is affected, in the stromal form, the middle layers, and in the endothelial form, the inner layer. When the inner layer is disrupted, it is called endothelial damage, which is responsible for draining excess fluid.
| Form | What is affected | Main symptoms | Tactics |
|---|---|---|---|
| Epithelial | Superficial layer | Pain, erosions, discomfort | Conservative treatment |
| Endothelial | Inner layer | Swelling, fog, decreased vision | Observation, surgery if progression occurs |
| Stromal | Middle layers of the cornea | Clouding, deterioration of vision | Individualized management, sometimes keratoplasty |
How does corneal dystrophy differ from other eye diseases?
Unlike infections and injuries, dystrophy develops without an external cause. The disease is related to the characteristics of the tissue itself. Inflammation of this membrane is acute, with pain and redness. Corneal dystrophy, on the other hand, progresses slowly. An examination by an ophthalmologist helps differentiate these conditions.
Another difference is symmetry. Dystrophy usually affects both eyes similarly. Infection, on the other hand, most often affects one eye and is accompanied by discharge. The doctor takes these details into account when making a diagnosis.
Symptoms of corneal dystrophy
Symptoms of corneal dystrophy depend on the type and stage. In the early stages, a person may not notice anything, and complaints gradually increase. Let's look at the main symptoms by group.
Clouding and decreased visual acuity
The most common symptom is clouding of the cornea, causing objects to appear blurry. A parallel decline in visual acuity occurs, especially noticeable when reading and working with small details. Glasses are of little help in this case, as the cause lies in the tissue itself.
Photophobia, lacrimation, and discomfort
Many people are bothered by photophobia: bright light causes a burning sensation and a desire to squint. This is accompanied by lacrimation and a feeling of dryness or discomfort. These complaints intensify in the evening and after visual strain.
Pain, foreign body sensation, and recurrent erosions
When the superficial layer is damaged, pain and a foreign body sensation, as if a speck of dust has entered the eye, occur. Sometimes recurrent corneal erosions develop when the epithelium is repeatedly damaged, especially in the morning. Such episodes are painful and require medical attention.
If you notice several symptoms at once, don't delay a visit to the doctor. Reasons to schedule an examination include:
- Vision impairment
- Blurred vision
- Photophobia
- Tearing
- Pain or stinging in the eye
- Sensation of sand or a foreign body
The earlier corneal dystrophy is detected, the greater the chances of preserving the transparency of the tissue. Therefore, even mild but recurring complaints deserve examination.
How is corneal dystrophy diagnosed?
Diagnosis of corneal dystrophy is based on a magnified examination and precise visualization of the tissue. The doctor assesses which layer is affected and the extent of the change in transparency. This determines further treatment.
- Slit lamp examination The primary method is biomicroscopy, a slit-lamp examination under high magnification. The doctor can see characteristic deposits, swelling, and areas of cloudiness. Even at this stage, an idea of the disease's form can be formed.
- Pachymetry, OCT and keratotopography The thickness of the membrane is measured using pachymetry, which is important for edema and endothelial forms. OCT of the anterior segment of the eye shows tissue layers layer by layer, and keratotopography assesses surface curvature. These methods clarify the diagnosis and help monitor progress.
- Corneal endothelial evaluation and differential diagnosis The corneal endothelium is examined separately, counting its cell density. Confocal microscopy is also used, which reveals tissue at the cellular level. These data help differentiate dystrophy from inflammation and other eye diseases.
How we select treatment for corneal dystrophy
Treatment for corneal dystrophy depends on the form, stage, and severity of the symptoms. In the early stages, conservative treatments are used, while surgery is used for more severe changes. The doctor develops a treatment plan tailored to the specific case.
Conservative therapy and support of the ocular surface
In the early stages, lubrication drops and ocular surface support products can help. For swelling, medications that reduce excess fluid in the tissue are used.
Conservative treatment of corneal dystrophy alleviates symptoms and slows progression, although it does not address the underlying cause.
Treatment of recurrent corneal erosions
With recurrent erosions, the goal is to help the epithelium heal and stay in place. This is achieved through the use of healing agents, protective lenses, and, as indicated, therapeutic procedures. Regular monitoring reduces the frequency of painful flare-ups.
Surgical methods and keratoplasty
When the tissue loses transparency and vision noticeably declines, surgery is considered. Modern keratoplasty allows for the replacement of only the affected layer. This accelerates recovery. The doctor determines the extent of the surgery based on the type of degeneration and the condition of the tissue.
Lamellar keratoplasty has fewer complications than complete keratoplasty. After surgery, the patient is monitored. Vision is gradually restored. The decision to perform surgery is made when other methods no longer preserve vision.
General information
Why patients choose us
We help accurately determine the type of dystrophy and tailor treatment to it. We perform diagnosis and monitoring in a single center. Below is what this means for patients.
Accurate diagnosis without unnecessary prescriptions
We use ocular tissue imaging, which reveals changes at an early stage. This eliminates unnecessary tests and random prescriptions. The patient receives a clear diagnosis after the first examination.
Images and measurements are saved in the patient's chart, making it easy to compare changes at the next visit. This helps distinguish a stable condition from progression and avoid unnecessary procedures.
Personalized treatment plan tailored to the type of dystrophy
We tailor the care plan to the specific type of dystrophy and stage. For one form, observation is sufficient, while for another, surgery is necessary. This approach saves the patient time and energy.
Monitoring and follow-up
After treatment begins, we monitor changes in corneal transparency and visual acuity. Follow-up examinations show whether the chosen strategy is working. If necessary, the plan is adjusted.
In our practice, early diagnosis yields the best results: when we see the first changes, we can select treatment that helps slow progression and preserve vision. Therefore, we emphasize accurate examination and a personalized care plan.
– ophthalmologist
FAQ
What is corneal dystrophy?
What symptoms may indicate corneal dystrophy?
Is it possible to cure corneal dystrophy without surgery?
When should you urgently see an ophthalmologist?
How is corneal dystrophy diagnosed?
How does keratodystrophy differ from keratopathy?
How often should you see a doctor?
Can I wear contact lenses if I have corneal dystrophy?
Clinical Guidelines of the Ministry of Health of the Russian Federation — https://cr.minzdrav.gov.ru/
MSD Manuals, Russian version — https://www.msdmanuals.com/ru/
Journal "Vestnik oftalmologii" — https://www.mediasphera.ru/journal/vestnik-oftalmologii
Russian Ophthalmological Journal — https://rjo.rmj.ru/
Scientific Electronic Library eLIBRARY.ru — https://elibrary.ru/
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Causes and risk factors
The causes of corneal dystrophy are divided into two broad groups. Some forms are inherited. Others appear with age or after previous eye diseases. Understanding the cause helps predict the course.
Hereditary forms of corneal dystrophy
Many types of dystrophy are inherited and appear in young or middle age. They are associated with the accumulation of abnormal deposits in the tissue, which interfere with the passage of light. If close relatives have had corneal dystrophy, the risk increases. It is useful for such patients to have their vision checked early.
Acquired and age-related changes
Some disorders appear over time, due to tissue aging or after eye surgery. Acquired conditions include bullous keratopathy, in which the tissue swells and becomes cloudy. Changes can also be triggered by trauma, inflammation, and certain common illnesses.
Age-related forms develop slowly and initially cause little discomfort. Over time, fog appears in the mornings, which subsides slightly by evening. This indicates swelling of the membrane and requires examination.