Cataract is a very common eye condition. The primary cause of the disease is age-related changes in the lens. The transparency of the lens directly affects the sharpness of vision. The world appears blurred to the patient, as if viewed through clouded glass. In some cases, altered colour perception is also observed.

Amblyopia, or "lazy eye," is one of the most common causes of reduced vision in children. In this ophthalmological condition, vision is reduced in one eye. It is generally a complication of other ophthalmological conditions: strabismus, high-degree hyperopia, and others. As a result, the brain receives two different images from the two eyes. To avoid the confusion this creates, it begins to ignore signals from the "weaker" eye.

From birth, we come to understand the world through vision. The information the eye transmits to the brain forms our picture of the surrounding world — which is why it is so important for a child's vision to be clear and sharp. One of the most common causes of deteriorating vision is astigmatism.

A child cannot raise the eye upwards, and when looking to the side, the eyeball involuntarily moves down?

Chalazion is a condition of the upper eyelid that causes the patient a lot of discomfort and trouble.
In common parlance, chalazion is known as a "hailstone" because it looks like a piece of hail that got into the eye — unpleasant, painful, and unsightly.

Congenital glaucoma is one of the most serious conditions in newborn children, rapidly leading to complete loss of vision. At first glance, it appears relatively rare — occurring in 1 in 10,000 newborns. However, of all children who have lost their sight completely, one in ten did so specifically as a result of congenital glaucoma.

Strabismus in newborns can be identified after 6–7 months of age.
Before this point, the infant's eyes may deviate, and this is not considered pathological. The reason is that the visual pathways, visual perception, and fixation ability have not yet fully developed at this stage.

Convergent strabismus in children can appear at different ages.
Congenital convergent strabismus appears before the age of one year. If it is acquired convergent strabismus, it will appear after 2–3 years of age. In congenital strabismus, surgical treatment will necessarily be the first step.

Dacryocystitis is inflammation of the lacrimal sac caused by congenital narrowing and/or obstruction of the lacrimal drainage pathways. This suppurative-inflammatory process is one of the most common reasons for parents to seek ophthalmological care for their children in the first years of life.

Diabetic retinopathy is a vascular complication of diabetes mellitus that leads to complete blindness. The condition develops in both type 1 and type 2 diabetes mellitus as a result of increased fragility of the blood vessels of the eye. Vascular changes in diabetes mellitus typically begin to appear 5–10 years after the onset of the disease; after 10–15 years, more than 85% of patients suffer from retinopathy.

The eyeball is covered with a tear film that performs many functions.
First, it acts as a shield and protects the cornea from drying out and from microbes.
Second, it is important for proper refraction of light rays and clear vision.

Duane–Türk syndrome is a rare congenital disorder in which horizontal eye movements are limited due to abnormalities in how the eye muscles function. This condition can make it difficult to control gaze and may cause ophthalmic complications, including amblyopia, a reduction in visual acuity.

In hyperopia, the eyeball is shorter than normal. As a result, after light rays carrying an image enter the eye and are refracted, the focal point falls behind the retina rather than on it, as it should in normal vision. This produces a blurred image on the retina, and the child sees nearby objects as unclear.

Myopia, or short-sightedness, is an eye condition that today develops particularly frequently in children and adolescents. The child begins to see distant objects poorly. Ophthalmologists worldwide now refer to the growth of childhood myopia as virtually a "true epidemic."

Nystagmus is not simply involuntary eye movements — it is a complex condition in which the eyeballs make uncontrolled movements (horizontal, vertical, or rotatory) that the person cannot control or stop. The problem affects not only appearance but frequently leads to a significant reduction in visual acuity and makes fixation of gaze difficult.

Cataract is a condition that causes significant deterioration of vision and, if left untreated, can lead to blindness. In children, cataract is most commonly a congenital condition, though acquired forms also occur.

One of the most complex problems in pediatric ophthalmology is paralytic strabismus. Unlike other forms of this condition, it is not simply caused by a muscular imbalance, but by a disruption in the function of the nerves that control eye movement.

Partial optic nerve atrophy is a condition that requires a particularly careful and timely approach to treatment. The pathology involves the degeneration of the nerve bundles that form the optic nerve, which transmits information from the eyes to the brain. Atrophy results in a portion of visual information failing to be processed by the corresponding areas of the brain, leading to significant deterioration of vision.

Ptosis is a fairly common condition involving drooping of the upper eyelid. It is caused by a range of factors and in most cases affects only the patient's appearance.

Strabismus affects approximately one in every twenty adults. It is more difficult to correct than in children, since the visual system is already fully formed in adults and less responsive to change. Nevertheless, at Crystal Vision clinics we successfully treat adult strabismus and its complications. For each patient we select individualised treatment methods that allow this ophthalmological condition to be effectively corrected.