When a doctor examines the fundus, they can see the retinal blood vessels, but these are only part of the eye’s blood supply. Deeper lies the choroid, which nourishes the outer layers of the retina and the macula, responsible for sharp central vision.
Людина кліпає в середньому кожні 4-6 секунд. Ця дія виконує захисну функцію: вберігає око від пилу та вітру, а також рівномірно розподіляє слізну плівку по поверхні ока, не даючи рогівці пересихати. Це можливо завдяки складній будові повіки – кожен її шар відповідає за окрему частину цього процесу.
A person blinks on average every 4–6 seconds. This action serves a protective function: it shields the eye from dust and wind and evenly distributes the tear film across the surface of the eye, preventing the cornea from drying out. This is possible thanks to the complex structure of the eyelid – each of its layers is responsible for a separate part of this process.
The cornea is the transparent front layer of the eyeball through which sunlight enters. It is the eye’s first barrier, protecting it from harmful external factors, from dust to ultraviolet radiation.
The iris is a thin, circular structure at the front of the eye that surrounds the pupil and determines its visible color. We usually perceive it simply as “eye color,” describe its shades, and admire it. But at the same time, it is living tissue that regulates the amount of light entering the eye every moment by changing the size of the pupil.
Every child should undergo a preventive medical examination once a year. Eye diseases are best detected and treated at an early stage. That is why it is highly recommended to make time for an eye examination with an ophthalmologist rather than waiting until your child is referred.
Sunlight consists of more than just visible light. It also contains ultraviolet (UV) radiation, which we cannot see or feel. However, over time, UV radiation can gradually damage the tissues of the eye.
The retina is one of the most important structures of the eye. It detects light, converts it into nerve impulses, and transmits them through the optic nerve to the brain, where visual information is processed.
Anti-VEGF therapy is a modern treatment for retinal diseases. It is based on medications that block the action of a protein called vascular endothelial growth factor (VEGF). This protein stimulates the growth of new, fragile blood vessels that can leak fluid or blood into the tissues of the eye.
It is crucial to monitor the condition of the retina — the thinnest light-sensitive layer of the eye, which lines its inner surface. The retina is responsible for image perception. There are many reasons why blood circulation or even the integrity of the retina can be compromised.