Thursday, 28 July 2022
Retinopathy of prematurity is an eye disease that causes the growth of abnormal blood vessels in the retina, the light-sensitive layer of cells that lines the back of the eye and helps us see. In some countries it accounts for up to 10% of cases of childhood blindness, with higher prevalence in Southeast Asia, Latin America and sub-Saharan Africa.
Thursday, 07 July 2022
Pterygium comes from the Greek word pterygion which means "fin". Others relate it to its resemblance to the wing of an insect. The pterygium is a fold of the conjunctiva (layer of transparent tissue that covers the white part of the eye), fleshy and with triangular-shaped penetration that advances over the cornea, which usually forms from the nasal side (side of the eye close to the nose), and may reach the pupil area in both eyes.
Thursday, 30 June 2022
Sleep and rest are essential for human health, so getting the right amount of sleep translates into a good quality of life. However, there are many sleep disorders that can interfere with various aspects of our health, including vision.
Thursday, 23 June 2022
It is the inflammation of the optic nerve, which is in charge of sending light signals to the brain, thus allowing sight.
Monday, 20 June 2022
Many times, in consultation, bags under the eyes are a cause of concern and insecurity for patients. They appear over time and are due to the accumulation of fat in the lower eyelids.
Thursday, 09 June 2022
Each year, most schools ask parents of students for a pediatric ophthalmologic evaluation as part of the enrollment requirements, in order to detect any vision problems typical of childhood.
Thursday, 02 June 2022
Coloboma is an eye condition that occurs from birth, when there is an absence of normal eye tissue.
Friday, 27 May 2022
Learning disabilities are difficulties a child has with certain tasks, such as reading, writing, listening, speaking, paying attention, or doing math. These difficulties are not caused by eye problems. Children with learning disabilities are not more visually impaired than children who are not.
Friday, 27 May 2022
Dyschromatopsia is a disorder that prevents the correct perception of colors. Difficulty in recognizing the color chart may result in partial blindness to specific colors. In less common cases, no color may not be perceived at all.
Thursday, 12 May 2022
Humans are not born with a fully developed and mature visual system, despite having all ocular structures complete. Visual skills are acquired and perfected when the cerebral cortex receives adequate and more or less symmetrical stimulation of both eyes during the first years of life.
Thursday, 05 May 2022
Congenital cataract is the condition that occurs when a child is born with cataracts, which means they are born with an opaque lens, so their vision is compromised. Cataracts can affect vision if they are complete or central, and large enough to cover the pupillary area (the central area of the eye where light enters).
Thursday, 21 April 2022
Botulinum toxin is a substance produced by the bacterium Clostridium botulinum, which is used for medicinal purposes as a powerful blocker of the signals that the nerves send to the muscles. It is administered by subcutaneous injection and its application should only be advised and performed by a medical professional. It should be used in small doses to prevent a very delicate intoxication called botulism.
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