Strabismus is a visual deficiency that causes the loss of alignment of both visual axes when focusing on a particular object. CAUSES Strabismus can appear at birth or in adulthood or even in children. Strabismus is caused by the involvement of the extraocular muscles due to: ⦁ The main cause in children is when there…
Lazy eye or amblyopia is the abnormal development of one eye during a child's primary school years causing low vision in that eye. Usually if it is treated at an early age (before the age of 7 or even up to the age of 12) there is a good chance to restore the amblyopic eye.…
Monofocal glasses are those that correct nearsightedness, farsightedness or astigmatism. The entire lens has the same graduation. In cases of people normally older than 40 years old, they need one prescription for distance and a completely different one for near because they start with eyestrain, in this case, they need a progressive lens that has…
Diplopia is an ocular defect where the person sees things in duplicate. This can be either permanently throughout the day or only at specific times of the same day or different days. It is quite a serious problem because when it occurs suddenly, it is necessary to have a medical evaluation and to know the…
Myopia is a visual defect that affects distance vision causing general blurred vision of objects that are far away or if there is a very high myopia even objects close to 50 cm are not seen well either. CAUSES People who suffer from myopia have a more elongated curvature of the eyeball or the corneal…
G laucoma is a disease that irreversibly damages the optic nerve. The optic nerve communicates the eye with the brain, so it is a fundamental part in order to transmit visual information through nerve fibers to the brain. The optic nerve is damaged when the intraocular pressure of the eye is unstable. It is believed…
Dry eye syndrome is a disease of the ocular system that affects the entire anterior layer of the eye causing dryness and irritation. It is an eye problem caused by poor tear production in the eye. The glands that are responsible for generating tears to moisturize the front of the eye do not function properly.…
Allergic conjunctivitis is a very common disease. In the eyeball, there is a thin and transparent membrane that covers the sclera (the white part of the eye) and the inner side of the eyelids called conjunctiva. Allergic conjunctivitis is the abnormal reaction of this layer that forms the eyeball called conjunctiva. During episodes of conjunctivitis,…
There are several types of contact lenses depending on the material: Soft contact lens
Rigid gas-permeable lens Soft contact lenses can be made of hydrogel or silicone hydrogel. They are the most commonly used and can correct myopia, hyperopia, astigmatism and eyestrain. WHAT DO CONTACT LENSES CORRECT?
Lenses MYOPIA LENSES myopia is a refractive defect…
From the age of 40, near vision fatigue begins. You begin to see slightly blurred the elements that are close to the nose at a distance of about 40 cm. This process is called presbyopia or eyestrain and can be corrected with glasses or contact lenses for Eyestrain. It is a completely natural phenomenon as…