Cornea - a front part of an external fibrous envelope of an eyeball; nonvascular, high-sensitivity, transparent, an optically homogeneous envelope with smooth, a smooth surface. Except for protective and basic function the cornea is the main refracting surface of optical system of an eye.
Diseases of a cornea makes about 25 % of the general number of diseases of eyes, and quite often are the reasons of blindness and lowering of vision.
Diseases of a cornea are rather various. Most often there are inflammatory diseases of a cornea (keratitis), differing greater variety of forms and being one of principal causes of decrease in sight and blindness, and also keratikonus. The Most frequent reasons of keratitis and keratoconjunctivitis are virus and bacterial infections.
Keratikonus - a condition of an eye at which the normal spherical form of a cornea is broken, the cornea is bent. On a surface of an eye the camber similar to a cone that leads to strong easing of sight develops.
Dystrophies and degenerations of a cornea happen primary and secondary. In a basis primary local and general infringements of a metabolism with adjournment in a cornea of products of a pathological exchange lay. Secondary dystrophies develop after transferred keratitis, traumas, burns of eyes.
For the prevention of heavy complications of diseases of a cornea are required: proper diagnostics, duly and active treatment. Various medicinal substances are applied to local treatment in the form of drops, injections. Methods of electrophoresis, phonophoresis, treatment by laser radiation are used also.
For carrying out of purposeful treatment bacterial keratitis definition of sensitivity of microflora to antibiotics by crop of defeat separated from the center is necessary.
Instruction to the patient after change of a cornea
To you the microsurgery of change of a cornea is lead. The thin seam keeping a donor fabric, can long-standing time (about one year) to remain in a cornea. It allows you to start to work with the moderate physical activity earlier. At the same time, it is necessary to remember the periodic medical control over a condition of a seam.
Durable healing of a wound after change of a cornea comes only in 6-10 months after operation. Therefore after an extract from a hospital it is necessary for you to continue the recommended treatment in house conditions. Instilling drops or loading ointments can be made the purest hands before a mirror or in a prone position, as well as by means of relatives, using those receptions with which you have got acquainted in a hospital.
During the first month to sleep it is necessary on a back or on the party opposite to the operated eye. The food can be usual, it is necessary to exclude alcoholic drinks. Surplus of sweets is not desirable. Easy gymnastic exercises without jumps, run and inclinations are useful. During rest and walks during the first year after operation it is necessary to avoid stay on the bright sun. It is impossible to sunbathe. It is possible to use the blacked out glasses. The replaced cornea during several months, and sometimes several years, has the lowered sensitivity. Therefore it is impossible to rub sharply an eye a scarf or a hand, it is necessary to be cautious at washing, to cover the operated eye during a strong wind and to avoid walks in frosty days even on the second or the next years after operation. It will help to save a cornea from damages and freezing injury.
You can watch TV, go to museums, cinema and theatre if it is not connected with difficult and close moving to transport. It is possible to start the usual or limited work in 2-4 months depending on a condition of the operated eye and working conditions. Expansion of the general mode should be carried out one step at a time, however during the first year work with a slope of a head downwards, outdoor games, run, heavy physical work is absolutely counter-indicative. After an output for work do not forget to show to the oculist each 2-3 months within the first year after operation, especially if it is not removed an encircling stitch.
In case of occurrence of reddening and an ache in an eye, and blear-eyedness to you it is necessary for photophobia to see a doctor promptly. Only early the begun treatment can prevent deterioration of vision.
Diseases of a cornea makes about 25 % of the general number of diseases of eyes, and quite often are the reasons of blindness and lowering of vision.
Diseases of a cornea are rather various. Most often there are inflammatory diseases of a cornea (keratitis), differing greater variety of forms and being one of principal causes of decrease in sight and blindness, and also keratikonus. The Most frequent reasons of keratitis and keratoconjunctivitis are virus and bacterial infections.
Keratikonus - a condition of an eye at which the normal spherical form of a cornea is broken, the cornea is bent. On a surface of an eye the camber similar to a cone that leads to strong easing of sight develops.
Dystrophies and degenerations of a cornea happen primary and secondary. In a basis primary local and general infringements of a metabolism with adjournment in a cornea of products of a pathological exchange lay. Secondary dystrophies develop after transferred keratitis, traumas, burns of eyes.
For the prevention of heavy complications of diseases of a cornea are required: proper diagnostics, duly and active treatment. Various medicinal substances are applied to local treatment in the form of drops, injections. Methods of electrophoresis, phonophoresis, treatment by laser radiation are used also.
For carrying out of purposeful treatment bacterial keratitis definition of sensitivity of microflora to antibiotics by crop of defeat separated from the center is necessary.
Instruction to the patient after change of a cornea
To you the microsurgery of change of a cornea is lead. The thin seam keeping a donor fabric, can long-standing time (about one year) to remain in a cornea. It allows you to start to work with the moderate physical activity earlier. At the same time, it is necessary to remember the periodic medical control over a condition of a seam.
Durable healing of a wound after change of a cornea comes only in 6-10 months after operation. Therefore after an extract from a hospital it is necessary for you to continue the recommended treatment in house conditions. Instilling drops or loading ointments can be made the purest hands before a mirror or in a prone position, as well as by means of relatives, using those receptions with which you have got acquainted in a hospital.
During the first month to sleep it is necessary on a back or on the party opposite to the operated eye. The food can be usual, it is necessary to exclude alcoholic drinks. Surplus of sweets is not desirable. Easy gymnastic exercises without jumps, run and inclinations are useful. During rest and walks during the first year after operation it is necessary to avoid stay on the bright sun. It is impossible to sunbathe. It is possible to use the blacked out glasses. The replaced cornea during several months, and sometimes several years, has the lowered sensitivity. Therefore it is impossible to rub sharply an eye a scarf or a hand, it is necessary to be cautious at washing, to cover the operated eye during a strong wind and to avoid walks in frosty days even on the second or the next years after operation. It will help to save a cornea from damages and freezing injury.
You can watch TV, go to museums, cinema and theatre if it is not connected with difficult and close moving to transport. It is possible to start the usual or limited work in 2-4 months depending on a condition of the operated eye and working conditions. Expansion of the general mode should be carried out one step at a time, however during the first year work with a slope of a head downwards, outdoor games, run, heavy physical work is absolutely counter-indicative. After an output for work do not forget to show to the oculist each 2-3 months within the first year after operation, especially if it is not removed an encircling stitch.
In case of occurrence of reddening and an ache in an eye, and blear-eyedness to you it is necessary for photophobia to see a doctor promptly. Only early the begun treatment can prevent deterioration of vision.
