Keratoconus
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When cornea gets thinner and become pointed it is called Keratokonus. Cornea has curvy shape and this is bolded by birth and it increase so cornea hangs down. Increasing causes astigmatism. There are four types of level. First level is light, second level is mild, third level is heavy and forth is advance level of keratoconus. First symptom of keratoconus is flu vision. Sensitivity for light, glare, reduce night vision, headache, difficulty of reading, double vision, burn and feeling sting are other symptoms of kerotoconus. It is effect patient’s life quality. Vision could be affected very badly. Keratoconus usually happens both eye but sometimes one of them could be heavier. Rate is almost same for genders. It is usually notice on teen ages.
Doctors can be suspicious about patients who have astigmatism that increase every examination. If patients do not pay attention on that cornea could be dangerously thin.
Contact lens, corneal cross-linking, internal corneal rings, and cornea transportation are the treatment for Keratoconus.
Permeable hard lenses uses on keratoconus because soft lens do not fix shape of cornea. Patients and doctors should be careful and patient for who are using permeable hard lens because usually patients who use this lens do not feel comfortable.
Corneas inside connection can be stronger with ultraviolet A and eye drop form riboflavin. This treatment is using to stop cornea to hang down.
Internal corneal rings developed for patients who have keratoconus. Two half circle transparent rings placed inside of the cornea. They do not stop cornea to hang down but they fixed problem with vision temporarily.
Twenty percent of the keratoconus patients go to have corneal transportation operation. Corneal transportation is changing center to 7-9 mm of the cornea with new one. Usually patients go to have corneal transportation when they have late diagnosis for keratoconus. Success of this operation is ninety-five percent but sometimes it may cause serious complication.
