1, Researchers estimate that keratoconus affects 1 in 2000 people. The disease affects men and women alike and there are no known differences between races.

2, Two types of keratoconus after PKP have remarkable divergence of post - operative corneal topography ( P 0.01 ).

3, There is also a relatively rare condition called keratoconus where the cornea becomes progressively thinner and cone shaped.

4, Conclusions:Iatrogenic keratoconus, high myopia and high astigmatism are the major cause of vision lowering after RK, PRK LASIK.

5, Keratoconus is a deterioration of the structure of the cornea with gradual bulging from the normal shape to a cone shape.

6, Keratoconus is a progressive eye disease, which causes a thinning of the cornea, the clear front surface of the eye.

7, As keratoconus progresses, the quality of one's vision deteriorates and contact lenses or glasses no longer become a satisfactory solution for most people.

8, ConclusionIncreasing EGF accelerates DNA synthesis of epithelial cells and stromal cells in keratoconus to cause tissue healing.

9, Objective To investigate the clinical value of deeper lamellar keratoplasty treating keratoconus.

10, On this basis, they conducted a comparative study to evaluate the difference between C3-R with and without de-epithelialization, on patients affected by keratoconus .

11, Drilling with light blue see more clearly, the emergence of this Central keratoconus rate of 50%.

12, Objective To observe the expression of collagen type I and II in normal cornea and keratoconus,[http:///keratoconus.html] and discuss the effects on the keratoconus.

13, The study suggested that the procedure were safety, simply, effective adn reversable Epikeratophakia can be used on aphakia, keratoconus and high myopia.

14, Methods Deeper lamellar keratoplasty was performed on 25 eyes of 22 cases with keratoconus.

15, All cases those underlying Descemet's rupture had no significant turbidity. Conclusions Deep lamellar keratoplasty for treatment of acute keratoconus can obtain better clinical effects.

16, ObjectiveTo observe the changes of visual acuity, keratometry values and corneal endothelial cells after deep lamellar keratoplasty or penetrating keratoplasty in keratoconus.

17, Have a disease or abnormality of the cornea, such as keratoconus or corneal edema.

18, Objective To observe the effect of fitting rigid gas permeable lenses ( RGP ) correcting ametropia of keratoconus.

19, The area under ROC of posterior maximum refractive power and the AUR of posterior maximum elevation were greater than that of other indices in the diagnosis of early keratoconus.

20, Conclusion RGP can get a better correcting vision to keratoconus than spherical-cylindrical lens, and is the good non-operative treatment to correct ametropia of keratoconus .

21, Objective Appraise the important effect of the corneal topographic analysis in the early keratoconus diagnosis.