Can rgp control cone cornea development? It can. This question has been bothering me for a long time. I just met this case at work and talked to the patient, and when they were depressed to know their condition and treatment plan, the first thing they asked was can rgp control the development? Observe whether cone cornea development? 1, corneal topography, intuitive but unstable, because patients with cone tear film quality is relatively poor, need to blink immediately after the picture. 2, look at the matching base lone, this parameter is the most critical. At the same time to see the corrected visual acuity, but to exclude the cone itself accompanied by myopia deepening. 3, corneal thickness of the top, bottom, left, right and center of the five directions, but difficult to locate. 4, slit lamp observation of corneal signs, need to quantitatively record at the beginning, preferably with photographic evidence. 5.To really see if there is any development, need to stop wearing rgp for more than three months. Conical cornea occurs mostly in adolescents and has a lifelong impact on the patient’s quality of life and vision. Hard lens wear and corneal stromal ring implantation indirectly reduces corneal curvature and slows down the progression through changes in spatial structure. In the last 10 years, corneal collagen surgery combined with femtosecond laser or excimer laser can also effectively control its development by reinforcing the corneal stiffness, but these surgical methods are more suitable for suspicious and mild patients, and cannot be performed in severe cases. The following measures can be taken for early detection: 1. The establishment of refractive development egg files (visual acuity, refractive error, topography, eye axes) for adolescents at the high incidence of the disease is a basic task. 2, optometrists found suspicious shadow movement such as scissor shadow dark shadow, in the optometry results to be annotated, reminded to do topographic examination to rule out. 3, the high-risk group to pay attention to: vision loss and wear frame glasses can not be corrected to normal or heavy shadow (first exclude visual function abnormalities and other ocular diseases), short-term myopia increased too quickly, astigmatism is larger or increased too quickly, excimer surgery or angle shift after the vision loss. 4. Previously reported signs and symptoms associated with cone cornea should be alerted: frequent eye rubbing, respiratory sleep apnea syndrome, hereditary allergic patients, ocular pathology such as blue iris, small cornea, aniridia, and so on. If measures can be taken to detect and control its progression early, corneal transplantation may become a thing of the past for conical cornea patients in the near future.