Comparison of Intraocular Pressures at Different Points in Human's Cornea before and after Laser in situ Keratomileusis with Tono-Pen Tonometer / 华中科技大学学报（医学）（英德文版）

In order to explore the difference of intraocular pressure (IOP) at different points of cornea before and after laser in situ keratomileusis (LASIK),IOP was measured by Tono-Pen Tonometer at central cornea,pericentral cornea and limbus respectively and analyzed statistically.After LASIK,IOP was dropped significantly at central cornea and pericentral cornea (P＜0.05),while no statistically significant change occurred at limbus (P＞0.05).There was no statistically significant difference in IOP at different points before LASIK (F=0.110,P=0.896),but statistically significant difference was found after LASIK (F=7.375,P=0.001).It was suggested that reliable IOP after LASIK could be obtained from the limbus by Tono-Pen tonometer.

Application of Tono-Pen tonometer during Perioperative Period / 医疗卫生装备

Objective To introduce the clinical application of Tono-Pen tonometer.Methods The intraocular pressure was detected with Tono-Pen XL tonometer at different time points for sixteen patients went through laparoscopic gynecologic operation,then the statistical analysis of the results was performed.Results In processes of artificial pneumoperitoneum and low position,the intraocular pressure escalated gradually,and after artificial pneumoperitoneum,the intraocular pressure descended rapidly.Conclusion Tono-Pen tonometer is the only tonometer can be used for the patient of general anesthesia until now.