Primary Research On The Tear Film Stability After Penetrating Keratoplasty

Objective To observe the tear film stability during the timefrom six months to twelve months after penetrating keratoplasty.Methods Twenty-two cases (22 eyes) , during the time fromsix months to twelve months after penetrating keratoplasty , wereexamined. We observed two eyes of each patient,including vision,Schirmer Testâ… with anaesthesia, tear film break-up time andcorneal fluorescein staining. We use statistics analysis to comparethe data we gained of the healthy eye with the data of the operativeeye of the same patient.Results When there is no corneal graft rejection, the data oftear film break-up time of the operative eye was still less than thehealthy eye(P<0.5), But the patients didn,t feel dull and dry;thedata of Schirmer Testâ… with anaesthesia of the operative eye wasequal to the healthy eye;and corneal fluorescein staining waspunctate with three patients. The data of tear film break-up time ofthe operative eye was 0 with corneal graft rejection;the data ofSchirmer Testâ… with anaesthesia of the operative eye was higherevidently than the healthy eye;and corneal fluorescein staining wasspread.Conclusion 1,During the time from six months to twelvemonths after penetrating keratoplasty, the tear film stability doesnot get resume,and declines with corneal graft rejection, yet.2 , After operated six months ,we can use manual teardepending on the state of the operative eye, and continuemedication with corneal nutrition and nerve nutrition.3,The implant nerve was cut off, and that patients do not feelthe obvious subjective symptoms may correlate with it. But theystill should examine eye regularity to detection the process early.4,Different suture mode does not effect the tear film stability.