Diamond burr debridement vs. grid keratotomy in canine SCCED with scanning electron microscopy diamond burr tip analysis.

摘要: Objectives (i) Compare the outcome of canine SCCED treated with grid keratotomy (GK) or diamond burr debridement (DBD); (ii) Serially evaluate morphologic and elemental composition changes to tips. Animals studied A total 91 eyes 88 patients at University Missouri (2005–2015); 75 fresh cadaver porcine globes. Procedures (i) Medical records were reviewed retrospectively. Data analyzed for age, sex, breed, procedure performed, eye(s) on which was time healing after a single surgical procedure, performance second contact lens placement, postprocedural complications. Three naive 3.5-mm medium grit tips using scanning electron microscopy (SEM) energy-dispersive X-ray spectroscopy (EDS). DBD performed 120 s 8-mm corneal stroma Algerbrush®. Manufacturer-recommended cleaning protocols followed. SEM EDS analyses in triplicate 10, 25, 50 DBD, cleaning, sterilization cycles. Results There no statistically significant difference between GK groups (P = 0.50). No particle damage DBDs detected. secondary imaging backscatter repeated uses demonstrated build-up contamination composed carbon, sulfur, calcium tips. Conclusions Both are effective treatment options SCCED. Although complications rare contaminants may be contributing factor. Additional being investigated.