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Comparative study of ranibizumab and bevacizumab on corneal neovascularization in rabbits.
The aim was to compare the effect of subconjunctival injections of ranibizumab and bevacizumab on corneal neovascularization (NV) in rabbits. NV was induced by placing a suture at the corneal periphery of rabbits (n = 30 eyes). Immediately after suturing, the rabbits were divided into 3 groups and 7...
Corneal collagen fibril changes after ultraviolet a/riboflavin corneal crosslinking.
The aim was to investigate the changes in collagen type 1 and type 3 in rabbit corneas undergoing corneal crosslinking with ultraviolet A and riboflavin and to analyze the possible mechanisms of corneal haze formation. After removal of the central epithelium, the right corneas of 60 New Zealand rabb...
Presurgical corticosteroid treatment improves corneal transplant survival in mice.
We used 3 corneal transplantation models (NRPK, HRPK, and high-risk penetrating keratoplasty plus lensectomy). For each model, we tried to compare the effect of corticosteroid treatment according to different timetables as follows: The first trial began with a corticosteroid injection given 2 weeks...
Evaluation of microbial flora in eyes with a Boston type 1 keratoprosthesis.
To evaluate the microbial flora of eyes with a Boston Keratoprosthesis (K-Pro). A prospective study was performed for 17 eyes of 15 patients who underwent a K-Pro implantation between September 2005 and June 2011. Preoperative diagnoses included failed corneal grafts, limbal stem cell deficiency, ch...
Removal of lymphangiectasis using high-frequency radio wave electrosurgery.
To describe a novel technique using high-frequency radio wave electrosurgery (Ellman Surgitron Dual Frequency RF; Ellman International, Inc) for the management of lymphangiectasis. Ablations were performed at the lowest power setting of 1 (of 100) in the cutting mode, producing the least amount of l...
Correlation between signs and symptoms of ocular surface dysfunction and tear osmolarity with ambient levels of air pollution in a large met...
To evaluate the effect of high levels of environmental air pollution on tear osmolarity and its possible correlation with clinical signs and symptoms. This was a panel study involving 71 taxi drivers and traffic controllers from São Paulo, Brazil. Mean individual levels of 24-hour exposure to nitrog...
Associations between diurnal changes in Goldmann tonometry, corneal geometry, and ocular response analyzer parameters.
: To investigate the possible covariations between diurnal changes in Goldmann applanation tonometry (GAT) estimates of intraocular pressure (IOP), central corneal thickness (CCT), central corneal radius, and ocular response analyzer measures of corneal hysteresis and corneal resistance factor (CRF)....
Femtosecond-assisted keratopigmentation double tunnel technique in the management of a case of Urrets-Zavalia syndrome.
: In the immediate postoperative period, the patient reported a complete elimination of photophobia associated with the corrected distance visual acuity improvement. A very adequate cosmetic outcome was also achieved. Stability was observed during the 12-month follow-up. CONCLUSION:: A femtosecond-as...
Correlation of corneal elevation with severity of keratoconus by means of anterior and posterior topographic analysis.
To investigate the severity of keratoconus in terms of corneal elevation differences with 2 different reference surfaces using topographic analysis. Eighty-six eyes of 50 patients with keratoconus of various clinical stages (61 male and 25 female eyes) with mean age o...
Influence of modest changes in whole-body hydration on tear fluid osmolarity: important considerations for dry eye disease detection.