Aim: To study the efficacy of collagen crosslinking on pseudophakic bullous keratopathy.
Methods: Fifteen patients with pseudophakic bullous keratopathy participated in the study.
Corrected visual acuity measurement, slit lamp examination, corneal
clarity grading, ocular
pain intensity scale and corneal thickness measurement were performed before corneal
crosslinking and 1, 3 and 6month postcrosslinking. Corneal collagen crosslinking was
performed after the removal of the epithelium and the application of riboflavin every 3
minutes for 30 minutes then the ultraviolet irradiation applied for 30 minutes with the
application of riboflavin every 5 minutes.
Results: The mean age was 65.5 year (9 females and 6 males). Corneal thickness
decreased significantly after crosslinking but the visual acuity did not change significantly
after crosslinking. Corneal transparency improved in the first month. Ocular pain
decreased significantly in the first and third month.
Conclusion: Corneal collagen cross linking is an effective and temporal procedure to
decrease ocular pain for bullous keratopathy patients
The aim of this research is the determination of the appropriate conditions
for extracting collagen by acidic method from remnants of skins of sheep, cows,
and chickens. The results showed that acetic acid is the best among the various
organic acids, for extracting collagen of these skins during 48 hours, at
concentration of 0.5 M and the ratio, acidic: skin (6:1).
Varicose veins affects about 10-59% of the population. Varicose is a clinical reflection of the progressive failure in the veins of the lower limbs. Venous insufficiency is caused by structural imbalances in all layers of the wall of the vein, hence,
the importance of morphologic and statistical studies of the varicose veins of the lower limbs and comparison with normal veins. We had surgery for varicose 43 patients. We examined all samples of varicose veins and normal veins of three patients with pathological studies. Average age was 40.58 years. The study was done macroscopically and microscopically, taking different histological sections of varicose and normal veins. Routine and special Dyes were used, in order to detect changes in the compositional elements of the vein wall. We reached the following conclusions and recommendations: the presence of certain changes in the quality and quantity in all pathologic samples along connective tissue elements and smooth muscle fibers, distributed in all layers of the wall of the vein definitively; the need to start treating varicose veins early as possible in order to avoid its development and access to complications; it is useful to attempt to study the relationship between the appearance of varicose veins and blood group of the patient.
Elastin and collagen loss from the dermal layer is essential cause for wrinkles in
the face. Dermal fillers is the solution for this problem and this study compared clinical improvement
degree and the duration of correction between hyaluronic acid (Matrigel) versus bovine collagen (Zyplast)
for the correction of nasolabial fold.
