No abstract available.
Silicones*

No Abstract Available.
Silicones*

No abstract available.
Paraffin* ; Silicones*

PURPOSE: To investigate whether there was any difference in anterior capsular opening area between the use of silicone intraocular lens(IOL) and acrylic IOL after continuous curvilinear capsulorhexis(CCC). METHODS: In 42 eyes, acrylic IOL(Acrysof(R), Alcon, U.S.A.) were inserted into the capsular bag during phacoemulsification, and in 36 eyes silicone IOL(Chiroflex II(R) , Chiron, U.S.A.) were inserted. The reduction rate of anterior capsular opening area at first, second, third and sixth postoperative month were compared between the two groups. RESULTS: On the whole, the reduction in anterior capsular opening area was larger by 0.574 mm 2 when silicone IOL was used, but the different was not statistically significant(P= .061). The result was the same at 1 month(P= .149), 2 months(P= .144), 3 months(P= .223), 6 months(P= .163) after surgery. CONCLUSIONS: We concluded that there was little difference in the changes of anterior capsular opening area after CCC between the use of silicone IOL and acylic IOL, and other factors should be considered.
Phacoemulsification ; Silicones

No abstract available.
Contracture* ; Silicones*

No abstract available.
Silicones* ; Transplants*

As the inaccuracy which was made in implant impression prevented passive fit,it needed to solder the sectioned framework at several locations to correct the inaccuracy. Many clinicians have suggested impression techniques which could make passive fit between implant and superstructure. The purpose of this research was to measure and compare the accuracy of three methods of taking impression with the strain amplifier. The experimental groups were classified as follows : Group I; splinted the two parts with Futar D Occlusion. Group II; splinted the two parts with DuraLay. Group III; didn't splint the two parts. The results were as follows ; 1.The values of strain in the vertical and horizontal surfaces were increased in the order of groupI,group II and group III. 2.Group I showed higher accuracy of the duplicated casts in the vertical and horizontal surfaces than group IIand group III(p<0.05). 3.There were no significant differences in the accuracy of the duplicated casts between group IIand groupIII. From the above results,it is considered that the splinting method of impression copings could make an influence on the accuracy of the master casts.To improve the accuracy of the master casts, splinting the squared impression copings with the additional silicone occlusion materials is recommendable.
Silicones ; Splints

No Abstract Available.
Blepharoptosis* ; Silicones*

We reviewed the complications associated with silicone tube intubation in the treatment of disorders of the lacrimal system in 68 cases from January 995 to December 1997. Complications included conjuctival and corneal irritation 7 cases, punctal erosion 6 cases, tube prolapse 5 cases, tube extrusion or breakage 4 cases, and intranasal irritation 3 cases. After silicone intubation complications occurred in 7 cases in the 1st month, 8 cases between 1 and 3 months. Among them each 3 cases had their tubes removed. Complications occurred in 4 cases between 3 and 6 months, 6 cases longer than 6 months. After 3 months, all patients with complications had their tubes removed. Operation result of patients with tube removed was good.
Humans ; Intubation* ; Prolapse ; Silicones*

No Abstract available.
Constriction, Pathologic* ; Silicones* ; Stents*