Showing papers on "Cataract surgery published in 1968"

Carbachol in cataract surgery.

Abstract: Carbachol in a weak dilution (0.01%) is effective and relatively nonirritating when used as a miotic after the lens is removed in round pupil cataract extraction.

Cyclonamine in cataract surgery. A clinical trial.

Abstract: CYCLONAMINE (diethylammonium 1,4-dihydroxy-3-benzenesulphonate; Dicynone)4 is a synthetic haemostatic the action of which results from an increase in vascular resistance associated with reduced bleeding time. Raby and Coupier (1965), in a series of cases with increased capillary fragility, showed a favourable increase in vascular resistance after the intravenous 1inJection of 250 mg. cyclonamine. Canal (1964), in a double-blind trial, 'demonstrated it mean reductiodn in bleeding time of 33 8 per cent. (placebo 8-1 per cent.) with oral cyclonamine, and in a second group of patients a mean reduction of 32-9 per cent. (placebo 4-5 per cent.) one hour after the intramuscular injection of 500 mg. cyclonamine. Borel (1962) was impressed with the drug in general\" surgical use, and Volet, Bonhote, Skouvaklis, and Locher (1963) demonstrated a reduction in blood loss in gynaecological surgery. In the field of ophthalmology Stucchi and Nouri (1962) treated a controlled series of twenty patients undergoing a variety of operations with intramuscular cyclonamine 500 mg. on the pre-operative day, and 500 mg. 2 hours before operation. They reported a marked reduction of bleeding in 65 per cent. of cases. Vicari (1963) reported a low haemorrhage rate of 6-73 per cent. in 104 cases of cataract, drainage, and sclerectomy (retinal detachment) procedures. These patients received 500 mg. cyclonamine intramuscularly 1 hour preoperatively, and 250 mg. daily by the same route for two post-operative days. A year later Vicari (1964) published a further series, this time using oral cyclonamine, and was again favourably impressed. The present trial was carried out to estimate the efficacy of cyclonamine from the practical standpoint of observable reduction in haemorrhage at operation, in comparison with a control group.

Distressing wound complications from contact lenses for aphakia.

Abstract: To the Editor. —Five years ago a panel of 16 ophthalmologists at the Biennial Contact Lens Congress, Miami Beach, Fla, voted that contact lenses should not be used until three and sometimes four months after cataract surgery. Three years ago almost all of a panel of 24 ophthalmologists voted that contact lenses should not be used until two months after cataract surgery. Very few complications were presented by the panel or by the audience from too early usage of contact lenses following cataract surgery. I have now seen four cases of iris-wound adhesions of several hours of the clock or more caused by excessively vigorous eyeball mashing during self-removal of contact lenses nine to eleven weeks postoperatively. These cases had normal looking wounds and no iris-wound adhesions until the contact lenses were prescribed eight weeks postoperatively in three cases and 11 weeks in my most recent case. Two of the

Diamond knife in cataract surgery.

Abstract: SURGEONS have always searched for sharper cutting instruments whether it be needles, scissors, or knives. The stainless steel blade has until recently been the sharpest knifeedge, but diamond knives$ are much sharper. The diamonds are of gem quality and the blades were developed originally for sectioning biological materials especially for electron microscopy. This paper presents their use in making the cataract incision, their first known use in human surgery. The cutting edge of a stainless steel knife blade magnified 1000 x is shown at the left of Fig. 1, while the perfect diamond knife-edge at the same magnification is on the right.