A treatise on the diseases of the eye . EXTRACTION OF THE CATARACT. G43 the forefinger, and, keeping up the pressure, slowly complete the the knife advances, its broader portion enters the anterior chamber;thus the chance of protrusion is diminished by lessening the space in whichit can occur. When the section of the cornea is finished, it may not be large enoughto allow the easy escape of the lens. A common cause of failure is inbringing the point through the cornea, before it has reached the inner edge ;and this arises from the rolling of the globe inwards. We see cicatrices,in wh
A treatise on the diseases of the eye . EXTRACTION OF THE CATARACT. G43 the forefinger, and, keeping up the pressure, slowly complete the the knife advances, its broader portion enters the anterior chamber;thus the chance of protrusion is diminished by lessening the space in whichit can occur. When the section of the cornea is finished, it may not be large enoughto allow the easy escape of the lens. A common cause of failure is inbringing the point through the cornea, before it has reached the inner edge ;and this arises from the rolling of the globe inwards. We see cicatrices,in which we find that the knife has come out only a little beyond the cen-tre of the cornea. It is most desirable to make the opening of full size atfirst; that is, to divide one-half of the cornea close to its , however, this is not accomplished, what course should be taken toremedy the failure ? Scissors curved on the edge, and with one blade bluntat the end, have been employed, [figs. 109 and 110.] They are regularlyuse
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Keywords: ., boo, bookcentury1800, bookdecade1840, booksubjecteye, bookyear1847
