The commoner diseases of the eye : how to detect and how to treat them . pupil having been previously dilated withweak atropin solution, cocain is instilled (or,in the case of quite young children, chloroformgiven) and a cataract needle passed through thecornea 2 mm. from the outer scleral point is now directed forwards to the cen-ter of the lens and a single vertical cut madein the capsule. The needle is at once withdrawn;little or no aqueous escapes and there is verylittle inflammatorv reaction. 314 HISKASKS OF THE EYE In a day or two a portion of the lens projectsthro
The commoner diseases of the eye : how to detect and how to treat them . pupil having been previously dilated withweak atropin solution, cocain is instilled (or,in the case of quite young children, chloroformgiven) and a cataract needle passed through thecornea 2 mm. from the outer scleral point is now directed forwards to the cen-ter of the lens and a single vertical cut madein the capsule. The needle is at once withdrawn;little or no aqueous escapes and there is verylittle inflammatorv reaction. 314 HISKASKS OF THE EYE In a day or two a portion of the lens projectsthrough the opening thus made This, throughthe solvent action of the aqueous, is another piece protrudes, goes through thesame process, and so on, until in from threeweeks to three months the whole lens has dis-appeared by absorption. Weak atropin dropsshould be used throughout and a bandage is gen-erally advisable. Some surgeons prefer, as soon as the lens massconies forward into the anterior chamber, to re-move it bv the usual corneal section or by means. Syringe for Removing Soft Cataract by Suction. of a specially constructed suction syringe, butthe discission operation alone is generally safestand is usually all that is required, although itmay have to be repeated. Secondary Cataract; Capsular Cataract.—The posterior capsule is, of course, not removedin either of the cataract operations just often happens that some (^\ the lens substance CATARACT AND OTHER AFFECTIONS 315 remains after extraction of the cataract; ab-sorption of this takes place and vision graduallyimproves. In a certain percentage of cases, how-ever, the posterior capsule becomes thickened and
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