The student's guide to diseases of the eye . off during the daytime atthe end of a week or ten days, a shade being worn ;but it should be re-applied at night for the first two * Old people occasionally get delirious during the confine-ment in bed after iridectomy or extraction of cataract, and forsuch patients the rules as to bandaging and darkness should berelaxed. Some operators of large experience have abandoneddark rooms for all cataract cases; and a few bandage only theoperated eye, leaving the other open. 356 OPERATIONS or three weeks to prevent accidents from movementsduring sleep. At t
The student's guide to diseases of the eye . off during the daytime atthe end of a week or ten days, a shade being worn ;but it should be re-applied at night for the first two * Old people occasionally get delirious during the confine-ment in bed after iridectomy or extraction of cataract, and forsuch patients the rules as to bandaging and darkness should berelaxed. Some operators of large experience have abandoneddark rooms for all cataract cases; and a few bandage only theoperated eye, leaving the other open. 356 OPERATIONS or three weeks to prevent accidents from movementsduring sleep. At the end of a fortnight, if theweather be fine, the patient may begin to go out, theeyes being carefully protected from light and windby dark goggles, and he may be out of the surgeonshands in from three to four weeks. After-operations.—When iritis occurs (p. 162) thepupil becomes more or less occluded by false mem-brane, and the subsequentcontraction of this mem-brane, may draw the iristowards the scar, so thatthe pupil is at once blocked. wmm and displaced (Fig. 148). Li slight cases sight isPig. 148.—Diagram of oc- ™eatly improved by sim- upward extraction of ca- orane and capsule with ataract. fine needle, and treating the case as after discission ofsoft cataract. But in severer cases an artificial pupilmust be made, either by iridectomy or iridotomy(p. 342). 2. Solution (Discission) operations.—In these thelens is gradually absorbed by the action of the aqueoushumour admitted through a wound in the capsule(pp. 157 and 159).—(1) The pupil is fully dilated byatropine; (2) an ansesthethic is given unless the patientis old enough to control himself well, for the slightestmovement is attended by risk; (3) the lids are heldopen by the fingers, or a stop speculum and fixationforceps used; (4) a fine cataract needle (Fig. 149) h IG. 149.—Cataract needle. is directed to a point a little within the border of thecornea (usually the outer border), and when close toits surfac
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Keywords: ., bookcentury1800, booksu, booksubjecteye, booksubjectophthalmology
