1456: operating through a small rhexis

Keep in mind the dimensions of the typical cataractous lens: about 9-10 mm in diameter and then about 4-5 mm in anterior-posterior thickness centrally. This lens material needs to come out of the eye through our capsulorhexis, so when we make the rhexis small, the challenges are greater. This case has a 4 mm diameter capsulorhexis and the surgeon must carefully break up the cataract within the capsular bag in order to extract the pieces. This is significantly more challenging than with the typical 5 mm capsulorhexis. Also note that nuclear density plays a role here: it is easier to remove a soft posterior subscapsular cataract through the small rhexis than a dense brunescent cataract.

link here

Leave a Reply