Uday Devgan MD posted: " 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 rhe"
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.
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