Can you please discuss what is done to insure that secondary glaucoma
won't be a result of cataract surgery since, as I understand it, the aqueous and
eye pressure are interrupted as a result of the surgical procedure; therefore, how
is the pressure restored to normal and does it stay normalized or can either the IOL
or something else cause complications with eye pressure.
This is a difficult question to answer without more specifics. Cataract surgery usually lowers eye pressure a little bit long term and not elevate it unless there are problems from the lens that occasionally lead to a secondary pigment dispersion glaucoma or what is called UGH syndrome (uveitis, glaucoma, hyphema). I'm assuming you are asking about the immediate post-operative period. Occasionally, eye pressure shoots up within the first 72 hours after cataract surgery for one of multiple reasons. This is more likely to happen in people who have underlying glaucoma to begin with. In those with severe visual field deficits already and damaged optic nerves, eye pressure should either be checked in the afternoon of the same day as the cataract surgery or pills could be given to decrease the chance of a pressure spike. This all needs to be discussed with your surgeon. The first possibility should not occur if the surgeon is experienced and places the lens in the correct location.
Thank you Dr. Vosoghi for your response to my concerns about secondary glaucoma post op cataract surgery. The information you gave was extremely helpful and much appreciated.
I had one follow up question for you - can you briefly describe what's happening in the eye relative to the flow of aqueous at the point when the corneal incision is made, then during the phaco phase of the procedure, and onto the implanting of the IOL?
Does the aqueous 'turn off' and if so, how do you re-establish it so that the fluid flow/pressure become normalized.
Once the eye is open and throughout the procedure the surgeon controls the pressure in the eye with the inflow of fluid through the instruments (phaco tip) and outflow around the instruments and through the suction associated with the phaco. This leads to some fluctuations up and down but should be consistantly below a maximum threshold that the surgeon sets using a bottle height. Compared to this artificial inflow-outflow system, the normal production of aqueous and outflow through the natural drain of the eye (trabecular meshwork) is inconsequential (the eye continues to make fluid and drain it at a much slower rate of a coupld of microliters per minute).
Copyright 1994-2016MedHelp International.All rights reserved. MedHelp is a division of Aptus Health.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.