Ophthalmology
Expert insights on ocular conditions, surgical techniques, retinal disease, and vision-related management.
Recent Discussions
In what cases do you consider mannitol for cataract surgery?
I have found IV mannitol VERY helpful for dehydrating vitreous for short axial length, especially around 20.5 or less. Otherwise, in short eyes, there is less working space and a greater tendency for the iris to want to prolapse out, even in the absence of typical IFIS-type medications. I’ve typical...
Who is your ideal candidate for a XEN over other filtering procedures such as trabs or tubes?
I typically reserve the Xen Gel Stent for elderly, Caucasian patients, especially women, with moderate open-angle glaucoma who need better pressure control but don’t require single-digit IOPs. These patients tend to have thinner, less fibrotic Tenon’s capsules and a lower risk of scarring, which all...
In primary angle closure suspects without cataracts, how do you approach the discussion about LPIs, given the relatively low risk of an acute angle closure attack?
In primary angle closure suspects without cataracts, I will have a discussion about aqueous humor dynamics and outflow mechanisms of the eye, and how that relates to risk stratification in the patient's case. We are fortunate in glaucoma to have a fair bit of evidence to guide us in our clinical dec...
Do you modify your cataract surgery (i.e., biometry, phaco parameters, post-operative regimen) in any way for patients with prior glaucoma surgeries and/or severe glaucoma?
I generally do not modify my cataract surgery settings or pre-op planning. For patients with filtering blebs, I review the risks that cataract surgery could cause increased IOP and in some cases, bleb failure. For patients with filtering blebs who might be on one or more drops, I might consider bleb...
Do you stop netarsudil or brimonidine for patients with very injected conjunctiva prior to trabeculectomy, and what do you feel is the benefit?
I find Rhopressa helpful in lowering IOP pre-op surgery, but it can cause inflamed conjunctiva, so I stop 1 week prior to surgery and prefer brimonidine 0.15% (Alphagan P), and it may have neuroprotective value as well.
What is your preferred surgical approach for revision of an over-filtering bleb?
Hypotony after trabeculectomy is not uncommon, and I generally inform my patients prior to surgery that the risk of hypotony is roughly 10-20%. But, as is well known, not all patients develop hypotony maculopathy or detrimental effects from low IOP, and some patients can do well with IOP in the hypo...
For patients with neovascular glaucoma and uncontrolled IOP, do you ever consider a glaucoma drainage device (GDD) combined with ECP as opposed to just a standalone GDD?
I've never performed those two surgeries together, and I don't know of any papers that looked at that. Many NVG patients who get tubes in my practice are phakic, which makes ECP a non-starter. For the pseudophakic ones, I usually do a tube alone, combined with anti-VEGF and PRP. I would consider ECP...
What has been your experience with the travoprost intracameral implant (iDose)?
My experience has been positive, but I consider patient selection prior to surgical planning to be crucial. At this time, I am mostly targeting mild to moderate POAG patients who are on 1-3 glaucoma medications (at least one being a PGA). I usually perform the iDose along with cataract surgery and a...
How do you decide the best way to treat glaucoma in patients with ICE syndrome given their higher risk of surgical failure and corneal complications?
In general, patients with ICE syndrome have unilateral refractory disease that often requires surgical management. MIGS procedures are not typically effective given the angle anatomy and progressive nature of the disease, and I usually perform tube shunt surgery in these cases. Placing the tube deep...
How do you approach tube shunt placement in very high myopes with thin sclera?
Due to decreased scleral rigidity in highly myopic eyes, there is a higher risk of hypotony and hypotony maculopathy with filtering surgeries, including tube shunts. In choosing the type of tube shunts, I would favor a valved tube shunt in high myopes. For surgical technique, I take great care when ...