Ophthalmology
Expert insights on ocular conditions, surgical techniques, retinal disease, and vision-related management.
Recent Discussions
In patients with end-stage glaucoma requiring surgery (cataract or incisional glaucoma surgery), how do you approach discussion of possible "snuff" and how does this factor in your decision to proceed with surgery?
I have operated on hundreds, if not thousands, of patients with end-stage glaucoma over my career. Many CAT IOL + bleb surgery or Cat IOL alone. I cannot remember a snuff directly related to surgery. Judicious use of ER acetazolamide immediately postoperatively goes a long way. If cat IOL alone and ...
What is your approach to intralesional steroid injection for chalazia (in terms of dosage, approach, timing)?
I offer the option of intralesional steroid to all patients with chalazia, particularly if there is significant inflammation present. I give up to 1 cc of a 10 mg/mL solution of dexamethasone. I have approached this by both transconjunctival as well as transcutaneous. I think transconjunctival hurts...
What is an effective technique for obtaining tissue for pathological analysis from a broad-based luminal punctal/canalicular mass?
If there is enough representative tissue outside of the punctum/canaliculus proper, then it can be incised sharply like any other marginal lesion (I prefer a 15-blade and Westcott scissors). If the pathology is limited to the lumen, then a modified punctoplasty could be considered. Dilate the punctu...
What are some methods to deal with IOP elevations with intravitreal injections in a patient without glaucomatous damage that does not want to have AC taps with each injection?
In this situation, depending on the elevated IOP, use the standard medical approach: Iopidine1%, Cosopt, Alphagan 0.2%, and in some cases, Diamox 250 mg. Wait for half an hour and repeat if necessary, or send the patient home with one or more drugs. Of course, make sure of drug selective contraindic...
What treatment strategies do you use to reduce the risk of post-herpetic neuralgia after herpes zoster ophthalmicus?
For prevention, our best tool is the VZV vaccine (Shingrix). I recommend that all patients over age 50 consider receiving it. However, if an individual develops VZO and has persistent pain, I begin with antiviral therapy to assess whether subclinical viral activation is contributing to the pain (dur...
What is your perspective on using AI with OCTA to assess optic nerve blood flow in glaucoma management?
OCTA provides quick, reliable 3D scans that reveal both structural (NFLA, ON rim, cupping, GCC thickness, FAZ) and vascular (VD retina and ONH) information. Thus, it fulfills the requirements of both the mechanical and vascular theories. However, the busy ophthalmologist must scan through over 30 va...
How do you determine the appropriate toric IOL when there is a discrepancy in axis or cylinder power between optical biometry and corneal tomography during preoperative evaluation?
Always difficult. Always re-measure when discrepancies occur. For axis discrepancies, Auto Ks, topography, biometry, and past refraction. Past refraction is where the patient lived their entire life before their cataract surgery. Which of these tests aligns the most? Past refraction, especially pre-...
How soon do you consider repeating external diode (CPC) for a patient who's IOP remains relatively unchanged and uncontrolled post-op after initial CPC?
My experience is that a reduction is usually apparent by 6-8 weeks. If not at target level IOP, repeat the procedure and adjust parameters of treatment accordingly (duration on, cycle frequencies/duty cycle).
In what cases do you consider mannitol for cataract surgery?
I consider mannitol in eyes with short axial length <22 mm or shallow anterior chambers (<2.5 mm). I do avoid if any renal disease or congestive heart failure. I start with 12.5 grams and give up to 25 if need be.
What is your algorithm for transitioning a patient with chronic noninfectious posterior uveitis from corticosteroids to immunosuppressive therapy?
There are some forms of noninfectious posterior/panuveitis where it is known from the time of uveitis diagnosis that steroid-sparing immunosuppression (IMT) will be needed. For example, in birdshot retinochoroiditis or serpiginous choroidopathy, IMT is often initiated in concert with oral corticoste...