Glaucoma Diagnosis and Management Flashcards
7 cards from real ABO practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Glaucoma Diagnosis and Management flashcards as text
What did the LiGHT trial conclude about selective laser trabeculoplasty (SLT) as first-line therapy for open-angle glaucoma or ocular hypertension?
Answer: SLT gave comparable quality of life, and most patients were drop-free at 3 years
LiGHT showed that first-line SLT was cost-effective, with about 75% drop-free at 3 years and better IOP control.
Which trial found that cataract (clear lens) extraction was more effective than laser peripheral iridotomy for primary angle closure with IOP ≥30 mmHg or PACG?
Answer: EAGLE
EAGLE showed better IOP control, quality of life, and cost-effectiveness with clear lens extraction than with LPI.
What did the ZAP trial show about prophylactic laser iridotomy in Chinese primary angle closure suspects?
Answer: Benefit was modest and the overall risk of progression was low, so routine widespread LPI was not supported
ZAP found a low progression rate (about 1% per year in untreated eyes), so universal prophylactic LPI was not justified.
In the Tube Versus Trabeculectomy (TVT) study of eyes with prior surgery, what was found at 5 years?
Answer: The tube (Baerveldt 350) had a lower failure rate than trabeculectomy with MMC
At 5 years, cumulative failure was about 30% for tubes vs 47% for trabeculectomy, with similar IOP.
Which patient profile carries the highest risk of hypotony maculopathy after trabeculectomy with mitomycin C?
Answer: Young myopic man
Thin, compliant sclera in young myopic males lets the posterior wall fold at low IOP.
Which bleb feature most increases the long-term risk of blebitis and bleb-related endophthalmitis?
Answer: Thin, avascular bleb in an inferior location
Inferior and thin avascular (especially MMC) blebs, and bleb leaks, carry the highest infection risk.
During trabeculectomy, a patient with very high preoperative IOP suddenly has a shallow chamber, firm globe, loss of red reflex, and severe pain. What is the most likely complication?
Answer: Suprachoroidal hemorrhage
Acute pain, a firm eye, and a dark mass rising behind the iris point to suprachoroidal hemorrhage; close the wound immediately.