LEP patients had greater visual acuity improvement after cataract surgery (change 0.366 vs 0.254)

Description #

Despite (and consistent with) their worse baseline acuity, LEP patient eyes showed greater improvement in CDVA after cataract surgery than EP eyes (change in logMAR 0.366 [SD = 0.54] vs 0.254 [SD = 0.41], P < .0001; median change 0.222 vs 0.176) (Table 3). A larger positive change denotes greater visual gain.

"showed greater improvement after surgery (logMAR 0.366 [SD = 0.54] vs 0.254 [SD = 0.41], P < .0001)." (Zafar, 2023, p. 595)

"Change in VA ... Mean (SD) 0.366 (0.54) 0.254 (0.41) ... Median 0.222 0.176 <.0001" (Zafar, 2023, p. 598, Table 3)

Methods Context #

What? #ⓘ

The observable: change in visual acuity (preoperative minus postoperative CDVA), in logMAR.

"Surgical characteristics and outcomes collected included cataract maturity, complexity of surgery, intraoperative and postoperative complications, whether a resident or attending physician was the primary surgeon, surgical time, postoperative CDVA, change in visual acuity, refractive surprise, cumulative dissipated energy (CDE), usage of steroid eyedrops at 4 weeks postoperatively, and whether the patient received subsequent Nd:YAG laser capsulotomy." (Zafar, 2023, p. 596)

How? #ⓘ

Retrospective analysis of a cataract-surgery outcomes database; change in CDVA compared by LEP status as a continuous variable.

"We performed a retrospective analysis using the Cataract Surgery Outcomes Database developed by the Department of Ophthalmology at the University of Colorado School of Medicine." (Zafar, 2023, p. 596)

Who? #ⓘ

Change in VA was available for 785 LEP eyes and 10,267 EP eyes of the 13,590-eye cohort at a single academic eye center (2014–2020).

"A total of 13 590 eyes were included in the analytic database. Of these, 868 (6.4%) were identified from LEP patients." (Zafar, 2023, p. 596)