RETINA

ACCURACY OF NEW INTRAOCULAR LENS CALCULATION FORMULAE IN EYES UNDERGOING SILICONE OIL REMOVAL/PARS PLANA VITRECTOMY-CATARACT SURGERY

imagePurpose:

To investigate the performance of novel intraocular lens calculation formulae (Barrett Universal II, Emmetropia Verifying Optical, and Kane) and conventional formulae (Haigis, Hoffer Q, Holladay 1, and Sanders‐Retzlaff‐Kraff/T [SRK/T]) in patients who underwent pars plana vitrectomy or silicone oil removal combined with cataract surgery.

Methods:

In total, 301 eyes from 301 patients who underwent pars plana vitrectomy/silicone oil removal with concomitant cataract surgery were enrolled and divided into the following four groups according to preoperative diagnosis: silicone oil–filled eyes after pars plana vitrectomy, epiretinal membrane, primary retinal detachment, and macular hole.

Results:

Barrett Universal II exhibited the smallest mean absolute error (0.65 diopters [D]) and median absolute error (0.39 D) in total. In patients with primary retinal detachment, each formula exhibited the worst refractive outcomes in diverse vitreoretinal pathologies (P

By , ago

Role of Small-Gauge Proportionate Reflux-Assisted Hydrodissection In Elevated Symptomatic Vitreofoveal Traction

imageBackground/Purpose:

To describe a new technique to release the elevated symptomatic vitreofoveal traction.

Methods:

This was a retrospective, interventional case series where a new technique of hydrodissection by proportionate reflux property of small-gauge vitrectomy cutter was used in cases of elevated symptomatic vitreofoveal traction as evident on optical coherence tomography. After vitrectomy, an opening was made in the taut posterior hyaloid face around the foveal elevation. Then, the cutter tip was insinuated inside the hyaloid opening, and the port opening was directed toward the tip of the fovea at its hyaloid attachment. The proportionate reflux property of the cutter was then used to cause reflux of cassette fluid. The hydrostatic force thus generated separates the vitreofoveal attachment. End point was separation of vitreofoveal traction.

Results:

Seven eyes of seven patients were operated by 27-gauge (n = 3) or 25-gauge (n = 4) vitrectomy system. Mean preoperative and postoperative BCVA were LogMAR 0.44 (20/55) ± 0.14 and LogMAR 0.27 (20/37) ± 0.11, respectively (P = 0.23). Mean preoperative foveal elevation was 560.86 ± 196.57 μm, which significantly decreased postoperatively to 251 ± 79.13 μm (P

By Boral, Subhendu K.; Agarwal, Deepak, ago

FURTHER EVIDENCE AGAINST BILATERAL MANIFESTATION OF COATS DISEASE IN OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY OF THE MACULA

imagePurpose:

Recent studies have questioned the traditional view, which regards Coats disease as a strictly unilateral entity. Applying optical coherence tomography angiography, this prospective, monocentric study investigates quantitative capillary changes of the macula associated with Coats disease.

Methods:

Twenty-four eyes (4 untreated, 8 pre-treated) of 12 patients with stage 2 Coats disease (age range: 9–61 years) and 15 eyes of healthy, age-matched controls from the University of Muenster Medical Center, Germany received macular optical coherence tomography angiography measurements of the superficial, deep, and choriocapillary capillary plexus. Flow density and parameters related to the foveal avascular zone were compared between Coats eyes and fellow eyes, and between fellow eyes and control eyes. Additional subanalyses investigated changes based on disease stage.

Results:

Flow density did not differ between fellow eyes of Coats disease patients and control eyes in any of the parameters investigated. Comparison of Coats eyes to their respective fellow eyes revealed Coats disease to be associated with lower flow density in superficial, deep, and choriocapillary capillary plexus regions, irrespective of disease stage (all P

By , ago