Journal: Journal of Ophthalmology

Article Title: Retinal Vessel Diameter Changes in Relation to Dark Adaptation and Acute Hyperglycemia

doi: 10.1155/2018/7064359

Figure Lengend Snippet: Retinal vessel diameter data indexed to baseline (triangles: arteries and squares: veins) in 14 patients with type 2 diabetes who were fasting (glycemia 7.6 ± 1.7 mM) and adapted to room light at baseline (0 minutes). This was followed by a cycle of dark adaptation and fundus photography, during which infrared fundus photography, which had also been made at baseline, was repeated twice. Daylight was reintroduced after 40 minutes and then, 5 min later, participants ingested 75 g of glucose dissolved in water. After 70 more minutes when glycemia had increased to 15.7 ± 4.2 mM, infrared photographs were recorded in daylight, after which a second round of dark adaptation and photography was reinitiated. PG, plasma glucose; OGTT, oral glucose tolerance test; IR, infrared. Values greater than 1 indicate vessel dilation and values lower than 1 indicate vessel contraction. One-sided error bars indicate 1 standard deviation. Asterisk ∗ 1 indicates P < 0.05 compared to the nearest predark adaptation baseline, fasting, or hyperglycemic. Asterisk ∗ 2 indicates P < 0.05 for a given time point during the second (hyperglycemic) dark adaptation cycle compared to the first (fasting) dark adaptation cycle.

Article Snippet: Infrared scanning laser fundus photography (Spectralis HRA + OCT, Heidelberg Engineering, Heidelberg, Germany) was made over a 55-degree angle centered on the optic disc with a nominal resolution of 768 × 768 pixels.

Techniques: Clinical Proteomics, Standard Deviation

Journal: Clinical Ophthalmology (Auckland, N.Z.)

Article Title: Choroidal and macular thickness changes induced by cataract surgery

doi: 10.2147/OPTH.S53989

Figure Lengend Snippet: Retinal and choroidal thickness measurements. Using the calipers provided by the Spectralis® Heidelberg® software, manual retinal macular thickness measurements were performed at seven different locations centered on the fovea, 500 μm apart (top). A mean retinal thickness value was obtained from these measurements. On the same locations used to measure the retinal thickness, manual choroidal measurements were also performed using the calipers, and a mean choroidal thickness was obtained (bottom). Measurements were performed on both horizontal and vertical scans.

Article Snippet: Preoperatively, the patients underwent EDI SD-OCT using the Spectralis® Heidelberg® apparatus (Heidelberg Engineering, Carlsbad, CA, USA).

Techniques: Software

Journal: Clinical Ophthalmology (Auckland, N.Z.)

Article Title: Choroidal and macular thickness changes induced by cataract surgery

doi: 10.2147/OPTH.S53989

Figure Lengend Snippet: Peripapillary choroidal thickness measurements. Peripapillary SD-OCT scans were performed using the EDI mode ( A ). The automatic detection of the internal limiting membrane and retinal nerve fiber layer were manually changed so that they would correspond to the external border of the retinal pigment epithelium and the external limit of the choroid respectively ( B ). Automatic readings of the choroidal thickness were obtained in the quadrants provided by the Spectralis® Heidelberg® software ( C ). Choroidal thickness values are the numbers in black. The numbers in brackets and the color-coding refer to the normative database for RNFL evaluation of the Spectralis Heidelberg and are therefore irrelevant for the results. Abbreviations: EDI, enhanced depth imaging; SD-OCT, spectral domain optical coherence tomography; RNFL, retinal nerve fiber layer; G, general; N, nasal; NS, nasal superior; TS, temporal superior; T, temporal; TI, temporal inferior; NI, nasal inferior.

Article Snippet: Preoperatively, the patients underwent EDI SD-OCT using the Spectralis® Heidelberg® apparatus (Heidelberg Engineering, Carlsbad, CA, USA).

Techniques: Membrane, Software, Imaging, Tomography