Association Between E-Cigarette Use and Visual Impairment in the United States.

Purpose: To determine whether there is an association between e-cigarette use and visual impairment in the United States adult population.

Design: Cross-sectional.

Methods: In this population survey study, we reviewed 1,173,646 adults ≥18 years of age from all 50 United States and 3 U.

Clinical laboratory tests associated with survival in patients with metastatic renal cell carcinoma: A Laboratory Wide Association Study (LWAS).

Background: Prognostic models for patients with metastatic renal cell carcinoma (mRCC) include select laboratory values. These models have important limitations, including reliance on a limited array of laboratory tests, and use of dichotomous ("high-low") cutoffs. We applied a Laboratory-Wide Association Study (LWAS) framework to systematically evaluate common clinical laboratory results associated with survival for patients diagnosed with mRCC.

Association of optical cataract indices with cataract severity and visual function.

Purpose: The purpose of this study is to determine the correlation between subjective and optical measurements used during cataract evaluation, including the iTrace Dysfunctional Lens Index (DLI), the HD Analyzer Objective Scatter Index (OSI), Lens Opacities Classification System III (LOCS III), Visual Function-14 Questionnaire (VF-14), and the Pelli-Robson Contrast Sensitivity Chart (PRCSC).

Methods: Seventy eyes from 70 patients were enrolled, including all stages of age-related nuclear cataracts. The LOCS III-NO with a cutoff of 3.

Faster Recovery of Internal Ophthalmoplegia than External Ophthalmoplegia in a Miller Fisher Variant of Guillain-Barre Syndrome.

We present a case of classic Miller Fisher Syndrome (MFS) variant of Guillain-Barre Syndrome (GBS) with detailed description in the difference between the internal and external ophthalmoplegia. They are different in their onset, duration, and recovery.

Guillain-Barré syndrome in a man presenting with upper extremity monoplegia.

Outside academia, community and rural medical centers often rely on clinical signs and symptoms for early intervention, as means of gathering objective data may be unavailable, or the reliance of biological testing may take too long to return. Continued reporting of atypical presentations is therefore necessary for broadening clinical recognition of such cases.

Anterior Segment Optical Coherence Tomography of Ocular Cystinosis Confirmed by Electron Microscopy.

Purpose: To report a case of ocular cystinosis diagnosed by anterior segment optical coherence tomography (AS-OCT) and histopathology.

Methods: A 67-year-old man who presented with eye pain was found to have unilateral corneal crystal deposition. Ocular cystinosis was diagnosed by histopathology, AS-OCT, and lack of renal involvement of the disease.

Repeatability of central corneal thickness measurements of donor corneas in preservation chamber using Fourier-domain anterior segment optical coherence tomography.

To evaluate the repeatability of central corneal thickness (CCT) measurements in donor corneas using optical coherence tomography (OCT, RTVue-Optovue, Inc., Fremont, CA). Consecutive corneas were measured by a single observer using the RTVue.

Astigmatism induced by intraocular lens tilt evaluated via ray tracing.

Purpose: To evaluate astigmatism induced by aspheric and toric intraocular lens (IOL) tilt using a ray-tracing model.

Setting: Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, USA.

Design: Experimental study.