IMPORTANCE Residential (geographic) history and extent of solar exposure may be important risk factors for exfoliation syndrome (XFS) but, to our knowledge, detailed lifetime solar exposure has not been previously evaluated in XFS.OBJECTIVE To assess the relation between residential history, solar exposure, and XFS. DESIGN, SETTING, AND PARTICIPANTSThis clinic-based case-control study was conducted in the United States and Israel. It involved XFS cases and control individuals (all Ն60-year-old white individuals) enrolled from 2010 to 2012 (United States: 118 cases and 106 control participants; Israel: 67 cases and 72 control participants). MAIN OUTCOMES AND MEASURESWeighted lifetime average latitude of residence and average number of hours per week spent outdoors as determined by validated questionnaires. RESULTSIn multivariable analyses, each degree of weighted lifetime average residential latitude away from the equator was associated with 11% increased odds of XFS (pooled odds ratio [OR], 1.11; 95% CI, 1.05-1.17; P < .001). Furthermore, every hour per week spent outdoors during the summer, averaged over a lifetime, was associated with 4% increased odds of XFS (pooled OR, 1.04; 95% CI, 1.00-1.07; P = .03). For every 1% of average lifetime summer time between 10 AM and 4 PM that sunglasses were worn, the odds of XFS decreased by 2% (OR, 0.98; 95% CI, 0.97-0.99; P < .001) in the United States but not in Israel (OR, 1.00; 95% CI, 0.99-1.01; P = .92; P for heterogeneity = .005). In the United States, after controlling for important environmental covariates, history of work over water or snow was associated with increased odds of XFS (OR, 3.86; 95% CI,); in Israel, there were too few people with such history for analysis. We did not identify an association between brimmed hat wear and XFS (P > .57). CONCLUSIONS AND RELEVANCELifetime outdoor activities may contribute to XFS. The association with work over snow or water and the lack of association with brimmed hat wear suggests that ocular exposure to light from reflective surfaces may be an important type of exposure in XFS etiology.

The main reason for surgical failure after bilateral medial rectus muscle recession (BMR) in developmentally delayed children remains residual esotropia. However, with time, more patients demonstrated consecutive exotropia. Although it is difficult to achieve a stable long-term ocular alignment in children with developmental delay, satisfactory results may be achieved with additional surgical procedures. The optimal amount of primary recession and whether to perform the surgical schedules according to the Parks tables or to reduce the amount of the recession when operating on children with developmental delay is still debatable.

Purpose To report here a case of uncontrolled glaucoma during third-trimester of pregnancy that was treated successfully with bilateral Xen gel stent insertion. Observations A 35-year-old woman presented during the third trimester of pregnancy with bilateral uncontrolled primary open angle glaucoma. Her disc examination and visual fields were consistent with advanced glaucoma. After failed Selective Laser Trabeculoplasty and maximal medical treatment, including Acetazolamide, she was treated with bilateral consecutive Xen stent surgery with successful control of her intraocular pressure. Conclusions and Importance The use of Xen implant may have advantages over traditional trabeculectomy, especially during pregnancy, as the procedure is shorter, with less dependence on on-table antimetabolite and being minimally invasive with sparing of the conjunctiva.

Our results did not show differences in neuro-ophthalmological findings between intra- and extra-axial lesions causing PS. However, the presence of hydrocephalus was an important factor influencing clinical findings. The prognosis of PS was less favorable than generally reported.

A 10-year-old girl presented with painless unilateral left upper lid ptosis. A nontender hard mass was palpated in the left upper lid. Blood smear was compatible with the diagnosis of leukemia. The cause of ptosis was now thought to be a mass composed of myeloid blast cells (myeloid sarcoma).

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