Compared to incidence in Hispanic and European populations, PACG was more common among South Brazilians, whereas the POAG rates were similar. The rate of undiagnosed glaucoma was almost 90%. The higher POAG prevalence in the population self-reported as nonwhite may affect the estimation of glaucoma in Brazil, as more than 40% of the population self-report their race as nonwhite.

Independent of method, determining orbital volume is inherently difficult owing to the hyperbolic parabola that is the orbit entrance; all methods require estimation. Glass beads and casts yielded more reproducible values but can only be used in cadavers. CT measurement is prone to error due to the variability of methodologies used but allows access to enormous testing populations. Interstudy comparison is currently not possible. CT volumetric software with strict universal standards for estimating the anterior limit of the orbit appears to be the best method of studying human orbital volumes.

The management of cicatricial entropion represents a therapeutic challenge especially when the underlying causes are progressive cicatricial diseases that affect the ocular surface. The authors aimed to report long-term efficacy of labial mucous membrane graft to manage severe cicatricial entropion of the upper eyelid. This study is a retrospective chart review of patients who underwent tarsotomy associated with labial mucous membrane graft to treat severe cicatricial entropion of the upper eyelid. Surgeries were performed over a 16-year period. Clinical data (age, gender, etiology of the cicatricial entropion, improvement of symptoms, eyelid position, recurrence, complications, and follow-up period) were extracted from these patients' charts. Etiology of the cicatricial entropion, improvement of symptoms, eyelid position, recurrence, complications, and follow-up period were evaluated. Sixty-three eyelids from 44 patients underwent surgery. Mean follow-up was 48.4 ± 46.1 months (range 6 months to 15 years). Main underlying diagnoses were Stevens-Johnson syndrome (63%), trachoma (19%), chemical injury (8%), and trauma (5%). Forty-three patients (98%) reported improvement of ocular symptoms after the procedure. Complete resolution (restoration of the upper eyelid margin to normal anatomic position with good esthetic appearance) was achieved in 52 eyelids (83%). Recurrence occurred in 7 (11%) eyelids. No postoperative infection, failure of graft survival, or other complications were observed. The use of labial mucous membrane as a posterior lamella graft showed good functional and cosmetic outcomes, long-term stability and low recurrence rates in the treatment of severe cicatricial entropion of the upper eyelid.

Background and purpose: It is challenging to assess essential blepharospasm (EB) patients objectively because they exhibit chaotic patterns of abnormal eyelid movements.Previously employed objective approaches used systems with low levels of accuracy systems or were too complex to be applied in routine clinical practice. We aimed to develop a practical tool using a smartphone camera and custom-made software to objectively assess the therapeutic effects of botulinum toxin in blepharospasm patients.Methods: Thirty-four patients with EB were evaluated before and 15 days after receiving onabotulinumtoxinA injections. The control group was composed of 19 age-matched healthy individuals. A smartphone (iPhone 6 S; Apple) was used to record spontaneous eyelid movements for 3 min, after which eyelid movement frequency was analysed using custom-made software.Results: Before treatment, eyelid movement frequency was significantly higher in the EB group (21.55 ± 13.30 movements/min) compared to the control group (8.26 ± 8.89 eyelid movements/min; p < 0.001). The frequency of spontaneous eyelid movements was significantly reduced after treatment in the EB patients (8.46 ± 6.32 eyelid movements/min; p < 0.001). After treatment, no statistically significant difference in eyelid movement rate was observed between the EB patients and the control group (p = 0.32).Conclusions: Assessment of the spontaneous eyelid movements obtained with the smartphone camera and analysed with the custom-made software enabled us to objectively measure the therapeutic effects of botulinum toxin in patients with blepharospasm. Further refinement of this system could enable customized and fine adjustments to botulinum toxin doses based on each patient's needs.