Level of Eye Care Among Eye Care Providers Themselves.

Objectives: To assess the prevalence of eye disease and frequency of eye examinations among eye care providers themselves.

Methods: In this cross-sectional study, an anonymous questionnaire was used to evaluate occurrence of eye disease and frequency of eye examinations among eye care providers including the clinicians (ophthalmologists, ophthalmology residents, and optometrists) as well as the support staff (ophthalmic technicians and eye clinic administrative staff).

Results: The survey response rate was 98 of 173 (56.

Suboptimal Intermediates Underlie Evolution of the Bicoid Homeodomain.

Changes in regulatory networks generate materials for evolution to create phenotypic diversity. For transcription networks, multiple studies have shown that alterations in binding sites of cis-regulatory elements correlate well with the gain or loss of specific features of the body plan. Less is known about alterations in the amino acid sequences of the transcription factors (TFs) that bind these elements.