Dryness Eye: development of a medium-range nursing theory.
Dry Eye Syndromes; Keratoconjunctivitis sicca; Nursing theory; Nursing.
This is a study about the development of a medium-range nursing theory, based on Callista Roy's adaptation model, about dryness eye. Its general objective was to develop a mid-range nursing theory of eye dryness based on Roy's adaptation model. This is a theoretical research, of descriptive-exploratory nature, with a qualitative approach. To reach the objectives, the strategies for the development of theories proposed by Walker and Avant (2019) were adopted, electing the concept analysis strategy to present the concepts, the establishment of relational statements from the statement synthesis and the strategy. From theory analysis to the realization of theoretical deduction. This study took place in five stages, namely: scoping review, concept analysis, statement synthesis, theoretical modeling and construction of elements for nursing taxonomies from the developed theory. In the first stage a Scoping Review was conducted guided by the steps recommended by the Joana Briggs Institute (2015). After identifying the research question, a search protocol was established and from the descriptors “dry eye syndromes” and “keratoconjuntivite cicca”, based on: Scopus, Web of Science, Science Direct, the identified synonyms were used as keywords in the electronic search engine in order to broaden the search. We obtained a sample of 193 studies that served as the basis for building the elements of the theory. The concept and statements were obtained from the primary studies included in this sample. When analyzed and synthesized, they were modeled from the theoretical deduction made by the analysis of Roy's adaptation model. From the analysis of the theory, it was found that this model starts from the metaparadigmatic understanding that the environment is an actor in human adaptive systems; health as a state in which the person seeks to stay through adaptation; nursing as a profession that promotes adaptation; and the person as an adaptive system that is controlled by stimuli, control and feedback. The central proposition of this medium range theory is that the event of eye dryness occurs as a result of activation of focal stimuli (intrinsic factors that lead to decreased tear production), contextual (environmental / extrinsic factors that promote instability and increased film evaporation lacrimal) and residual (combined), which can lead to adaptation or an adaptation problem. Nursing by identifying the unwanted human response provides conditions that act effectively and are able to reiterate human adaptive mechanisms promoting eye health. From the construction of the theory, propositions of taxonomic elements were elaborated that could serve as basis for the individual to recover the adaptive mechanisms and obtain eye health. It was built the proposition of the nursing result entitled: behavior for prevention of eye dryness and a proposition for the construction of the nursing intervention entitled: control of eye dryness. Based on the propositions, the theory will support the practice by proposing to describe, explain, predict and intervene in the phenomenon under study.