# Understanding amblyopia from the perspective of neurovascular units: changes in the retina and brain

## TL;DR

This paper reviews how changes in the neurovascular unit in the retina and brain contribute to amblyopia, a developmental vision disorder.

## Contribution

The paper introduces a new perspective on amblyopia by focusing on the role of neurovascular units, including blood flow and neurotransmitter regulation.

## Key findings

- Amblyopia involves pathological changes in the neurovascular unit in both the retina and brain.
- Functional interactions within the neurovascular unit are altered in amblyopia patients and experimental models.
- Blood flow and neurotransmitter regulation are critical in the formation of amblyopia.

## Abstract

As a developmental vision disorder, amblyopia has traditionally been studied with a focus on neurons. However, the neurovascular unit (NVU), a dynamic functional complex of neurons, blood vessels, and glial cells, has recently been implicated in amblyopia. This review systematically discusses the pathological changes and functional interactions of the NVU in retina and brain in amblyopia patients and experimental models, providing a new perspective for clinical intervention.

Summary diagram illustrating the formation of amblyopia, highlighting alterations in various cellular components of the neurovascular unit in the retina and brain, where blood flow and neurotransmitter regulation play a crucial role.Illustration depicting the causes and effects of amblyopia. Atypical binocular factors such as monocular strabismus and anisometropia lead to amblyopia with decreased visual acuity. An eye exam shows no organic lesions. Diagrams compare normal and amblyopic retinas and brains, hypothesized that cerebral blood flow and neurotransmitter activity play critical roles in the process.

Summary diagram illustrating the formation of amblyopia, highlighting alterations in various cellular components of the neurovascular unit in the retina and brain, where blood flow and neurotransmitter regulation play a crucial role.