Overview
Alteration of sight refers to any change in visual function or perception, ranging from blurred or distorted vision to partial or complete vision loss, arising from disease, injury, drug effects, or other pathological processes affecting the eye. Such alterations can result from disruption of the retina, macula, optic nerve, or other ocular structures, and may be temporary or permanent depending on the underlying cause. One example is cystoid macular edema, a sight-threatening condition in which fluid accumulates within the macula due to breakdown of the blood-retinal barrier, leading to central vision disturbance. A wide variety of factors can provoke vision changes, including drug reactions; certain medications, even those primarily used for other conditions such as rheumatoid arthritis, have rarely been linked to retinal fluid leakage and visual impairment. Recognising, diagnosing, and managing causes of altered sight is central to ophthalmology, as timely intervention can prevent irreversible damage. Documenting rare or unusual causes, including drug-induced ocular effects, adds to the clinical literature and informs safer prescribing. Related open-access research, including case reports on conditions that threaten or alter vision, is available in this collection.
Research published in this journal
1 peer-reviewed article, ranked by relevance. Each links to its DOI.