What does retinitis mean?
Retinitis is a medical term for inflammation of the retina, the light-sensitive tissue lining the back of the eye and responsible for converting light into visual signals. The word is used in clinical and diagnostic contexts, as in acute retinitis or cytomegalovirus retinitis, and may refer to inflammation associated with infection, injury, or other conditions affecting the eye. It should not be confused with retinopathy, a broader term covering disease or damage involving the retina, nor with retinitis pigmentosa, a specific inherited degenerative disorder. Retinitis can affect vision and may cause symptoms such as reduced visual acuity, altered color perception, or floaters, depending on its cause and extent. Although it is closely related to the familiar word retina, retinitis has a more specialized use because it identifies a pathological inflammatory process rather than the anatomical structure itself. In general writing, the term is appropriate when reporting a medical diagnosis or discussing a named condition; more conversational wording is usually preferable when speaking informally about eye symptoms.
nounRetinitis is inflammation of the retina, the light-sensitive tissue at the back of the eye.
- Inflammation of the retina, the light-sensitive tissue at the back of the eye.
"The ophthalmologist diagnosed acute retinitis after examining the patient's inflamed retina."
"The ophthalmologist diagnosed acute retinitis after examining the patient's inflamed retina."
"Cytomegalovirus retinitis can occur in people whose immune systems are severely weakened."
The plural is used when referring to distinct cases or types of retinitis; the term is also commonly used as a mass noun.
"Severe bilateral retinitides can cause substantial visual impairment."
The ending -itis means inflammation, so retinitis literally names an inflamed retina.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of retinitis
Retinitis combines the Latin retina with the Greek-derived medical suffix -itis, meaning inflammation. The form reflects modern medical word-building and belongs to a family including retinal and retinopathy.
How retinitis is actually used
Retinitis is chiefly a medical term and is normally used in diagnosis, clinical writing, and specialist discussion. It is often encountered in compound names identifying a particular cause or form.
Easily confused with retinitis
Retinitis specifically denotes inflammation of the retina, whereas retinopathy is a broader term for disease or damage affecting the retina.
Retinitis pigmentosa is an inherited degenerative retinal disorder and is not simply another name for retinal inflammation.