Pronunciation: [ɹˈɛtɪnə͡l] (IPA) 
Retinal is a word commonly used in ophthalmology to describe the part of the eye responsible for detecting light. It is spelled with an 'e' after the 't' because it comes from the word 'retina', which is pronounced /ˈrɛtɪnə/ (re-TIN-uh) in English. The '-al' suffix is used to denote something relating to or pertaining to the retina, hence 'retinal'. The phonetic transcription of the word 'retinal' is /ˈrɛtənəl/ (REH-tuh-nuhl).
Retinal is an adjective that pertains to the retina, which is a thin, delicate layer of tissue located at the back of the eye. The term "retinal" is commonly used to describe anything related to or affecting the retina.
The retina is a crucial component of the visual system, as it contains a vast number of specialized cells that are responsible for detecting and converting light into electrical impulses. These impulses are then transmitted to the brain via the optic nerve, allowing for the perception of visual stimuli.
In the field of medicine, the term "retinal" is often associated with various eye conditions or disorders that affect the retina. For instance, diseases like retinal detachment, retinitis pigmentosa, macular degeneration, and diabetic retinopathy all involve damage or abnormality of the retina.
Additionally, "retinal" can refer to certain medications or treatments that are specifically designed to target the retina. These may include retinal injections or surgical procedures aimed at repairing or improving retinal function.
Overall, the term "retinal" encompasses a wide range of meanings and applications, all of which revolve around the intricate structure and essential role of the retina in vision.
Relating to the retina.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
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The word "retinal" derives from the noun "retina", which refers to the delicate, light-sensitive layer of tissue lining the inner surface of the eye. The term "retina" is a Latin noun that comes from the word "rete", meaning "net" or "mesh". This is because the retina is comprised of a complex arrangement of interconnected nerve cells resembling a net or mesh structure. The suffix "-al" in "retinal" is added to form an adjective, indicating that it pertains to or is related to the retina.
