Retina

Pronunciation: /ˈrɛtɪnə/

Definitions of retina

noun a layer at the back of the eyeball that contains cells sensitive to light, which trigger nerve impulses that pass via the optic nerve to the brain, where a visual image is formed

Example Sentences

A1 The retina is the part of the eye that receives light and sends signals to the brain.

A2 Damage to the retina can cause vision problems.

B1 The retina contains cells called photoreceptors that help us see in different lighting conditions.

B2 An eye doctor can examine the retina to check for any signs of disease or damage.

C1 The retina is a complex structure that plays a crucial role in the visual system.

C2 Research has shown that certain nutrients can help maintain the health of the retina.

Examples of retina in a Sentence

formal The retina is a layer of tissue at the back of the eye that is sensitive to light.

informal I think I strained my retina from staring at the screen for too long.

slang My eyes are so tired, I feel like my retinas are burning.

figurative The vivid colors of the sunset imprinted on my retina, creating a lasting memory.

Grammatical Forms of retina

• plural: retinas
• comparative: more retina
• superlative: most retina
• present tense: retinas
• future tense: will retina
• perfect tense: have retinad
• continuous tense: is retining
• singular: retina
• positive degree: retina
• infinitive: to retina
• gerund: retinaing
• participle: retinaed

Origin and Evolution of retina

First Known Use: 1664 year

Language of Origin: Latin

Story behind the word: The word 'retina' originated from the Latin word 'rētēna' which means net or network.

Evolution of the word: The word 'retina' has retained its original meaning of the net-like structure at the back of the eye responsible for sensing light and sending signals to the brain. Its usage has expanded to include various medical terminologies related to the eye and vision.