Visual aid (7,4) Crossword Clue
Answer: CONTACT LENS (11 letters)
The answer to the crossword clue "Visual aid (7,4)" with 11 letters is "CONTACT LENS".Contact lens is a thin, curved lens placed directly on the surface of the eye to correct vision problems. It serves as a convenient alternative to eyeglasses, providing clear vision without the need for frames and allowing for a more natural field of view.
Why “Contact Lens” Fits
The clue asks for a phrase (7,4) meaning “visual aid.” The answer, CONTACT LENS, fits perfectly:
- Visual aid: Contact lens refers to a small, curved optical device worn directly on the cornea of the eye to correct or improve vision — exactly matching the clue’s definition.
- Direct match: With eleven letters divided as (7,4), contact lens fits the enumeration precisely.
- Precise meaning: The phrase represents a medical and optical aid designed to serve the same purpose as glasses, enhancing eyesight or cosmetic appearance.
Contact lenses are one of the most important innovations in modern vision correction:
Origin and history:
- The concept dates back to the early 1500s, when Leonardo da Vinci first sketched ideas for vision correction through water-filled lenses placed on the eye.
- The first practical contact lens was created in 1887 by German glassblower F. A. Müller.
- Plastics revolutionised lens design in the 20th century, leading to lightweight, comfortable versions used today.
Function and use:
- Contact lenses correct common eye conditions such as myopia (nearsightedness), hyperopia (farsightedness), astigmatism, and presbyopia.
- They are placed directly on the eye’s surface and float on the tear film, refracting light to achieve clear vision.
Types of contact lenses:
- Soft lenses — made of flexible silicone hydrogel; most common and comfortable.
- Hard lenses or rigid gas permeable (RGP) lenses — long-lasting but require adaptation.
- Coloured or cosmetic lenses — used for aesthetic purposes.
Examples:
- “She prefers contact lenses to glasses for sports.”
- “Daily disposable contact lenses offer added convenience.”
- “He adjusted his contact lenses before reading.”
In quick crosswords like “Visual aid (7,4),” clues for common medical or optical objects tend to be direct and factual:
Definition: The clue “visual aid” fully defines contact lens as an eye device assisting with vision correction.
Clue type: Straightforward definition clue — no wordplay or misleading wording.
Solving approach:
- When solving clues related to sight or vision, think of tools like spectacles, glasses, lenses, or contacts.
- The (7,4) enumeration strongly hints at compound terms like contact lens or reading glass.
Crossword pattern: Everyday objects that aid human senses — like hearing aid, contact lens, or eye drop — are often used in puzzles for their clear, practical definitions.
