unifocal
unifocal — adjective
- unifocalpositive
- more unifocalcomparative
- most unifocalsuperlative
1. Relating to something that happens at, comes from, or affects only one specific
Relating to something that happens at, comes from, or affects only one specific point, area, or source — for example, a single spot of disease inside an organ, or a lens made for seeing clearly at only one fixed distance.
Dr. Park explained that the tumour was unifocal, so surgeons could remove all of it.
unifocal tumour — describing a single location of disease
Jude chose unifocal reading glasses because his distance vision was still fine without correction.
unifocal + reading glasses / lens type
The optometrist recommended unifocal contact lenses for Yael, whose near vision was the only issue.
Reema and her brother compared unifocal and bifocal options before ordering their new glasses online.
- monofocal
More common in ophthalmology; 'monofocal lens' is the standard term for an intraocular or contact lens with a single power.
- single-vision
Used for eyeglass lenses that correct vision at one distance only; less technical than 'unifocal'.
- localised
Used for disease processes affecting one area; broader and more widely understood than 'unifocal'.
- multifocal
Occurring in or affecting multiple separate locations; the direct antonym in both medicine and optics.
- bifocal
Describes lenses split into two segments for near and distance vision; a specific subtype of multifocal.
用法筆記
Most common in medical or optical contexts — describing pathology findings (e.g. 'unifocal disease'), cardiac rhythm patterns (e.g. 'unifocal premature contractions'), or the design of corrective lenses. In everyday conversation, terms like 'single-vision' (for lenses) or 'localised' (for medical findings) are more common.