Bausch & Lomb:
An eye health company providing one of the most diverse eye care product portfolios. This company is well known for contact lens development and refined improvements. Their products range over the entire spectrum of wearing modalities and include such well-known brand names as PureVision®, SofLens®, Boston® and Optima®. Their products for refractive surgery include The Technolas® Excimer Laser the Zyoptix® system for customized wavefront vision correction (customized LASIK) and the Zyoptix XP and Hansatome® brands of microkeratomes.
BCVA:
See best corrected visual acuity.
Best corrected visual acuity (BCVA):
The best possible vision a person can achieve with corrective lenses.
Bifocal lens:
Spectacle lenses used by presbyopic (LINK) patients. The top portion of the lens allows clear viewing of distance objects, while the bottom portion of the lens allows near objects to be viewed. New Intraocular Lens technology provides great promise for patients who are currently reliant on bifocals to see both near and far clearly. SEE multifocal IOL.
Binocular Vision:
The blending of separate images seen by each eye into a single image, allowing images to be seen with depth perception.
Source - www.mneye.com
Blepharitis:
A chronic inflammatory condition of the eyelids, common in children and adults, which causes redness, burning, itching, swollen and crusty lid margins and dry-eye symptoms.
Source - www.mneye.com
Blind Spot:
A small area of the retina where the optic nerve enters the eye. In this small area, no vision exists, creating a small a gap in the visual field, which is normal and present in all people.
Source - www.mneye.com
Botox:
A simple, nonsurgical, treatment that can temporarily relax muscle tone, smoothing facial wrinkles and severe frown lines between the brows. Botox is a toxin that is produced by the botulism bacteria which has been pharmacologically processed to make it safe for administration by a doctor. When injected in very tiny amounts into the eyelid muscles, botox has also been found to be effective in stopping uncontrollable eyelid spasms.
Bowman's membrane:
A thin, clear membrane is situated just under the surface epithelium of the cornea. This membrane is composed of strong collagen fibers and helps the cornea maintain its shape.
Broad beam laser:
An older style of excimer laser which applied refractive ablation treatment to the cornea using a broad laser beam. Most excimer lasers used today utilize much smaller beams for more accurate shaping of the cornea.
