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Clinical Insights Based in Current Research

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Glossary

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Daily Disposables (DD)

Single use lenses that are worn during the waking hours and then discarded.

Daily Wear (DW)

A lens wear schedule requiring daily or more frequent removal for cleaning and other purposes. Lenses are not worn during sleeping hours.

Debris

Waste products located between the contact lens and cornea. Post-lens tear debris has traditionally been considered to have the appearance of amorphous cellular material. If substantial amounts of debris are trapped under a lens, staining will be present upon lens … Continue reading →

Deposits

An acquired protein and/or lipid film or haze on the anterior or posterior lens surface.

Disposable lenses

Defined by the FDA as contact lenses worn for 1 week of extended wear and those discarded daily (or after one-time use). Defined clinically as contact lenses worn for 1 week of extended wear and up to 2 weeks of … Continue reading →

Distortion

see Corneal distortion.

Dk

Oxygen permeability of a contact lens material. Dk usually depends on the water content of a hydrogel lens material and the silicone content of a silicone hydrogel lens material. Oxygen is more soluble in water than in PMMA, but far … Continue reading →

Dk/L

  See Dk/t

Dk/t

Oxygen transmissibility of a contact lens material with consideration of the thickness of the lens. Dk/t = Dk / average thickness (L) of the contact lens

DSCL

  Disposable soft contact lens. Also see Disposable lenses.

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Issues

  • A Review of Ocular Surface Immunology
  • Corneal Ectatic Disorders
  • The role of biometry in myopia management
  • In-Office Procedures for Dry Eye
  • Multifocal Contact Lenses
  • Artificial Tears: An Update
  • Myopia: New Evidence and Best Practices
  • Neuropathic Pain
  • Specialty Rigid Lenses
  • Contact lens compliance
  • Pandemic update
  • Digital Devices and Dry Eye: A Growing Issue
  • The long and short of axial length
  • Using BCLA CLEAR with your patients
  • Helping your patients through allergy season
  • Getting the measure of meibomian glands
  • 2020: An extraordinary year
  • Scleral lens update
  • A dose of myopia
  • New news since TFOS DEWS II
  • COVID-19 Special Edition
  • Material considerations
  • Putting dry eye theory into practice
  • Getting started with Ortho-K
  • Infiltrates – an update
  • Staining
  • Myopia matters: Summarising the IMI reports
  • Lids and contact lenses
  • Myths
  • Revisiting patient compliance
  • Contact Lenses & Kids
  • Interprofessional Collaboration
  • Digital eye strain
  • New Dry Eye Technology
  • Update on Presbyopia
  • Taking stock of dry eye disease: DEWS II
  • Scleral Lenses
  • Pain and Sensation
  • Lab measurements in clinical practice
  • Control of pediatric myopia
  • Nutrition
  • Rethinking contact lens deposits
  • Extended wear
  • Daily Disposables
  • Eyelash Mites (Demodex)
  • Outsmarting bacteria with new technology
  • Youth and contact lenses
  • Sports Vision
  • Ocular effects of UV radiation from the sun
  • Eyelid Conditions
  • Makeup: Impact on ocular health
  • Myopia Control – Update 2014
  • The Growing Prevalence of Myopia
  • Cosmetic contact lenses
  • Contact lens discomfort – The essentials
  • Technology and contact lens research
  • It's A Question of Comfort
  • Contact lens materials
  • Let's talk about SICS
  • Conjunctival Controversies
  • Kids & Contact Lenses
  • One-day silicone hydrogel lenses
  • Solutions
  • Spotlight on Scleral lenses
  • Drug delivery via contact lenses
  • Ocular allergies
  • Reducing lens case contamination
  • Dry eye and meibomium gland dysfunction
  • Myopia Control
  • Presbyopia
  • Compliance and non-compliance
  • Lens care
  • Celebrating 50 years of contact lenses

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