Contact Lens and Anterior Eye Research Unit (CLAER)

The Contact Lens and Anterior Eye Research Unit (CLAER) was established within the Clinical Investigation and Vision Sciences Research Group in September 2001, and continues to expand.

The focus of the unit is principally on clinically-related research in corneal function, tear-film physiology and contact lenses. A better knowledge of the interaction between the cornea and the tear-film is vital in understanding the aetiology and treatment of dry-eye, and for successful contact lens wear. Emerging techniques in biochemistry now permit the examination of the tear film for inflammatory markers and electrolyte concentration: one of the core aims of the unit is to attempt to connect the biological and clinical findings in ocular and systemic abnormalities. The unit is also interested in investigating the role of patient anxiety and communication upon patient outcomes, such as compliance, within contact lens practice.

We have formed collaborative links nationally and internationally, with both academic institutions and industry, and regularly present our results at conferences world-wide.

Our research interests principally centre on the examination of the ocular surface and the tear film, particularly in contact lens wear, and ocular & systemic disease.

Current projects within the research unit include:

  • Ocular surface sensation
  • Inflammatory markers in the tear film
  • Measurement of tear meniscus height
  • Temperature behind contact lenses
  • The role of mucins in frictional forces on the ocular surface
  • Corneal staining
  • Use of dry eye drops
  • Investigating contact lens non-compliance

Academic staff

Kat Evans

Dr Katharine Evans


+44 (0)29 2087 6237
Pult, Heiko

Dr Heiko Pult

Honorary Research Fellow

+49 (0) 174 90 250 0
Julie Albon

Dr Julie Albon

Lecturer, Optic Nerve Head Group Leader, Person designate, Cathays Park HTA satellite licence

+44 29208 75427

Yr Athro Christine Purslow

Honorary Senior Research Fellow

Rachel North

Yr Athro Rachel North


+44 (0)29 2087 5114


This research was made possible through our close partnership with and support from: