Posters - CONTACT LENS INDUCED PAPILLARY CONJUNCTIVITIS (CLPC)

This Month

Editorial
Issueswith Silicone Hydrogel Lens Wear Silicone hydrogel (SH) materials have allowedclinicians to fit their patients with hydrogel lenses that supply sufficientoxygen to eliminate hypoxia. > more

> Home
> About Us
> Affiliates
> Contact Us
> Disclaimer
> Site Map

Quick Vote:
Have you noticed refractive changes after refitting patients with silicone hydrogel lenses who were long term wearers of hydrogel lenses? >click

Would you like to subscribe to our monthly newsletter? > click

Posters

CONTACT LENS INDUCED PAPILLARY CONJUNCTIVITIS (CLPC)

C Skotnitsky, T Naduvilath, DF Sweeney, P Sankaridurg, BA Holden
Cooperative Research Centre for Eye Research and Technology, University of New South Wales, Australia.

Purpose:

To evaluate pre-disposing factors for developing localised CLPC with high Dk silicone hydrogel extended wear (EW) lenses; subject and lens variables were
studied in a retrospective case control study.

Method:

20 cases of localised CLPC were matched with 20 controls for spectacle refraction, lens type and duration of high Dk EW and prescribed wearing schedules (6 or 30 nights). High Dk lens wear experience ranged from 6 to 21 months. Keratometry readings and history of allergies were compared between cases and controls. Clinical variables including tarsal conjunctival hyperaemia and roughness, tear film debris, overall blepharitis/meibomitis, corneal staining and fitting and surface characteristics of the lenses were measured between the two groups at regular intervals prior to the event. The two groups were compared at baseline and EW using the Group t-test and Fisher’s Exact Test.

Results:

CLPC cases seemed to have a more frequent history of allergy, although not significant at the p<0.05 level (30% cases vs. 5% controls, p=0.09). Mean tarsal conjunctival roughness was mild but significantly greater for the cases as compared to the controls (p<0.05) at baseline and during EW. Similarly, mean tarsal conjunctival and bulbar hyperaemia and lack of patency of meibomian orifices were mild but significantly greater (p<0.01) in the cases as compared to the controls during EW. Lens tightness was very slightly higher for the CLPC cases (47±7% vs. 46±4%, p=0.01) during EW. No notable differences were seen between the 2 groups for other variables.

Conclusions:

Our results suggest that greater tarsal conjunctival roughness at baseline and EW, tarsal conjunctival and bulbar hyperaemia, lens tightness and a lack of patency of meibomian orifices during EW are higher in patients that manifest localised CLPC, allowing for identification of some patient and lens related signs and symptoms.

Download PDF of Poster:

CONTACT LENS INDUCED PAPILLARY CONJUNCTIVITIS (CLPC) - 212KB

You will need Version 4 or later ofAdobe Acrobat Reader to view some documents on this site. You can get the latest version from the Adobe Home site.