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Related Experiment Videos

Tarsal abnormalities: a new grading system

T Lofstrom1, J S Anderson, A Kruse

  • 1Synoptik Contact Lens R&D Clinic, Copenhagen, Denmark.

The CLAO Journal : Official Publication of the Contact Lens Association of Ophthalmologists, Inc
|November 4, 1998
PubMed
Summary
This summary is machine-generated.

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A new 8-stage photographic scale for grading tarsal conjunctiva offers more precise assessment of contact lens wearers' eye health compared to the current 5-stage system. This improved scale reliably detects differences in conjunctival changes related to lens care regimens.

Area of Science:

  • Ophthalmology
  • Biomaterials Science

Background:

  • The current 5-stage scale for grading tarsal conjunctiva lacks precision in assessing tissue condition and detecting subtle changes.
  • Contact lens wear and care regimens can impact ocular surface health, necessitating accurate grading systems.

Purpose of the Study:

  • To evaluate a novel 8-stage photographic system for grading tarsal conjunctiva in contact lens wearers.
  • To compare the precision and repeatability of the new 8-stage scale against the existing 5-stage scale.

Main Methods:

  • Retrospective review of 145 individuals wearing Acuvue lenses with different care systems (AOSEPT, OPTI-FREE, OXYSEPT, RENU).
  • Prospective study of 30 patients using the OPTI-FREE system to assess the repeatability of the new grading scale over three months.
  • Investigator grading of tarsal conjunctiva and lens cleanliness; patient self-reporting of comfort, vision, and care system simplicity.

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Main Results:

  • The 8-stage scale detected significant differences in tarsal scores between the RENU care system and other systems, unlike the 5-stage scale.
  • Significant variations were observed in lens cleanliness and patient-reported outcomes across different care systems.
  • The prospective study indicated no significant changes in tarsal scores over the three-month follow-up period, suggesting scale stability.

Conclusions:

  • The new 8-stage photographic grading system appears more precise for evaluating tarsal conjunctiva condition.
  • This scale demonstrates a greater ability to differentiate the effects of various contact lens care regimens on tarsal conjunctival scores.
  • Preliminary findings suggest the 8-stage scale is reliable and repeatable for assessing ocular surface changes in contact lens wearers.