Tear functions in patients with pinguecula

Area of Science:

• Ophthalmology
• Ocular Surface Disease
• Tear Film Dynamics

Background:

• Pinguecula is a common degenerative condition of the conjunctiva.
• Alterations in the ocular surface environment may contribute to pinguecula development.

Purpose of the Study:

• To evaluate tear flow, tear film stability, and mucus condition in individuals with pinguecula.
• To compare these parameters between patients with pinguecula and a control group.

Main Methods:

• Schirmer I test for tear production, ferning test for mucus structure, and tear break-up time (BUT) for tear film stability were performed.
• 57 patients with pinguecula and 57 age-matched controls were included in the study.
• Statistical analysis was conducted to compare the results between the two groups.

Main Results:

• No significant difference in tear flow (Schirmer test) was observed between the pinguecula and control groups.
• Tear film stability, measured by BUT, was significantly reduced in patients with pinguecula compared to controls.
• Ferning tests revealed significantly abnormal mucus structure in the eyes with pinguecula.

Conclusions:

• Pinguecula is associated with impaired tear film stability and altered mucus characteristics.
• These findings suggest that changes in the mucin layer may play a role in the pathogenesis of pinguecula.
• Alternatively, these ocular surface alterations might be a consequence of existing cellular pathology.