J Korean Ophthalmol Soc.  2013 May;54(5):691-695. 10.3341/jkos.2013.54.5.691.

Clinical Features of Pinguecula in North-Western Gyeonggi Province

• Shin KH
• Kwon JW

• KMID: 2217032
• DOI: http://doi.org/10.3341/jkos.2013.54.5.691

Abstract

PURPOSE
To investigate the clinical features of pingueculae in North-western Gyeonggi Province.
METHODS
In this prospective study, we determined the clinical features of pingueculae for 120 patients who visited our hospital due to pinguecula-related symptoms between October 2011 and May 2012.
RESULTS
Among the 374 pingueculae of 120 patients, 208 (56%) pingueculae were found on the nasal side of the conjunctiva and 166 (44%) on the temporal side. The grade of the pingueculae on the temporal conjunctiva was 0.81 +/- 0.626 and was 1.18 +/- 0.648 on the nasal conjunctiva, which was higher (p < 0.001). Pingueculae on the nasal conjunctiva showed greater elevation than on the temporal side (p < 0.001). The horizontal and average diameters of the pingueculae on the nasal and temporal conjunctiva showed no significant difference, but the vertical diameters were 2.40 +/- 0.88 mm and 2.14 +/- 0.91 mm, respectively, showing the vertical diameter on the nasal conjunctiva was significantly greater (p < 0.044). Moreover, the horizontal diameter of each pinguecula was greater than the vertical diameter (p < 0.003).
CONCLUSIONS
The average grade of pingueculae in North-western Gyeonggi Province increased with age. Compared to the temporal pingueculae, the nasal pingueculae were more protrudent in shape and had higher grades. Furthermore, each pinguecula was oval-shaped with a larger horizontal than vertical diameter. The pingueculae on the temporal side were flatter and more oval-shaped.

Keyword

Clinical features; Diameter of pinguecula; Grade; Pinguecula

MeSH Terms

Conjunctiva
Humans
Pinguecula
Prospective Studies

Figure

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  Figure 1. Grading system for pinguecula. Pinguecula was graded into three categories. (A) P (0); no pinguecula, (B) P (1); mild or moderate pinguecula, yellowish white, and flat or slightly elevated lesion with a maximum diameter <5 mm, (C) P (2); severe pin-guecula, highly vascularized and elevated lesion or large pinguecula with a diameter ≥5 mm.

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  Figure 2. The relationship between age and average grade of pingueculae ( p < 0.001). The average grade of pingueculae was defined as an average of each pinguecula that exists in both eyes.

Reference

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