July 2019
Volume 60, Issue 9
Open Access
ARVO Annual Meeting Abstract  |   July 2019
The Visual Quality and its Related Life Quality of Pterygium
Author Affiliations & Notes
  • Jin Yuan
    cornea, ZhongShan Opthalmic Center, Guagnzhou, China
  • zhong jing
    cornea, ZhongShan Opthalmic Center, Guagnzhou, China
  • Zhong-Lin Lu
    Ohio State University, Ohio, United States
  • Fang Hou
    School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, China
  • Michael Dorr
    Technical University of Munich, Germany
  • Zhipeng Chen
    zhongshan ophthalmic center, China
  • Shenglan Zhang
    zhongshan ophthalmic center, China
  • Jinrong Li
    zhongshan ophthalmic center, China
  • Footnotes
    Commercial Relationships   Jin Yuan, None; zhong jing, None; Zhong-Lin Lu, Adaptive Sensory Technology (I), Adaptive Sensory Technology (P); Fang Hou, None; Michael Dorr, Adaptive Sensory Technology (I), Adaptive Sensory Technology (P); Zhipeng Chen, None; Shenglan Zhang, None; Jinrong Li, None
  • Footnotes
    Support  This research was supported by the National Key Research and Development Program of China (2017YFC0112400) and the National Natural Science Foundation of China (81670826) to Jin Yuan, the National Natural Science Foundation of China (8177040496) to Jinrong Li, the National Eye Institute (EY021553) to Zhong-lin Lu, and Grant from Wenzhou Medical University (QTJ16006) to Fang Hou
Investigative Ophthalmology & Visual Science July 2019, Vol.60, 4469. doi:
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    • Get Citation

      Jin Yuan, zhong jing, Zhong-Lin Lu, Fang Hou, Michael Dorr, Zhipeng Chen, Shenglan Zhang, Jinrong Li; The Visual Quality and its Related Life Quality of Pterygium. Invest. Ophthalmol. Vis. Sci. 2019;60(9):4469.

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      © ARVO (1962-2015); The Authors (2016-present)

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Purpose : To assess the visual quality including the optical quality and contrast sensitivity function(CSF) of pterygium patients, as well as the prognosis postoperatively

Methods : 31 pterygium patients at different levels ( 14 cases of Grade I, 13 Grade II and 8 Grade III; mean age: 47.8±9.2 yrs) were included in this study. All patients underwent a routine ophthalmic examination, quick CSF tests under full optical correction, the Optical Quality Analysis System (OQAS) test, the oculus keratography 5M (K5) and filled out the VFQ-25 visual quality questionnaire preoperatively. After surgery, the visual quality was followed at the 1st, 3rd and 6th month

Results : The degree of astigmatism increased gradually with the severity of the pterygium, which were -0.30±0.07DS in Grade I, -2.68±0.59 D (P=0.0021) in Grade II and -6.25±1.06(P =0.0059) in Grade III; accordingly, the mean NEI VFQ-25 scores decreased from 73.0±2.0 in Grade I to 64.6±2.0(P=0.07) in Grade II and 55.0±2.9 (P= 0.03) in Grade III. In the K5 test, the bulbar nasal and limbal nasal redness scale increased gradually following the pterygium grade while not the bulbar nasal and limbal nasal, and the nasal side’s redness scale correlated with the degree of astigmatism positively (r = -0.467, P = 0.0071). In the optical quality, the MTF cutoff was the lowest in the Grade III compared with Grade II and I (14.74±3.94 VS 31.99±2.81 VS 40.41±1.89 ; P<0.001). Both the MTFcutoff and the SR correlated positively with the astigmatism degree (r = -3.34, P = 0.0025; r = -0.40, P = 0.0008). In CSF, the cutoff SF was obviously damaged in Grade II (14.79±1.28 cpd, P = 0.048) and III (12.79±1.28 cpd, P = 0.026) patients compared with the normal’s (17.21±1.24 cpd), while not of the Grade I (12.79±1.28 cpd, P = 0.577). The AULCSF of Grade II (1.08 ± 0.29, P = 0.026) and III group (0.83 ± 0.32) was significantly lower than that of the normal group (1.21 ± 0.05 , P = 0.023). Postoperatively, the degree of astigmatism, the NEI VFQ-25, and the contrast sensitivity showed obvious improvement since the 1st month.

Conclusions : The optical quality and contrast sensitivity were damaged in Grade II and III pterygium patients, which correlated with the severity of pterygium and its induced astigmatism. Patients following surgery exhibited obvious improvement of visual quality since the 1st month, which provided a good reference clinically.

This abstract was presented at the 2019 ARVO Annual Meeting, held in Vancouver, Canada, April 28 - May 2, 2019.




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