D'Souza Sharon, Annavajjhala Sriram, Thakur Prashansa, Mullick Ritika, Tejal S J, Shetty Naren
Narayana Nethralaya Eye Hospital, Bengaluru, Karnataka, India.
Indian J Ophthalmol. 2020 Dec;68(12):2899-2902. doi: 10.4103/ijo.IJO_2629_20.
To evaluate the relation of the tear film on the quality of vision comparing parameters in normal patients to those having dry eye disease.
50 normal and 50 eyes with dry eye disease (DED) were included in the study. Patients were screened for dry eye with Schirmer's test, tear break up time, ocular surface staining, and assessment of meibomian gland disease. Their quality of vision was assessed using the Optical quality analysis system (OQAS). The results of dry eye evaluation were correlated with the parameters on the OQAS especially the mean objective scatter index (OSI).
Patients with dry eye and unstable tear film were found to have a significantly worse quality of vision and optical scatter (P < 0.05). They were also noted to have fluctuation of vision between blinks.
Tear film optics can have an important bearing on the quality of vision and quality of life. A detailed assessment preoperatively will help improve surgical outcomes and patient satisfaction.
比较正常患者与干眼症患者泪膜相关参数，评估泪膜与视觉质量的关系。
本研究纳入50例正常受试者及50例干眼症（DED）患者。通过Schirmer试验、泪膜破裂时间、眼表染色及睑板腺疾病评估对患者进行干眼症筛查。使用光学质量分析系统（OQAS）评估其视觉质量。将干眼评估结果与OQAS参数尤其是平均客观散射指数（OSI）进行相关性分析。
发现干眼症患者及泪膜不稳定患者的视觉质量及光学散射明显较差（P < 0.05）。还注意到他们在眨眼间存在视力波动。
泪膜光学对视觉质量和生活质量有重要影响。术前进行详细评估将有助于改善手术效果和患者满意度。
