| Objective: To investigate the accuracy and feasibility of using non-contact tonometer to measure intraocular pressure when wearing therapeutic corneal bandage lens for patients with corneal abnormality,so as to provide reference when meeting similar patients in clinical work.Methods: A total of 20 eyes(group A)of 16 pterygium patients treated in the First Affiliated Hospital of Guangxi Medical University from October 2019 to January 2021 and 27 eyes(group B)of 21 patients with keratopathy who needed to wear therapeutic corneal bandage lens were included in this study.All patients in group A wore A Bausch & Lomb corneal bandage lens for pure vision treatment on the day after surgery.Non-contact tonometer was used to measure intraocular pressure for three times before surgery,the first day after surgery and the seventh day after surgery,and the average values were taken.Group B wore Bausch & Lomb corneal bandage lens for pure vision treatment on the day of treatment.When the cornea of the patients recovered to the point where the naked intraocular pressure could be measured by using a non-contact tonometer,the intraocular pressure was measured by using a non-contact tonometer for 3times before and after the removal of the lens,and the average value was taken.After the measurement,the data were collated to analyze the influence of corneal bandage lens on the measurement of intraocular pressure with non-contact tonometer.Results:In group A,the IOP was 15.35±2.70 mm Hg before surgery,17.90±2.99 mm Hg after wearing glasses one day after surgery,17.20±2.17 mm Hg after wearing glasses one week after surgery,and15.60±1.93 mm Hg after wearing glasses one week after surgery.The intraocular pressure of wearing glasses one day and one week after surgery was higher than that of the naked eye before surgery,and the intraocular pressure of wearing glasses one day and one week after surgery was higher than that of the naked eye after removing glasses one week after surgery,with statistical significance(P<0.05).There was a significant positive correlation between the intraocular pressure(IOP)of wearing glasses and that of naked eyes after one week of lens removal(r=0.69,P<0.01).The intraocular pressure(IOP)of group B was17.04±4.00 mm Hg and 15.96±4.06 mm Hg before and after the endoscopic removal,respectively,and the IOP before and after the endoscopic removal was higher than that after the endoscopic removal,with statistical significance(P<0.05).There was a significant positive correlation between intraocular pressure and intraocular pressure(r=0.90,P<0.01).Conclusion:(1)Non-contact tonometer can still be used to measure intraocular pressure in patients with pterygium surgery and keratopathy after wearing therapeutic corneal bandage lens.The measured intraocular pressure of NCT was 1～3mm Hg higher than that of the naked eye,and there was a good correlation between intraocular pressure before and after wearing lens.(2)For patients wearing therapeutic corneal bandage lens,it is feasible to measure IOP without removing the lens before NCT,and its high estimation of naked IOP is within the clinically acceptable range,thus avoiding secondary injury of the cornea. |
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