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Fig. 6 | Eye and Vision

Fig. 6

From: A review of functional slit lamp biomicroscopy

Fig. 6

Comparison of microvascular network density (Dbox) among soft contact lens (CL) studies using the same imaging protocol. Chen et al. examined 16 NCL wearers and found a significantly elevated Dbox after 6 h of CL wear. Shi et al. examined 20 HCL wearers who removed their CLs for one night of sleep and found an elevated Dbox compared with 40 NCL wearers. In the Hu et al. study, a significantly higher Dbox was identified in 75 HCL wearers compared with 91 NCL wearers. The Dbox of HCL wearers while wearing CLs was significantly different from that when they were not wearing CLs and from that of NCL wearers after 6 h of CL wear. Overall, it appeared that wearing lenses caused elevated vessel density and a possible ceiling effect limited the evaluation within the modulated range [33]

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