Attenuating Photostress and Glare Disability in Pseudophakic Patients through the Addition of a Short-Wave Absorbing Filter

Figure 1

Schematic of the optical system used to measure disability glare thresholds and photostress recovery time. A1-A2: apertures; BS: beam splitters; D1-D2: diffusers; EC: final focusing lens and eye cup for head positioning; FH: filter holder; G: grating and aperture for defining target; L1–L3: planoconvex achromatic lenses; M: mirror; PC: photocell; S1-S2: LED light sources.