| Topic | Details |
| Purpose / Target Users | The Handheld Bagolini Striated Lens Set is a diagnostic tool used in binocular vision assessment to evaluate retinal correspondence, suppression, and binocular sensory status in patients with eye alignment disorders. The finely striated lenses create light streaks when viewing a point light source, allowing clinicians to assess normal retinal correspondence (NRC), anomalous retinal correspondence (ARC), or suppression. The tool is primarily used by optometrists, ophthalmologists, and orthoptists during binocular vision examinations. |
| Optotypes / Symbols | The Bagolini lenses do not contain optotypes such as letters or numbers. Instead, the finely striated lens surfaces produce linear light streaks when the patient views a point light source, enabling clinicians to analyze binocular visual responses. |
| Scaling / Spacing | The lenses contain very fine parallel striations etched or molded into the lens surface. These striations produce light streaks perpendicular to the orientation of the grooves. The exact spacing of the striations is optimized to create clear streaks while maintaining minimal disruption of natural binocular viewing conditions. |
| Range of Acuity / Line Sizes | Not applicable. The Bagolini Striated Lens test is not designed for measuring visual acuity or line sizes. It is used for qualitative evaluation of binocular sensory status and retinal correspondence. |
| Testing Distance | The Bagolini test can be performed at both near and distance fixation, depending on clinical requirements. It is commonly conducted using a penlight or fixation light source positioned in front of the patient during binocular vision assessment. |
| Physical Size & Portability | The handheld frame set typically measures approximately 6.5 × 2 × 0.25 inches, making it compact and portable. The design allows clinicians to easily position the lenses in front of the patient’s eyes during examination. |
| Mounting / Display Features | The lenses are mounted in handheld frames with temples, allowing the clinician to position them comfortably in front of the patient’s eyes. The device is used in conjunction with a penlight or fixation light, rather than mounted on a chart or stand. |
| Included Accessories / Extras | The standard set typically includes the handheld Bagolini striated lens frame with lenses, a penlight for light fixation testing, and a cleaning cloth. Some penlights may also include a pupil gauge or pupilometer scale for quick pupil size estimation. |
| Durability / Material Qualities | The lenses are typically manufactured from precision optical plastic with finely molded striations, designed to maintain clear streak formation. Frames are generally made from durable plastic or lightweight materials suitable for repeated clinical use. |
| Usability / Marker of Quality | A high-quality Bagolini lens set provides clear and well-defined light streaks with minimal optical distortion, allowing accurate evaluation of retinal correspondence. Quality indicators include precise striation patterns, comfortable handheld frames, reliable penlight illumination, and durable lens construction, making it a standard diagnostic tool in binocular vision assessment. |
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