バイオメトリー

バイオメトリー

Optical biometry

Comprehensive all-in-one solution for accurate IOL prediction

Optical Low Coherence Reflectometry

Precise measurement of the entire eye

In a single measurement scan using optical low coherence reflectometry (OLCR), the Lenstar 900 captures axial dimensions of the human eye’s optical structures on the patient’s visual axis. Besides highly precise measurements of the axial length (AL), it also provides central corneal thickness (CCT) with a reproducibility of approximately ±2 μm, anterior chamber depth (ACD), lens thickness (LT) and much more to meet the requirements of latest generation IOL calculation formulae.

角膜横径、瞳孔径測定

総合的なデータ

レンズスター900は、眼の高解像度カラー写真に基づいて、高度なIOL計算式で使用される信頼性の高い角膜横径の測定を提供します。さらに、カラー写真は、手術室での解剖学的ランドマークや向きの識別に使用できます。レンズスター 900には、周囲光条件での瞳孔径の測定も含まれます。これらは、プレミアムIOLに対する患者の適合性、およびレーザー屈折矯正処置のための有用な指標です。

データ検証

再現性

レンズスター900の各測定は自動的に数回繰り返されるため、非常に正確で高い再現性を示します。これにより、確実性と安心感が得られます。異常値や想定外の結果が発生した場合、ユーザーは生データを確認、除外、さらには再計算することができます。

強い混濁に対応可能なDCMモード(Dense Cataract Mode)

更に高いバイオメトリー精度の確保

強い混濁のある白内障では、正確な眼軸長の測定が困難になります。精度を保つためにレンズスター900はDCM（Dense Cataract Measurement）モードを提供します。DCMは、いかなる症例においても正確にIOL度数を予測します。

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Biometry dashboard

All biometry data at a glance

The comprehensive biometry dashboard allows comparison of data from the left and right eye for all parameters. These include axial biometry, keratometry, pupillometry, and white-to-white data. On this dashboard, unusual data sets are easily identified. In such cases more detailed views are available for powerful data review.

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Axial biometry scan

Management of difficult and rare cases

The A-scan view provides detailed insight into the measurement data. This enables identification of measurement errors related to the presence of contact lenses or previously implanted IOLs measured with the standard phakic measurement mode. In such cases, users have the flexibility to manually adjust gates. Additionally, it is possible to include or exclude data points as needed to enhance the overall data quality.

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Pupillometry

Examination of pupil centricity

This pupillometry screen offers a comprehensive overview of pupillometry measurements. It enables browsing through acquired images and recalculating the central position of the pupil. Like with the other views, it is possible to exclude measurement data.

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White-to-white

Close examination of image quality

The detailed white-to-white screen enables examination of high-quality color images of the eye including the sclera, limbus, iris, and pupil. This view assists in identification of artefacts caused by closed eyes or eyelashes that interfere with the measurement area and segmentation of the iris.