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Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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Biometry for Intra-Ocular Lens (IOL) Power Calculation ...
Biometry for Intra-Ocular Lens (IOL) Power Calculation ...

18/2/2021, · Axial length (AL) Axial length is defined as the distance from the anterior corneal surface to the retinal pigment epithelium. Can be performed using optical or ultrasound methods, which can further be done by direct contact or immersion. A combination of these measurements prevents errors in …

Normal range values of ocular axial length in adult ...
Normal range values of ocular axial length in adult ...

Results: The study showed that the average axial length was 23.09 mm ranging from 18.13 mm to 29.09 mm. It was longer in males (average 23.29), ranging from 20.31 mm to 28.48 mm and shorter in females (average 22.81), ranging from 18.31 mm to 29.09 mm.

High to Extreme Axial Length Myopia | Methods for ...
High to Extreme Axial Length Myopia | Methods for ...

Typically, ultrasound gives the anatomic axial length (corneal vertex to the most posterior portion of the macular region) rather than the refractive axial length (corneal vertex to foveal center) resulting in an IOL power that is too low. This is explained in detail on my website.

High Myopia and Cataract Surgery - EyeWiki
High Myopia and Cataract Surgery - EyeWiki

As ,axial length, increases, measurements may become less reliable. An estimated 70% of eyes with ,axial length, greater than 33.5 mm are estimated to have posterior staphylomata, or localized ectasia of the sclera, choroid, and retinal pigment epithelium.

Age Differences in Axial Length Corneal Curvature and ...
Age Differences in Axial Length Corneal Curvature and ...

Axial Length. The mean AL of the patients was 26.18 ± 3.11 mm (range, 20.85–34.46 mm) and included 174 eyes (80.9%) with a long AL (>23.5 mm). There were significant differences in AL among the age groups of MFS patients (; Table 2 ).

Axial Length Measurement: New Frontiers in Myopia ...
Axial Length Measurement: New Frontiers in Myopia ...

Axial length (AXL) has been well established as the critical measurement in examining the progression and control of myopia. It is accepted as the gold standard in understanding efficacy of myopia control treatments and, as a clinical measure, it could be up to 10 times more sensitive to detect myopia progression than refraction. 1 AXL also appears ...

Myopia Control - Measuring the Length of the Eye
Myopia Control - Measuring the Length of the Eye

However, ,axial length, measurement is a really useful disease risk indicator as it’s the elongated growth of the eyeball that makes someone more at risk of serious eye diseases later in life. An ,axial length, of greater than 26mm indicates much higher risk of developing conditions like glaucoma, retinal detachment, macular degeneration and cataracts and therefore these patients need to be more ...

The relationship between axial length age and intraocular ...
The relationship between axial length age and intraocular ...

The axial length was defined as the distance from the wave representing the anterior corneal surface to the wave representing the retina at the macula.

Estimation of axial length in clinical practice ...
Estimation of axial length in clinical practice ...

With the extreme range of axial lengths in adult humans ranging from 15 to 38mm (and with the mean ± two standard deviations of 21 to 26mm) 17, estimating axial length to 0.73mm is good, akin to estimating someone’s height to within an inch or two.

Calculating for Success: IOLs in Difficult Eyes
Calculating for Success: IOLs in Difficult Eyes

10/1/2017, · Short ,Axial Length, In eyes with short ,axial length, the biggest challenge to a good refractive outcome is that the actual implant position may be more anterior in the eye than the estimated effective lens position indicates, causing calculation of an overpowered lens and a myopic surprise.

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