Study Efron Grading Scale flashcards from Fouche du Raan's class online, or in Brainscape's iPhone or Android app. ✓ Learn faster with spaced repetition. The benefits of clinical grading scales include accuracy and consistency in . per cent of respondents used a grading scale, the original Efron ( per. Examples of these include the Brien Holden Vision Institute. (formerly CCLRU) and the Efron Grading Scales. The former were first published in and use.


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In order to improve and standardise anterior eye evaluations between practitioners, subjective grading scales were first popularised back in the mids. Benefits of Grading Efron grading scales The benefits of clinical grading scales include accuracy and consistency in clinical record keeping leading to more meaningful communication of clinical cases to fellow efron grading scales professionals.

Clinical grading scales also offer practitioners the most effective way of monitoring the health of an eye wearing a contact lens. They allow for an accurate means of detecting change that efron grading scales occur during lens use and provide the practitioner with the necessary information to intervene to minimise the risk of a chronic adverse reaction to the contact lens.

Table 1 summarises efron grading scales benefits. Ideally, prior to contact lens wear, the baseline data for a range of clinical variables should be collected and then be continually monitored throughout the course of the patients wearing experience. The latter consists of a series of artist illustrated depictions of 16 different conditions, while the former comprises photographs of 6 conditions, two of which are presented in multiple manifestations.

Efron scale The Efron grading scales photographic scales have been criticised for the lack of perfect homogeneity between images representing the same condition, either in terms of different illumination conditions or variability of size of the area under display.

Whilst Efron overcomes these difficulties by encouraging artistic clarity and licence so as to emphasise and isolate the condition that is being evaluated, it is considered by some a departure from the real life situation in as much as different conditions feed and depend on each other and, therefore, occur simultaneously and should appear as such in a single image.

Both clinical grading scales efron grading scales been published in prominent textbooks and widely distributed around the world, free of charge, by several major contact lens companies.

Indeed it is estimated that overcopies of these scales — usually in the form of laminated A4 reference cards but also in efron grading scales poster format — have been provided to practitioners in the past 20 years.

More recently, other clinical efron grading scales scales have been introduced see Figure 3 Figure 3: Examples of more recently introduced grading scales Repeatability Researchers have examined the repeatability of discrete and continuous anterior segment grading.


They conclude that grading scales that are too coarse generally allow less sensitivity in the detection of meaningful clinical changes.

Practitioners often overcome this limitation by adopting half-point scales, or by assigning plus and minus symbols next to an integer efron grading scales. They also believe that increasing the number of intervals to make the grading scale finer may reduce the efron grading scales of concordance between repeated measurements of the same clinical event.

Efron Grading Scale Flashcards by Fouche du Raan | Brainscape

Finer scales have the advantage of being capable of recording clinical change more sensitively. By grading to efron grading scales places that are representative of points in between two successive integer points on the scale, 1. However, there is a limit to such interpolation; 0.


The variability of grading scores between practitioners can be wide and they generally tend to form clusters around whole numbers. Evidence suggests that concordance tends to improve with training or practice. Another concern with existing clinical grading scales is that they do not cover all possible clinical appearances, particularly at the severe end of the scale, and efron grading scales they may not be linear.


Objective analysis efron grading scales digital images provides an attractive alternative to the current subjective nature of practitioner grading, and this has the potential to be more sensitive. The subjective judgement that a practitioner makes at the slit lamp is however a complex one to mimic objectively.

C42682: Clinical grading scales

The objective grading of ocular redness involves judgement of both the hue and vessel size, relative to the area under question. This is difficult for efron grading scales to achieve accurately. Approaches to this challenge are still emerging and further developments in this area are anticipated.