allowance


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allowance

 [ah-low´ans]
something permitted or allowed.
recommended daily allowance term popularly used as a synonym for recommended dietary allowance.
recommended dietary allowance (RDA) the amount of nutrient and calorie intake per day considered necessary for maintenance of good health, calculated for males and females of various ages and recommended by the Food and Nutrition Board of the National Research Council. See Appendices 4 and 5. Popularly called recommended daily allowance.

al·low·ance

(a'low-antz),
1. Permission.
2. An allotted portion.

allowance

The allocation of a thing on a routine basis.

al·low·ance

(a'low-ans)
1. Permission.
2. An allotted portion.

retinoscope 

An instrument for determining objectively the refractive state of the eye. It consists of a light source, a condensing lens and a mirror. The mirror is either semi-transparent or has a hole through which the retinoscopist can view the patient's eye along the retinoscope's beam of light. A patch of light is formed on the patient's retina and by moving that patch in a given direction and observing the direction in which it appears to move after refraction by the patient's eye, the retinoscopist can determine whether the patient's retina is focused in front of, at, or behind the retinoscope's sight hole. If the light reflected from the patient's fundus (called the retinoscopic reflex or light reflex) and observed in the patient's pupil through the retinoscope moves in the same direction as the movement of the mirror (this is referred to as a with movement), the eye is hyperopic. If the reflex moves in the opposite direction to that of the mirror (against movement), the eye is myopic. Sometimes it is impossible to see a clear movement one way or the other but only a bipartite reflex, showing opposite movements in the two sectors of the pupils (this is called a split reflex or a scissors movement). The refractive error is determined by placing lenses of various powers in front of the patient's eye until no movement is seen, i.e. the whole pupil is either illuminated or dark and the image of the patient's retina is then conjugate with the plane of the retinoscope's sight hole. When this phenomenon occurs the neutral point has been reached. The neutral point is measured for each principal meridian of the eye if it is astigmatic. To arrive at the patient's error of refraction the dioptric power corresponding to the distance between patient and retinoscope (called the working distance) is subtracted from the total lens power used to obtain neutralization. The amount of dioptric power subtracted is called the allowance. (Fig. R13) Syn. skiascope. See retinoscopic band; chromoretinoscopy; fundus reflex; velonoskiascopy.
spot retinoscope A retinoscope that projects a circular beam of light upon the patient's retina.
streak retinoscope A retinoscope that projects into the patient's eye an oblong streak, which can be adjusted in width and rotated in various meridians. It is more efficient than the spot retinoscope in determining astigmatism.
Fig. R13 Optical principle of a retinoscope (O, observers eye; P, patients eye; M, semi-silvered mirror)enlarge picture
Fig. R13 Optical principle of a retinoscope (O, observer's eye; P, patient's eye; M, semi-silvered mirror)
References in periodicals archive ?
"If the motion is passed, I will personally write to the clerk of the assembly that the house allowance should not be included in my payslip,' Kiragu said.
President Pakistan Drugs Lawyers Forum (PDLF) Noor Muhammad Mahar had written a letter to the Prime Minister mentioning multifold salary and health professional allowance being awarded to RO employees of the DRAP.
The Insaf Doctor's Forum Chairman Dr Khawar was contacted on the matter, and informed that a summary has been shared with the finance department, and soon the doctors would get an allowance equal to that of doctors in Punjab.
While councillors do not receive a salary, unlike council officers, they are able to claim allowances and some expenses.
Such powers, the SRC argues, are vested in the commission.MPs started collecting the new allowance this week, with Protection House, where Parliament's accounts offices are located, registering an increase in the number of lawmakers streaming in to fill out the claim forms.
At the same time, the cost of living allowance of Rs.3, 250 being paid to the pensioners will be paid continuously.
A good Independent Financial Adviser can give you guidance on this and help you make the most of tax allowances that are available.
Based on the COA report, as of end 2018, the Napolcom had spent P8.23 million for the vitamin allowance of regular officials and employees, and another P856,000 for contract service and job order personnel.
Those in BS-16 and BS-20 and above have already been getting the allowance for the past many years.
Mr Molao, however, stated that only off-campus allowance was reduced while on-campus allowance had remained the same with students not being provided with meals by institutions continuing to receive P1 208 per month and those being provided with meals getting P150 per month to cater for toiletries.
COUNCILLORS have agreed to freeze their allowances for another year - despite opposition calls for a reduction.
Besides this, the bill suggests raise in yearly additional travelling allowance from Rs1,20,000 to Rs5lac, monthly house rent from Rs29,000 to Rs50,000 and utility allowance from Rs6000 to Rs20,000.

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