The Mask-Facts and FAQs

Facts-The Mask

In this era of Corona panic and fear, there are a lot of confusions and misconceptions existing regarding the use of mask, not only amongst the laypersons but also among the health care providers.

On one hand, masks are not available for the risk group while on the other hand, who are not at risk, spending unnecessary money and energy to procure these masks.

This provokes me to write this blog, hope this would improve the understanding of the various types of commonly used masks and clarify the proper indications of use.

Masks-FAQs

Q1 ... What are the common types of masks

Ans...

1 Cloth mask

2 Surgical mask

Q2... What are the Respirators

Ans.

N- 95

N- 99

N- 100

are the respirators

Q3.. what is the difference between mask and respirator

Ans.

Mask has a loose fit, it doesn't seal nose and mouth snugly.

During respiration air moves along the edges of the mask, while respirator has a tight seal and most of the times' air passes only through its material after filtration.

Q4... Are all respirator masks are the same

Ans...

No, respirators are graded according to their filtration efficiency.

According to the used filter type

According to the type of materials used

And additional features

They are of different types.

Q5... what is the efficiency grading

Ans...

According to the efficiency of filtration these are usually graded as-

95, 99 and 100

Means these respirator masks are capable of traping 95%, 99% and 99.9% of particles, smaller up to the 0.3-micron size.

This grading can also be done as

P1 (FFP1) - 80%

P2 (FFP2) - 95%

P3 (FFP3) - 99.95%

Filtration efficiency.

Q.6.. what is the N, R or P meaning written over the mask

Ans...

N - not oil-proof

R- oil resistant

P- oil-proof

(Eg. N 95 is not oil proof).

Q7. Few respirator masks have the valve, what is that.

Ans.

That valve is nothing but a simple exhalation port with one-way valve mechanism, it reduces the effort of expiration, reduces heat inside the mask, dissipates humidity and reduces co2 the amount of from the dead space of mask.

Q.8. When to use surgical masks.

Ans... Surgical mask or procedure mask is the most common mask used by health workers.

It is not designed to protect the wearer from inhaling the air born bacteria and viruses.

It is used to block only large-particle droplets, splashes, sprays or splatter.

It also reduces the exposure of wearer's saliva and respiratory secretions to others. The surgical mask also reminds wearer not to touch their mouth/nose which could otherwise transfer virus/bacteria after having touched a contaminated surface.

Q9... what is the filtration capacity of surgical mask

Ans... It can vary between 10-90% according to the manufacturer.

Q..10.. how one can assure about the quality of the mask

Ans.

Mask should be certified by the

NIOSH (National institute for occupational safety and health)

Or

NPPTL (National personal protective technology laboratory)

Q.11...Is the cloth mask effective?

Ans.

The cloth is a woven material thus pore size is bigger than a surgical mask which is made up of non-woven polypropylene material thus cloth mask is less effective than the surgical mask in terms of filtration efficiency.

Q..12 ... Does the extra layer improve the efficacy of cloth mask

Ans. No, it's not advisable. Each extra layer adds only 2% of extra protection on the cost of comfort.

Q.13... Can surgical/cloth mask be used routinely

Ans.

Yes, these can be used routinely.

Few studies done on normal population concluded that the use of the simple mask can decrease the incidence of flu up to 75%.

Few east Asian countries following this practice of routine use of the mask.

Q.14. Can mask be reused?

Ans. -Cloth mask can be reused after washing

- The surgical mask should be discarded after a single use or after soiled

- Respirator mask should be discarded when the resistance of breathing gets increased or get soiled.

Viruses/bacterias can grow and flourish inside the reused mask.

Q..15.. what are the WHO recommendations for using masks?

Ans...

- For the normal population, any type of mask is not required, maintaining the social distance and hand hygiene are sufficient.

- The sick person should wear a surgical mask

- Any person who is taking care of a sick person should also wear the surgical mask.

- N 95 mask should be used by the person who is potential to get exposed to the respiratory secretions of the infected patient eg. During the Endotracheal intubation, CPR, Ventilation, Bronchoscopy and Tracheostomy etc.

The only additional thing to remember is that N95's recommended wear time is 4 hours.

Summery...

Please don't create panic and use this precious commodity judiciously.

Stay safe...

Dua e Mazhry

دعائے مظہریؔ

اے مالک روزِ جزا، اے خالقِ موت و حیات

اسلام پر دے زندگی، ایمان پر دینا وفات

اے ہمارے رب بھلائی دو جہاں کی ہو عطا

اور عذاب نار سے بخش دے ہم کو نجات

اے ہمارے رب کیا جو ظلم خود پہ معاف کر

رحم نہ فرمائے تو گر، ہے خسارے کی یہ بات

اے ہمارے رب دہانے کھول ہم پہ صبر کے

ہو مرحمت استقامت اور قدموں کو ثبات

فتح و نصرت سے نواز قوم پہ کفار کی

اور اپنے حکم سے پختہ کر دے ان کی مات

ان میں شامل کردے یا رب جو کریں قائم نماز

اور ہماری آل کو بھی رکھنا پابندِ صلوٰۃ

ہوں مغفرت کے مستحق، جس دن کہ ہو قائم حساب

ہم اور ہمارے والدین مومنین و مومنات

نامہءِ اعمال سے حذف کر دے سیِّاٰت

اور اپنے کرم سے بڑھا ہماری محصنات

درگذر کا، رحمتوں کا، مغفرت کا تذکرہ

وقتِ محشر جوش میں آجائیں بس یہ ہی صفات

اُنؐ کی شفاعت مظہریؔ کو حشر کے دن ہو عطا

جنؐ کا وجودِ ذی قدر وجہِ وجودِ کائنات

یکے از انتخابِ چشمِ بینا از پروفیسر ڈاکٹر ضیا ء المظہری

#UrduPoetry #shaeree #Dua #Mazhry #Chashmebeena #Covid19Prayers

Written By

Prof. Mazhry The Poet Ophthalmologist

Dua e Mazhry-1

Dua e Mazhry-2

COVID19 Concerns-online Audio-Video-Consultation

Covid-19 Impact

The impact of COVID-19 (Coronavirus) continues to evolve and we at Acuity Eye Centre are closely following guidance from the Department of Health, Royal College of Ophthalmologists and the American Academy of Ophthalmology.

Discontinuation of Elective Services at Acuity Eye Centre

In light of the rapid increase in the number of cases in Pakistan and the strong desire by the government to control the crisis by lockdown strategy, we have discontinued all elective operations and outpatient clinics from Monday 23rd March 2020 across all our facilities. We apologise to all who are inconvenienced and please understand that this is in the national interests. The situation is being reviewed daily by the AEC executive team and we shall make changes based on available advice and recommendations.

We shall continue to take phone calls, emails and communication through our regular channels.

Like yourselves, we are hopeful that with all measures being taken collectively the pandemic will come under better control and permit us to function more normally.

Availability of free online Audio Video Consultation for YOUR Eye Care Needs

We shall, however, be available for online audio and video consultation related to eye care.

You can contact us at:

https://eyeacuity.com/online-consultation-booking/

To know more about Corona Virus and Eye Health in Urdu click the following link:

https://eyeacuity.com/eye-health-and-corona-virus-information-in-urdu/

کوویڈ۔19 اثرات

کوویڈ ۱۹کے اثرات اب بھی ارتقاء پزیر ہیں اور ہم ایکیوٹی آئی سنٹر میں محکمہ صحت ، رائل کالج آف اوفتھلمولوجسٹ اور امریکن اکیڈمی آف چشمِ امراض کی رہنمائی کا قریب سے مشاہدہ کررہے ہیں۔

ایکیوٹی آئی سنٹر میں عمومی خدمات کا سلسلہ بند کرنا

پاکستان میں کیسوں کی تعداد میں تیزی سے اضافہ اور حکومت کی جانب سے لاک ڈاؤن حکمت عملی کے ذریعے بحران پر قابو پانے کی شدید خواہش کی روشنی میں ، ہم نے اپنی تمام سہولیات میں پیر 23 مارچ 2020 سے تمام انتخابی آپریشنز اور آؤٹ پیشنٹ کلینک بند کردیئے ہیں۔ تکلیف کے لئیے معذرت خواہ ہیں اور براہ کرم سمجھیں کہ یہ قومی مفادات میں ہے۔ اے ای سی کی ایگزیکٹو ٹیم کے ذریعہ صورتحال کا روزانہ جائزہ لیا جاتا ہے اور ہم دستیاب مشوروں اور سفارشات کی بنیاد پر تبدیلیاں کریں گے۔

ہم اپنے باقاعدہ چینلز کے ذریعے فون کالز ، ای میلز کے ذریعے اپنے مریضوں سے رابطہ کرتے رہیں گے۔

آپ کی طرح ، ہم بھی پر امید ہیں کہ اجتماعی طور پر اٹھائے جانے والے تمام اقدامات کے ساتھ وبائی مرض بہتر کنٹرول میں آجائے گا اور ہمیں حسبِ معمول کام کرنے کی اجازت دے گا۔

آپ کی آنکھوں کی دیکھ بھال کی ضروریات کے لئیے مفت آن لائن آڈیو ویڈیو مشاورت کی دستیابی

تاہم ہم آنکھوں کی دیکھ بھال سے متعلق آن لائن آڈیو اور ویڈیو مشاورت کے لئیے دستیاب ہوں گے۔

آپ ہم سے رابطہ کرسکتے ہیں:

https://eyeacuity.com/online-consultation- booking/

اردو میں کورونا وائرس اور آنکھوں کی صحت کے بارے میں مزید جاننے کے لئے درج ذیل لنک پر کلک کریں۔

https://eyeacuity.com/eye-health-and-corona-virus-information-in-urdu/

Khyber EyeCon 2020

Khyber Eyecon 2020 Professor Zia Ul Mazhry's Lectures

1-Strengths and limitations of Angio OCT

OCTA-AngioOCT-Principles and Interpretation-Strength and limitations by Professor Mazhry Khyber Eye-Con 2020 Peshawar OCT-Angiography (OCT-A) is a non-invasive imaging technique of the retinal and choroidal vasculature and microvasculature. OCT-A uses the principle of “motion contrast” for the detection of blood flow.

2-How to make a good scientific surgical video?

All surgeons should have a fair amount of working knowledge with respect to computers and their effective usage in day to day surgical practice. Following aspects will be presented and discussed in this talk:

• Step-1-Capturing / Recording
• Step-2-Video Editing

3-Management of traumatic and Marphanoid subluxations

Management of traumatic and Marphanoid subluxations using tension rings, hooks and haptic externalization and fixation techniques.

4-Management of late IOL Bag Complex dislocation in Pseudoexfoliation Syndrome

Management of late IOL Bag Complex dislocation secondary to Pseudoexfoliation Syndrome and trauma.

Two video clips are presented in this Video:

• 1-Acrysof Multipiece IOL Bag Complex in situ suture assisted repositioning
• 2-Rayner Cflex Traumatic IOL Bag Complex in situ suture assisted repositioning

5-Strengths and limitations of different FemtoLasik Platforms

Strengths and limitations of different FemtoLasik Platforms

• 1-Zeimer LDV Schwind Amaris 7000
• 2-Wavelight Alcon Fs 200
• 3-Zeiss Visumax Mel 80

6-Experience with Lucidid 124M EDOF IOLs

Experience with Lucidid 124M EDOF IOLs

To evaluate the Lucidis 124M EDOF IOL for safety and post-op results in terms of intraoperative behavior, improvement in the quality of vision and postoperative complication.

7-Kyber EyeCon Premium IOL Practice 2020

Kyber Eye-Con Premium IOL Practice 2020

0%0%0%0%0%0%0%0%0%0%The word premium IOLs was coined with the introduction of Aspheric foldable IOLs Cataract Surgery has evolved into refractive surgery overtime Multifocal and accommodating lenses are dramatically changing the way all eye doctors practice refractive surgery

Combing Premium IOL Practice 2020 with the economy is discussed in this talk.

Acuity Eye Center Diagnostic Facilities

Acuity Eye Centre Lahore Pakistan offers the facilities Like OCT, OCT Angiography, Visual Field, Digital Fundus Photograph, IOL Master, Hess Chart Test.

AEC Diagnostics

The following tests will be done in order to diagnose your eye problem:

Optical Coherence Tomography (OCT) ( آپٹیکل کوہرنس ٹوموگرافی (او سی ٹی

Anterior segment optical coherence tomography (AS-OCT) was recently developed and has become a crucial tool in clinical practice. AS-OCT is a non-contact imaging device that provides a detailed structure of the anterior part of the eyes.

Clinical Applications of Anterior Segment
Optical Coherence Tomography

AS-OCT can be widely applicable in various clinical diseases, including tear meniscus evaluation, ocular-surface disease, corneal dystrophies, and stromal diseases, tissue change analysis after cataract and glaucoma surgery, and angle assessment. This non-contact-type technology with a high resolution and high reproducibility provides comprehensive and quantitative information.

OCT Angiography

Angio Scan

OCT Angiography is one of the newest Frontier and future for the progressive technology of Imaging in diagnostic Eye Care.
Optical Coherence Tomography Angiography (OCTA) offers three-dimensional (3-d) imaging of the anterior segment, retina, and optic nerve head (similar to a C T- Scan test of the eye) permitting early analysis and timely management of eye illnesses.

Uses of OCT Angio:

Used to diagnose and manage retinal diseases like:
• diabetic retinopathy
• age-related macular degeneration (ARMD)
• artery and retinal vein occlusions (BRVO)
• glaucoma

Benefits over FFA:

• A high-velocity tool- produces snapshots in 10-15 seconds; FFA takes over 10-15 mins
• Non-invasive; FFA needs injections
• No dye injected, as a substitute uses motion assessment. hence no leakage, staining and other side results which include nausea and severe hypersensitive reactions (anaphylaxis)
• Can collect exceptional test sizes inside the macula and the optic disc in about three seconds
• Can test the other eye in the same sitting, in contrast to FFA, that’s one eye in keeping with sitting
• provides accurate length and localization. FFA results are enormously variable and frequently obscured by way of subjective interpretation by doctors.
• Visualizes both the retinal and choroidal vasculature
• may be used for habitual screening examinations for early analysis of vascular abnormalities, and for ordinary observe- follow up examinations to evaluate the efficacy of treatments inclusive of intravitreal injections.

Digital Perimetry Test

Humphery Visual Field Test

Visual Field

Acuity Eye center offers customized Visual field assessment Facilities. This test is especially useful and highly sensitive for certain glaucoma and neurological disorders.

The Humphrey visual field is a diagnostic test to measure visual fields or perimetry. The Humphrey visual field test measures the entire area of peripheral vision that can be seen while the eye is focused on a central point.

If you have been diagnosed with glaucoma, chances are high that, you may have taken many fields of vision tests.

This test helps your doctor discover and monitor glaucoma. Usually, the visual field test is taken once a year, however, looking at the severity of your glaucoma, your doctor might plan to check your field of vision more often.

A visual test maps out what your world feels like to you. It measures the realm of vision, or how wide of an area your eye will see. eye disease is commonly known as “The Thief of Sight” because it always could be a painless process that largely affects the peripheral, or side vision, first.

The field of vision shows changes that don’t seem to be noticed by the patient until the harm is severe. different diseases, like cataracts, stroke, macular degeneration, and diabetes, may also influence the visual field. Your doctor can take these possible effects on your examination once deciphering the results.

Types of the field of vision Test:
There are different types of visual field tests. The one most ordinarily employed is that the Humphrey visual field, that consists of a middle fixation light and blinking test lights in your side vision

It is vital when taking this test that you just consider the fixation light within the center and press the button once the blinking test light is seen together with your side vision. If you move your eyes to follow or search for the blinking lights, it decreases the dependability of the test and therefore the ability of your doctor to observe your illness. Areas that seem grey or black on the test results reflect areas in your vision that are blurred or missing. If your glaucoma remains uncontrolled, these areas can get darker and bigger.

Another kind of visual field take a look at is the Goldmann field of vision. This test is finished with a moving target controlled by a trained technician.

Monitoring Progress Your doctor will tailor the sort of test to best monitor your illness and change treatment fittingly. If your field of vision is worsening, it may mean that your pressures are too high and more treatment is critical to lowering your eye pressure.

It is vital to get a visual test as often as is usually recommended by your ophthalmologist, so as to observe progress and preserve vision.

Biometry

It is the process of measuring the power of the cornea (keratometry) and the length of the eye and using this data to determine the ideal intraocular lens power. If this calculation is not performed, or if it is inaccurate, then patients may be left with a significant refractive error.

This is a test to measure the shape and size of the eye. The goal of this test is to calculate the power of the intraocular lens (IOL) implants required for cataract and refractive surgery. Biometry can take place by using either optical coherence interferometry or ultrasound technology.

IOL Master

IOL Master

A non-contact optical device that measures the distance from the corneal vertex to the retinal pigment epithelium by partial coherence interferometry, the IOL Master is consistently accurate to within ±0.02 mm or better. The IOL Master is the first such device to be widely used in clinical ophthalmology.

An intraocular lens (IOL) is a lens implanted in the eye as part of a treatment for cataracts or myopia. The most common type of IOL is the pseudophakic IOL. These are implanted during cataract surgery, after the cloudy eye's natural lens has been removed.

IOL Master is a noncontact instrument designed to provide key information necessary for IOL power calculations: It measures axial length, anterior chamber depth, and white-to-white, and performs keratometry at a diameter of 2.5 mm.

Digital Fundus Photograph

Digital Fundus Photograph

Fundus photography involves photographing the rear of an eye; also known as the fundus. ... The main structures that can be visualized on a fundus photo are the central and peripheral retina, optic disc and macula.

Role of Handheld devices in eye examination of Children

Handheld devices for children's Eye Examination

Acuity eye center Lahore gives due attention and importance to proper eye examination of your child. The handheld slit lamp is used to examine the child in a cot or mother's lap. The recently installed Japanese Retinomax Handheld Auto Refractor Keratometer is considered to be one of the best and the most accurate instrument to measure Refractive errors and corneal power in Children. The beauty with these states of handheld devices is that the patient" eyes may examine in sitting, standing and lying positions even in mother" lap.

Contact Our Team:

If you are looking for any of below services, please fill the form below, one of our team members will get in to provide you with full facilitation:

1- Comprehensive Primary Eye Exam/ Consultation

Consultation ::: Adult Eye Examination and Consultation
Consultation ::: Children Eye Examination Refraction Consultation
Consultation ::: Infant Eye Examination Refraction Consultation
2-Secondary Follow up Eye Examination and Consultations

Followup ::: Examination under Sedation for Kids (After Initial Consultation)
Followup ::: Dilated Fundus Examination(DFE)
Followup ::: Cycloplegic Refraction and DFE
3-Diagnostic Eye Test

Diagnostic ::: OCT
Diagnostic ::: Angio OCT
Diagnostic ::: Anterior Segment OCT
Diagnostic ::: Pachymetry
Diagnostic ::: Perimetry/Visual Fields
Diagnostic ::: Hess Chart/Digital Squint Assessment/Digital Diplopia Test
Diagnostic ::: Digital Colour vision test

Urdu Ghazal Ham Nashin-AIMC-Reunion-2020

Reunion AIMC Class 1990

Alhumdulillah 30th Reunion of AIMC Class 1990 successfully with excellent attendance in all collective events, despite all odds and current changing national and international circumstances.

We are truly grateful for the core of my heart to all of the classmates to spare time from their busy schedules to make this event a success.

We are especially thankful to all friends who traveled from abroad in current circumstances, bearing the expenses and taking initiative against all odds due to coronavirus.

A special thanks to Major Sb for managing Food street Dinner and Toni for the managing formal Lunch at the eleventh hour.

We miss all those friends who were unable to make it due to different reasons.

IA will make a new plan soon as per their availability and visit Pakistan.

Stay blessed with health and happiness always

ڈاکٹر ضیاء المظہری کی نوائے وقت کے ادبی صفحہ میں ۱۴ مارچ ۲۰۲۰ کو شائع ہونے والی غزل کا تراشہ

خوب سے ہے خوب تر وہ اور بہتر بہتریں سے

ہم نشینی ہے ہماری ایک پری رخ مہ جبیں سے

مسکرائے برسے خوشبو پھول جھڑتے ہیں جو بولے

غنچہ ھائے نیم وا ہونٹ اس کے احمریں سے

تنگ دامانی میں بھی خوب آسانی میں بھی

زلف سے مہکے شبستاں صبح روشن ہو جبیں سے

خارزارِ زندگی میں جب سے تھاما اس کا ہاتھ

سہل سے لگنے لگے جو راستے تھے آتشیں سے

دل شکستہ سا کبھی جب لوٹ کے آتا ہوں میں

حوصلہ دیتے ہیں اس کے بول میٹھے انگبیں سے

دنیا کا سب سے بہتریں سرمایہ مجھ کو مل گیا

مثلِ جنت ہو حیات ایسے ہمدم ہم نشیں سے

مظہرِ عرفانِ حق ہے عارفہ ءِ مظہریؔ

عشق احمد مجتبٰی سے خوف رب العالمیں سے

سعدومعاذو ھاجرہ عبداللہ ابنِ مظہری

گلستانِ عارفہ و مظہری کے گل حسیں سے

‹

›

16-Phaco Cataract Course-Basics and Advanced-What out colleagues-peers a...

Experience with Lucidid 124M EDOF IOLs

Strengths and limitations of different FemtoLasik Platforms

Management of late IOL Bag Complex dislocation in Pseudoexfoliation Synd...

Management of traumatic and Marphanoid subluxations

Management of traumatic and Marphanoid subluxations

Video Presentation-1-Capturing and Trimming

Video Presentation-1-Capturing and Trimming