Binocular single vision (BSV) is the ability to use both eyes together to achieve a single fused percept, even in the presence of disparity of the image seen by each eye. It is divided into five grades: simultaneous perception, superimposition, sensory fusion, motor fusion, and stereopsis.
The current study aimed to examine the contribution that motor fusion and stereoacuity make to visuomotor task performance, while addressing some of these confounding factors. Individual differences in task performance and adaptation to BSV deficits were minimized using a repeated measures design, in which participants with normal BSV and no amblyopia or strabismus had their fine visuomotor task performance assessed as their BSV was progressively degraded.
Transposition is very important for optometrist who deals with retinoscopy and dispensing with this power point presentation you can easily transpose the lens power.
Binocular single vision (BSV) is the ability to use both eyes together to achieve a single fused percept, even in the presence of disparity of the image seen by each eye. It is divided into five grades: simultaneous perception, superimposition, sensory fusion, motor fusion, and stereopsis.
The current study aimed to examine the contribution that motor fusion and stereoacuity make to visuomotor task performance, while addressing some of these confounding factors. Individual differences in task performance and adaptation to BSV deficits were minimized using a repeated measures design, in which participants with normal BSV and no amblyopia or strabismus had their fine visuomotor task performance assessed as their BSV was progressively degraded.
Transposition is very important for optometrist who deals with retinoscopy and dispensing with this power point presentation you can easily transpose the lens power.
Real subjective refraction in astigmatismBipin Koirala
hope it will be beneficial for the students in eye care system . please like it and share it if you think it is beneficial for your studies. It will motivate me to upload more slides ..
Presbyopia/ Methods of Presbyopic Addition Determination (healthkura.com)Bikash Sapkota
DIRECT DOWNLOAD LINK ❤❤https://healthkura.com/presbyopia-near-addition/❤❤
Dear viewers Check Out my other piece of works at ❤❤❤ https://healthkura.com ❤❤❤
Presbyopia and techniques of measurement
A fantastic presentation in the topic "Presbyopia and techniques of measurement"
A detailed information about presbyopia, techniques of presbyopic add determination and different correction methods.
Informative slide presentation on presbyopia for ophthalmology residents, ophthalmologists, optometrists, ophthalmic assistants, ophthalmic technicians, ophthalmic nurses, medical students, medical professors, teaching guides.
Presentation Contents:
--Introduction to presbyopia
-Types of presbyopia
-Risk factors
-Symptoms and signs
-Refractive error and presbyopia
-Methods of determining near add.
-Management of presbyopia
In a nutshell..
- The evaluation and management of presbyopia are important because significant functional deficits can occur when the condition is left untreated
- Undercorrected or uncorrected presbyopia can cause significant visual disability and have a negative impact on the pt.'s quality of life
- Finally, every tentative addition should be adjusted according to the particular needs of the patient
For Further Reading:
-Clinical Procedures in Optometry by J.D. Bartlett, J.B. Eskridge, J.F. Amos
-Primary Care Optometry by Theodere Grosvenor
-Borish’s Clinical Refraction by W.J. Benjamin
-Clinical Procedures for Ocular examination by Carlson et al
-American Academy of Ophthalmology
-Optometric Clinical Practice Guideline by American Optometric Association
-Internet
Follow me to get in touch with optometric and ophthalmic updates.
These lectures has prepared for postgraduate student (Ophthalmology) according to the curriculum of Bangladesh College of Physician and Surgeons (BCPS) and Bangabondhu Sheikh Mujib Medical University (BSMMU) Bangladesh
Negative Relative Accommodation and Positive Relative.pptxBABLI SHARMA
EQUIPMENT NEEDED
Phoropter
Near point card with vertical line of 20/30 letters
SETUP
1. Seat the patient comfortably behind the phoropter with the patient’s distance correction in place.
2. Place the near point card at a 40-cm distance from the patient, with good illumination.
PROCEDURE
1. Instruct the patient to look at the target and keep it clear and single.
2. Instructions: “I will be changing the lenses in front of your eyes. Try to keep the line of letters clear and
single for as long as you can. Tell me as soon as the letters become blurry
3. Add plus lenses in +0.25 D increments until the patient reports the first sustained blur or diplopia.
4. Record the amount of plus added above the distance prescription as the NRA.
5. Remove the plus lenses and return to the distance prescription.
6. Add minus lenses in −0.25 D increments until the patient reports the first sustained blur or diplopia.
7. Record the amount of minus added above the distance prescription as the PRA.
8. Stop the PRA test when you reach −2.50 D above the distance prescription.
IMPORTANT POINTS
1. Stress the importance of reporting both blur and diplopia.
2. Discontinue the PRA at −2.50 D.
Real subjective refraction in astigmatismBipin Koirala
hope it will be beneficial for the students in eye care system . please like it and share it if you think it is beneficial for your studies. It will motivate me to upload more slides ..
Presbyopia/ Methods of Presbyopic Addition Determination (healthkura.com)Bikash Sapkota
DIRECT DOWNLOAD LINK ❤❤https://healthkura.com/presbyopia-near-addition/❤❤
Dear viewers Check Out my other piece of works at ❤❤❤ https://healthkura.com ❤❤❤
Presbyopia and techniques of measurement
A fantastic presentation in the topic "Presbyopia and techniques of measurement"
A detailed information about presbyopia, techniques of presbyopic add determination and different correction methods.
Informative slide presentation on presbyopia for ophthalmology residents, ophthalmologists, optometrists, ophthalmic assistants, ophthalmic technicians, ophthalmic nurses, medical students, medical professors, teaching guides.
Presentation Contents:
--Introduction to presbyopia
-Types of presbyopia
-Risk factors
-Symptoms and signs
-Refractive error and presbyopia
-Methods of determining near add.
-Management of presbyopia
In a nutshell..
- The evaluation and management of presbyopia are important because significant functional deficits can occur when the condition is left untreated
- Undercorrected or uncorrected presbyopia can cause significant visual disability and have a negative impact on the pt.'s quality of life
- Finally, every tentative addition should be adjusted according to the particular needs of the patient
For Further Reading:
-Clinical Procedures in Optometry by J.D. Bartlett, J.B. Eskridge, J.F. Amos
-Primary Care Optometry by Theodere Grosvenor
-Borish’s Clinical Refraction by W.J. Benjamin
-Clinical Procedures for Ocular examination by Carlson et al
-American Academy of Ophthalmology
-Optometric Clinical Practice Guideline by American Optometric Association
-Internet
Follow me to get in touch with optometric and ophthalmic updates.
These lectures has prepared for postgraduate student (Ophthalmology) according to the curriculum of Bangladesh College of Physician and Surgeons (BCPS) and Bangabondhu Sheikh Mujib Medical University (BSMMU) Bangladesh
Negative Relative Accommodation and Positive Relative.pptxBABLI SHARMA
EQUIPMENT NEEDED
Phoropter
Near point card with vertical line of 20/30 letters
SETUP
1. Seat the patient comfortably behind the phoropter with the patient’s distance correction in place.
2. Place the near point card at a 40-cm distance from the patient, with good illumination.
PROCEDURE
1. Instruct the patient to look at the target and keep it clear and single.
2. Instructions: “I will be changing the lenses in front of your eyes. Try to keep the line of letters clear and
single for as long as you can. Tell me as soon as the letters become blurry
3. Add plus lenses in +0.25 D increments until the patient reports the first sustained blur or diplopia.
4. Record the amount of plus added above the distance prescription as the NRA.
5. Remove the plus lenses and return to the distance prescription.
6. Add minus lenses in −0.25 D increments until the patient reports the first sustained blur or diplopia.
7. Record the amount of minus added above the distance prescription as the PRA.
8. Stop the PRA test when you reach −2.50 D above the distance prescription.
IMPORTANT POINTS
1. Stress the importance of reporting both blur and diplopia.
2. Discontinue the PRA at −2.50 D.
CHAPTER 1 SEMESTER V PREVENTIVE-PEDIATRICS.pdfSachin Sharma
This content provides an overview of preventive pediatrics. It defines preventive pediatrics as preventing disease and promoting children's physical, mental, and social well-being to achieve positive health. It discusses antenatal, postnatal, and social preventive pediatrics. It also covers various child health programs like immunization, breastfeeding, ICDS, and the roles of organizations like WHO, UNICEF, and nurses in preventive pediatrics.
LGBTQ+ Adults: Unique Opportunities and Inclusive Approaches to CareVITASAuthor
This webinar helps clinicians understand the unique healthcare needs of the LGBTQ+ community, primarily in relation to end-of-life care. Topics include social and cultural background and challenges, healthcare disparities, advanced care planning, and strategies for reaching the community and improving quality of care.
ICH Guidelines for Pharmacovigilance.pdfNEHA GUPTA
The "ICH Guidelines for Pharmacovigilance" PDF provides a comprehensive overview of the International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH) guidelines related to pharmacovigilance. These guidelines aim to ensure that drugs are safe and effective for patients by monitoring and assessing adverse effects, ensuring proper reporting systems, and improving risk management practices. The document is essential for professionals in the pharmaceutical industry, regulatory authorities, and healthcare providers, offering detailed procedures and standards for pharmacovigilance activities to enhance drug safety and protect public health.
COVID-19 PCR tests remain a critical component of safe and responsible travel in 2024. They ensure compliance with international travel regulations, help detect and control the spread of new variants, protect vulnerable populations, and provide peace of mind. As we continue to navigate the complexities of global travel during the pandemic, PCR testing stands as a key measure to keep everyone safe and healthy. Whether you are planning a business trip, a family vacation, or an international adventure, incorporating PCR testing into your travel plans is a prudent and necessary step. Visit us at https://www.globaltravelclinics.com/
The Importance of Community Nursing Care.pdfAD Healthcare
NDIS and Community 24/7 Nursing Care is a specific type of support that may be provided under the NDIS for individuals with complex medical needs who require ongoing nursing care in a community setting, such as their home or a supported accommodation facility.
India Diagnostic Labs Market: Dynamics, Key Players, and Industry Projections...Kumar Satyam
According to the TechSci Research report titled “India Diagnostic Labs Market Industry Size, Share, Trends, Competition, Opportunity, and Forecast, 2019-2029,” the India Diagnostic Labs Market was valued at USD 16,471.21 million in 2023 and is projected to grow at an impressive compound annual growth rate (CAGR) of 11.55% through 2029. This significant growth can be attributed to various factors, including collaborations and partnerships among leading companies, the expansion of diagnostic chains, and increasing accessibility to diagnostic services across the country. This comprehensive report delves into the market dynamics, recent trends, drivers, competitive landscape, and benefits of the research report, providing a detailed analysis of the India Diagnostic Labs Market.
Collaborations and Partnerships
Collaborations and partnerships among leading companies play a pivotal role in driving the growth of the India Diagnostic Labs Market. These strategic alliances allow companies to merge their expertise, strengthen their market positions, and offer innovative solutions. By combining resources, companies can enhance their research and development capabilities, expand their product portfolios, and improve their distribution networks. These collaborations also facilitate the sharing of technological advancements and best practices, contributing to the overall growth of the market.
Expansion of Diagnostic Chains
The expansion of diagnostic chains is a driving force behind the growing demand for diagnostic lab services. Diagnostic chains often establish multiple laboratories and diagnostic centers in various cities and regions, including urban and rural areas. This expanded network makes diagnostic services more accessible to a larger portion of the population, addressing healthcare disparities and reaching underserved populations. The presence of diagnostic chain facilities in multiple locations within a city or region provides convenience for patients, reducing travel time and effort. A broader network of labs often leads to reduced waiting times for appointments and sample collection, ensuring that patients receive timely and efficient diagnostic services.
Rising Prevalence of Chronic Diseases
The increasing prevalence of chronic diseases is a significant driver for the demand for diagnostic lab services. Chronic conditions such as diabetes, cardiovascular diseases, and cancer require regular monitoring and diagnostic testing for effective management. The rise in chronic diseases necessitates the use of advanced diagnostic tools and technologies, driving the growth of the diagnostic labs market. Additionally, early diagnosis and timely intervention are crucial for managing chronic diseases, further boosting the demand for diagnostic lab services.
2. Introduction
It is an age related visual impairment results from the
gradual decrease in accommodation expected to age.
Types:-
Incipient presbyopia:- It represent the earliest stage,
patient's history suggest need for reading addition but the patient
perform well on testing
functional presbyopia:- require at least 1.00D in order to
read the N8 optotype at a distance of 40cm.
3. Absolute presbyopia:- As a result of continuous gradual
decline in accommodation, functional presbyopia progress to
absolute presbyopia.
premature presbyopia:- accommodative ability becomes
insufficient for patient's usual near vision tasks at an earlier age
than expected.
Nocturnal presbyopia:- near vision difficulties in dim light.
Increased pupil size is responsible for reduction in range of clear
vision in dim light.
4.
5. Signs and symptoms
Having difficulty reading small print
Delay in focusing at near
increased working distance need for reading
headache or eyestrain after reading or doing close work
need brighter light when reading or doing close work
6. Diagnosis of Presbyopia
1. Patient History
Expected Values of Accommodation (Diopters)
10 15.5
20 12.5
30 9.5
40 6.5
50 3.5
60 0.5
70 0.25
7. Diagnosis of Presbyopia
2. Ocular Examination
a) Visual Acuity
b) Refraction
c) Binocular Vision and Accommodation
i. Plus lens to clear near vision
ii. Amplitude of accommodation (AA)
8. Management of Presbyopia
A. Optical Correction with Spectacle Lenses
i. Single vision lenses
ii. Bifocal lenses
iii. Trifocal lenses
iv. Progressive addition lenses
v. Occupational lenses
9. Management of Presbyopia
B. Optical Correction with Contact Lenses
i. Monovision lenses
ii. Bifocal contact lenses
iii. Alternating vision bifocal contact lenses
iv. Simultaneous vision contact lenses
v. Combination of Contact and Spectacle Lenses
10. Management of Presbyopia
C. Refractive Surgery
i. Multifocal intraocular lens implant
ii. Accommodating intraocular lens implants
iii. Small-diameter corneal inlays
iv. Modified corneal surface techniques to create multifocal
corneas
v. Conductive keratoplasty (CK)
vi. Moldable intraocular lens implants (IOLs) to develop
pseudophakic accommodation.
11. Predicted Near Add
AGE PREDICTED NEAR ADD
40 0
45 +1.00
48 +1.25
50 +1.50
52 +1.75
55 +2.00
60 +2.25
63 +2.50