CHAPTER
ONE
INTRODUCTION
1.1
BACKGROUND OF THE STUDY
The discovery of the computer has to a
greater extent revolutionized most profession and their work performance.
Doctors, accountants, Architects, Bankers, Engineers, Flight Controllers cannot
work without the help of the computer. Recent studies have shown that computer
can be of great help in the diagnosing of several eye defects like short and
long sightedness. Artificial Intelligence elements like Artificial Neural
Networks, Fuzzy logic, Expert Systems, Genetic Algorithms, tend to emulate the
human brain when it comes to detecting defects in the human body. The
techniques used in this paper are Support Vector Machines (SVMs) and Artificial
Neural Networks (ANNs) to diagnose eyesight related problems for the people who
have problems in their vision. Artificial intelligence in Medicine (AIM) field
emerged in the early 1970’s in response to several simultaneous
needs, opportunities and interests. An
increased demand for high quality medical services coupled with the explosive
growth of medical knowledge has led to the usage of computer program that could
be used to assist physicians and other
eye health care providers in
discharging their clinical roles in diagnosis, therapy and prognosis (Javitt,
2003),.
Recently, Support Vector Machines have
been used in a range of problems including bioinformatics (Yu, et all 2003)
text categorization (Sebled et all 2000), classification and pattern
recognition. The support vector machine is a method for dividing a feature
space using an optimized hyper plane, whereas Artificial Neural networks have
been successfully applied to problems in pattern classification, pattern
matching, function approximation, optimization and associative Memories (Luger,
G.F., 2004). In Artificial Neural Networks the nonlinearity of transfer
function gives the network capability to emulate nonlinear mapping properties.
In this research a feedback net mechanism has been used.
1.2
STATEMENT OF THE PROBLEM
Although humans are wise enough to
learn about the body, its defects and how to implement solutions to them, our
knowledge is greatly limited. Accuracy and speed of humans are always low.
There are always mistakes especially when it comes to delicate parts of the
body like the eyes.
Myopia and presbyopia which is short
and long sightedness respectively has been in existence even before the
invention of computers. Early detection and solution to it has also been a
burden to humans due to limited knowledge and how slow we are. Some patients
who have not shown any symptoms of myopia and presbyopia but have it are told
to go home and relax due to we haven’t seen any physical known symptoms, hence
worsening the situation.
1.3
OBJECTIVE OF THE STUDY
The main objective of this study is to
design a computerized system for the diagnosis of myopia and presbyopia and to
proffer necessary treatment. Specific objectives include:
i. To design and build
an intelligent system in medicine to improve the efficiency of the current
method of eye defect diagnosis.
ii. To develop an expert tool
which incorporates decision support system characteristics to aid eye
specialist in early detection of myopia and presbyopia.
iii. A specifically designed
database, with the purpose of storing doctor and patient details, availability
information of pharmacy and blood bank, diagnostic center services, doctor
appointment schedule, diagnostic center services schedule, ER services
alongside access levels for the intended specific user types of the system as
the main aspects.
1.4 SCOPE OF THE STUDY
In order to achieve the objectives
stated above, the scope of the study is limited to the following:
i. The study involves conducting
research and analyzing the current system of operation in Obinwanne eye clinic
Nkpor and to suggest a computerized method of detecting and solving myopia and
presbyopia.
ii. The system involves
creating a knowledge base which incorporates all the known symptoms of the eye
defect in order to be able to detect and proffer solution as early as possible.
iii. The system is
designed using Java which gives it the ability to run on any operating system.
By determining the scope of the study,
the subsequent processes in developing the proposed system as the solution to
the research problem would be easier and has clearer defined boundary, which in
turn act as a guideline in developing the system.
1.5 JUSTIFICATION OF THE STUDY
Provision of healthcare services,
particularly when it comes to eyes is a largely neglected area in Nigeria. Any
meaningful improvement made in this field will therefore be beneficial for all
medical practitioners involved. Generally, people attempting to receive
services will be able to experience the advantages provided by a system that is
efficient, effective, easy to use and affordable. In order to minimize
suffering of the affected people and introduce efficiency in the system that
will provide greater utility, this project work was commenced.
1.6 LIMITATION OF THE STUDY
The following are some factors, which
acted as an impeachment or constraints to the progress of the project work;
a. Lack of Documented materials: It was difficult to start the project
initially because reference materials at my disposal are limited.
b. Financial constraint is another
factors that limited the researcher in owning out this project effectively.
c. Reluctance by the respondents in
giving information fearing that the information sought would be used to
intimidate them or print a negative image about them.
To counter this, I carried a pilot
study to establish the possible cause of non-compliance in filling the
questionnaires and adjusted the questionnaire accordingly.
Also I encouraged the respondents to
participate without holding back the information they might be having as the
research instruments would not bear their names.
1.7 ORGANIZATION OF THE STUDY
THIS project is structured as follows:
i.
Chapter one gives the general overview of myopia and presbyopia and how
effective computers can be in their early diagnosis.
ii.
Chapter two presents the review of related work carried out.
iii.
Chapter Three provides the methodology used in the research work,
analysis of the present system and solutions giving by the proposed system.
iv.
Chapter four gives the system specification and designs of the proposed
system
v.
Chapter five gives the conclusion and recommendation of the whole work
Format: MS Word
Chapters: 1 - 5
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Delivery: Email
Number of Pages: 65
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