Case report on: A comparative study of an emmetropic patient to a patient with Accommodative and Convergence Insufficiency
Mindanao Medical Foundation College
College of Optometry
Case report on: A comparative study of an emmetropic patient to a patient with Accommodative and Convergence Insufficiency
Abstract:
This case study aims to compare an emmetropic patient to a patient with accommodative insufficiency and convergence insufficiency based from the results of Binocular vision examination and Preliminary Optometric procedures.
Keywords: emmetropia, accommodative insufficiency, convergence insufficiency
INTRODUCTION:
Emmetropia is a normal refractive state of the eye, in which, with accommodation relaxed, parallel rays of light will converge exactly to a sharp focus on the retina. [1]. Accommodative insufficiency (AI) is a condition in which people find it difficult to focus on near objects, to an extent which is unusually poor for their age group. The condition can occur in young people and children, and it is not caused by a problem with the lens of the eye. This means that accommodative insufficiency is different from the disorder known as presbyopia, commonly seen in people over the age of 40. In presbyopia, the lens loses its elasticity and its ability to adapt for near focusing. People with accommodative insufficiency typically experience eye fatigue when carrying out close work for a sustained period. [2]
Common accommodative insufficiency symptoms include general tiredness when reading, headaches, blurred vision and eye strain. Loss of concentration and even motion sickness may occur. Individuals who spend a lot of time using computers, reading or carrying out detailed, close work are more prone to developing the symptoms associated with AI. Children with accommodative insufficiency may struggle with school work and may try to avoid reading whenever possible due to the discomfort they experience. Sometimes, children will assume that their experience is normal, with the result that their symptoms do not come to light until they reach adulthood.
College of Optometry
Case report on: A comparative study of an emmetropic patient to a patient with Accommodative and Convergence Insufficiency
Abstract:
This case study aims to compare an emmetropic patient to a patient with accommodative insufficiency and convergence insufficiency based from the results of Binocular vision examination and Preliminary Optometric procedures.
Keywords: emmetropia, accommodative insufficiency, convergence insufficiency
INTRODUCTION:
Emmetropia is a normal refractive state of the eye, in which, with accommodation relaxed, parallel rays of light will converge exactly to a sharp focus on the retina. [1]. Accommodative insufficiency (AI) is a condition in which people find it difficult to focus on near objects, to an extent which is unusually poor for their age group. The condition can occur in young people and children, and it is not caused by a problem with the lens of the eye. This means that accommodative insufficiency is different from the disorder known as presbyopia, commonly seen in people over the age of 40. In presbyopia, the lens loses its elasticity and its ability to adapt for near focusing. People with accommodative insufficiency typically experience eye fatigue when carrying out close work for a sustained period. [2]
Common accommodative insufficiency symptoms include general tiredness when reading, headaches, blurred vision and eye strain. Loss of concentration and even motion sickness may occur. Individuals who spend a lot of time using computers, reading or carrying out detailed, close work are more prone to developing the symptoms associated with AI. Children with accommodative insufficiency may struggle with school work and may try to avoid reading whenever possible due to the discomfort they experience. Sometimes, children will assume that their experience is normal, with the result that their symptoms do not come to light until they reach adulthood.