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Background
Peripheral Anterior Synechia also known PAS, is a condition where the peripheral iris attaches itself to the anterior surface of the eye’s structures, such as the cornea or anterior lens capsule. This condition is often linked to specific types of glaucoma, eye inflammation, or trauma.
Salzmann first documented PAS in 1914, and its presence can cause various visual disturbances and complications. The severity and location of the adhesions determine whether it obstructs the regular flow of fluid within the eye, which can result in heightened intraocular pressure.
Epidemiology
Anatomy
Pathophysiology
The pathophysiology of peripheral anterior synechia (PAS) involves the formation of adhesions between the peripheral iris and the anterior structures of the eye, typically the cornea or the anterior lens capsule.
Etiology
Inflammation of the uvea, also known as uveitis, can contribute to the formation of PAS. Inflammatory processes related to uveitis can cause adhesions to form between the iris and surrounding structures, including the lens or cornea.
Individuals with certain types of glaucoma, particularly chronic angle-closure glaucoma or angle-closure glaucoma, frequently exhibit PAS. The development of PAS can result from iris ischemia, which occurs when the iris receives insufficient blood supply. Ischemic eye conditions, such as carotid artery disease or ocular ischemic syndrome, can contribute to this.
Genetics
Prognostic Factors
Clinical History
CLINICAL HISTORY
Age Group: Peripheral Anterior Synechia (PAS) can occur in individuals of various age groups, but it is more commonly observed in older individuals. The risk of developing PAS increases with age, particularly in individuals over the age of 40.
Physical Examination
PHYSICAL EXAMINATION
Assessment of Vision acuity: The sharpness of vision is usually assessed using a Snellen chart or other standardized charts for evaluating visual acuity. This examination aids in identifying any visual impairment and determining the clarity of vision associated with PAS.
Age group
Associated comorbidity
Associated Comorbidity or Activity:
Associated activity
Acuity of presentation
Acuity of Presentation:
Differential Diagnoses
DIFFERENTIAL DIAGNOSIS
Laboratory Studies
Imaging Studies
Procedures
Histologic Findings
Staging
Treatment Paradigm
TREATMENT PARADIGM
Modification of Environment:
Administration of Pharmaceutical Agents with Drugs:
Intervention with a Procedure:
Phase of Management:
by Stage
by Modality
Chemotherapy
Radiation Therapy
Surgical Interventions
Hormone Therapy
Immunotherapy
Hyperthermia
Photodynamic Therapy
Stem Cell Transplant
Targeted Therapy
Palliative Care
Medication
Future Trends
Peripheral Anterior Synechia also known PAS, is a condition where the peripheral iris attaches itself to the anterior surface of the eye’s structures, such as the cornea or anterior lens capsule. This condition is often linked to specific types of glaucoma, eye inflammation, or trauma.
Salzmann first documented PAS in 1914, and its presence can cause various visual disturbances and complications. The severity and location of the adhesions determine whether it obstructs the regular flow of fluid within the eye, which can result in heightened intraocular pressure.
The pathophysiology of peripheral anterior synechia (PAS) involves the formation of adhesions between the peripheral iris and the anterior structures of the eye, typically the cornea or the anterior lens capsule.
Inflammation of the uvea, also known as uveitis, can contribute to the formation of PAS. Inflammatory processes related to uveitis can cause adhesions to form between the iris and surrounding structures, including the lens or cornea.
Individuals with certain types of glaucoma, particularly chronic angle-closure glaucoma or angle-closure glaucoma, frequently exhibit PAS. The development of PAS can result from iris ischemia, which occurs when the iris receives insufficient blood supply. Ischemic eye conditions, such as carotid artery disease or ocular ischemic syndrome, can contribute to this.
CLINICAL HISTORY
Age Group: Peripheral Anterior Synechia (PAS) can occur in individuals of various age groups, but it is more commonly observed in older individuals. The risk of developing PAS increases with age, particularly in individuals over the age of 40.
PHYSICAL EXAMINATION
Assessment of Vision acuity: The sharpness of vision is usually assessed using a Snellen chart or other standardized charts for evaluating visual acuity. This examination aids in identifying any visual impairment and determining the clarity of vision associated with PAS.
Associated Comorbidity or Activity:
Acuity of Presentation:
DIFFERENTIAL DIAGNOSIS
TREATMENT PARADIGM
Modification of Environment:
Administration of Pharmaceutical Agents with Drugs:
Intervention with a Procedure:
Phase of Management:
Peripheral Anterior Synechia also known PAS, is a condition where the peripheral iris attaches itself to the anterior surface of the eye’s structures, such as the cornea or anterior lens capsule. This condition is often linked to specific types of glaucoma, eye inflammation, or trauma.
Salzmann first documented PAS in 1914, and its presence can cause various visual disturbances and complications. The severity and location of the adhesions determine whether it obstructs the regular flow of fluid within the eye, which can result in heightened intraocular pressure.
The pathophysiology of peripheral anterior synechia (PAS) involves the formation of adhesions between the peripheral iris and the anterior structures of the eye, typically the cornea or the anterior lens capsule.
Inflammation of the uvea, also known as uveitis, can contribute to the formation of PAS. Inflammatory processes related to uveitis can cause adhesions to form between the iris and surrounding structures, including the lens or cornea.
Individuals with certain types of glaucoma, particularly chronic angle-closure glaucoma or angle-closure glaucoma, frequently exhibit PAS. The development of PAS can result from iris ischemia, which occurs when the iris receives insufficient blood supply. Ischemic eye conditions, such as carotid artery disease or ocular ischemic syndrome, can contribute to this.
CLINICAL HISTORY
Age Group: Peripheral Anterior Synechia (PAS) can occur in individuals of various age groups, but it is more commonly observed in older individuals. The risk of developing PAS increases with age, particularly in individuals over the age of 40.
PHYSICAL EXAMINATION
Assessment of Vision acuity: The sharpness of vision is usually assessed using a Snellen chart or other standardized charts for evaluating visual acuity. This examination aids in identifying any visual impairment and determining the clarity of vision associated with PAS.
Associated Comorbidity or Activity:
Acuity of Presentation:
DIFFERENTIAL DIAGNOSIS
TREATMENT PARADIGM
Modification of Environment:
Administration of Pharmaceutical Agents with Drugs:
Intervention with a Procedure:
Phase of Management:

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