Recurrent corneal erosion (RCE) is an ocular condition in which the corneal epithelium, the cornea's outermost layer, breaks down or sloughs off repeatedly. This condition causes severe eye pain, redness, tearing, and light sensitivity, which have a significant impact...
What is a Radiation Cataract?
Radiation cataract is a type of cataract caused by exposure to ionizing radiation, which can come from a variety of sources, including medical treatments (radiotherapy), occupational exposure, or environmental radiation. A cataract is a clouding...
Purtscher's retinopathy is a rare but serious condition affecting the retina, the light-sensitive layer in the back of the eye. It is defined by sudden vision loss following trauma, particularly head or chest injuries, but it can also be...
Punctate Inner Choroidopathy (PIC) is a rare inflammatory eye condition that affects mostly young, myopic (nearsighted) women. These small, yellow-white lesions in the inner choroid can cause significant visual disturbances if not treated. The choroid is a vascular layer...
What is Punctal Stenosis?
Punctal stenosis is an ocular condition defined by the narrowing or complete blockage of the lacrimal puncta, which are small openings on the eyelid margins near the nose that allow tears to drain from the eye's...
Ptosis, or blepharoptosis, is a condition in which the upper eyelid droops. This drooping can occur in one or both eyes and can affect people of any age. Ptosis can be congenital (present at birth) or acquired later in...
What is Pterygium?
Pterygium is a benign growth of the conjunctiva, the clear tissue that lines the inside of the eyelids and protects the white part of the eye. This growth spreads to the cornea, the transparent front part of...
Pseudophakia refers to the condition of having an artificial intraocular lens (IOL) implanted in the eye, usually following cataract surgery. Cataracts, a common age-related eye condition, cause clouding of the natural lens, resulting in decreased vision quality. To restore...
What is PseudoPapilledema?
Pseudopapilledema is a condition characterized by the appearance of optic disc swelling that resembles true papilledema but does not cause increased intracranial pressure. Unlike papilledema, which can indicate potentially fatal conditions such as brain tumors or intracranial...
What is Pseudo-exfoliation Glaucoma?
Pseudoexfoliation glaucoma (PXG) is a type of secondary open-angle glaucoma caused by the buildup of pseudoexfoliative material on the lens, iris, and other structures of the eye. This condition is part of a larger syndrome known...
Proliferative vitreoretinopathy (PVR) is a serious complication that can develop after retinal detachment surgery, ocular trauma, or other retinal procedures. It involves the formation of membranes on both surfaces of the retina, which contract and cause the retina to...
What is progressive supranuclear palsy?
Progressive Supranuclear Palsy (PSP) is a rare degenerative neurological disorder that causes gradual deterioration of specific brain regions. PSP primarily impacts movement, balance, vision, speech, and swallowing. Supranuclear ophthalmoplegia, or difficulty controlling eye movements, is...
Our eyes, delicate and essential organs, are our windows to the world, allowing us to experience and navigate our surroundings. Yet, they are also highly vulnerable to infections, which can lead to discomfort, pain, and even long-term vision problems...
Smoking is widely recognized for its devastating effects on the lungs and heart, but its impact on eye health is often overlooked. For those who smoke, the potential damage goes beyond respiratory and cardiovascular issues—it also extends to vision....
In today's fast-paced world, our eyes are under constant assault from a variety of sources. Beyond the well-known culprit of digital screens, our modern lifestyle presents a myriad of challenges to eye health. The air we breathe, laden with...
Primary intraocular lymphoma (PIOL) is a rare and aggressive cancer that develops within the eye. It is a subtype of primary central nervous system lymphoma (PCNSL) that mostly affects the retina, vitreous, or optic nerve head. PIOL is most...
Primary congenital glaucoma (PCG) is a rare but severe type of glaucoma that appears at birth or develops soon after. It is distinguished by abnormal development of the eye's drainage system, specifically the trabecular meshwork and Schlemm's canal, which...
What is Primary Acquired Nasal Duct Obstruction?
Primary Acquired Nasolacrimal Duct Obstruction (PANDO) is a condition characterized by a blockage in the nasolacrimal duct, which drains tears from the eye into the nasal cavity. This obstruction can cause excessive tearing...
Presbyopia is a common age-related condition that impairs the eye's ability to focus on nearby objects. Presbyopia, which typically appears around the age of 40, is caused by the gradual hardening of the eye's natural lens and the weakening...
Post-surgical glaucoma, also known as secondary glaucoma after ocular surgery, is a condition characterized by elevated intraocular pressure (IOP) that develops as a result of eye surgeries such as cataract extraction, corneal transplantation, or vitreoretinal procedures. If not treated...
What is posterior uveitis?
Posterior uveitis is an inflammatory condition that affects the choroid, retina, and optic nerve head. This condition is part of a larger group of diseases known as uveitis, which is defined by inflammation of the uveal...
A posterior subcapsular cataract (PSC) is a type of cataract that develops at the back of the lens, immediately in front of the posterior capsule. This specific location has a significant impact on vision, often more than other types...
Posterior scleritis is a rare inflammatory condition that affects the posterior segment of the sclera, the eyeball's white, fibrous outer layer. Unlike anterior scleritis, which affects the front part of the sclera and is more visible, posterior scleritis affects...
What is Polychromatic Cataract?
Polychromatic cataract is a rare but intriguing type of cataract in which multiple colors appear within the lens opacity. Polychromatic cataracts, as opposed to typical cataracts, which usually appear as a cloudy or opaque area within...
Pleomorphic adenoma, also known as benign mixed tumor, is the most common benign neoplasm in the lacrimal gland. The lacrimal gland, located in the upper outer region of the orbit, produces tears to lubricate and protect the eye. Pleomorphic...
Maintaining good vision is essential to our daily lives, yet many of us take our eye health for granted until problems arise. With the increasing prevalence of screen time and the aging population, concerns about preserving eyesight are more...
In our increasingly hectic lives, stress has become an almost inevitable part of the daily routine. Whether it’s work deadlines, family responsibilities, or unexpected challenges, stress can creep into every aspect of life. While many people are aware of...
Vision is one of the most vital senses, yet its care is often overlooked until problems arise. While genetics and age play significant roles in eye health, the impact of nutrition is equally critical. What you eat directly affects...
What is Pinguecula?
Pinguecula is a common, harmless ocular condition characterized by a yellowish, slightly raised thickening of the conjunctiva, the clear tissue that covers the white part of the eye and the inner surface of the eyelid. This lesion...
Pigmentary glaucoma is a type of secondary open-angle glaucoma defined by the dispersion of pigment granules within the eye, which can obstruct the drainage system (trabecular meshwork) and cause increased intraocular pressure (IOP). This high pressure can damage the...
