OPTOMETRISTS

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Descemet Membrane Detachment (DMD)Follow our IG account OPTOMETRISTS for more.Descemet Membrane Detachment (DMD) occurs ...
08/06/2026

Descemet Membrane Detachment (DMD)

Follow our IG account OPTOMETRISTS for more.

Descemet Membrane Detachment (DMD) occurs when Descemet's membrane and the corneal endothelium separate from the posterior corneal stroma. It is an uncommon but important cause of persistent corneal edema and reduced vision, particularly after intraocular surgery.

What is Descemet's Membrane?

• Basement membrane of the corneal endothelium
• Located between the corneal stroma and endothelial cells
• Provides structural support to the endothelium
• Essential for maintaining corneal clarity

Common Causes

• Cataract surgery
• Corneal transplantation procedures
• Glaucoma surgery
• Ocular trauma
• Deep anterior lamellar keratoplasty (DALK)
• Surgical instrument misplacement within the cornea

Signs

• Corneal edema
• Descemet membrane folds
• Corneal haze
• Reduced visual acuity
• Double anterior chamber appearance in severe cases
• Persistent postoperative corneal swelling

Symptoms

• Blurred vision
• Glare and halos
• Decreased contrast sensitivity
• Foreign body sensation
• Mild ocular discomfort

Diagnosis

• Slit-lamp biomicroscopy
• Anterior Segment OCT (AS-OCT)
• Ultrasound biomicroscopy in selected cases

AS-OCT Findings

• Detached hyperreflective Descemet membrane
• Membrane folds or scrolling
• Separation between stroma and Descemet membrane
• Assessment of detachment size and location

Classification

• Planar DMD – separation less than 1 mm
• Non-planar DMD – separation greater than 1 mm
• Peripheral DMD
• Central DMD
• Extensive DMD involving the visual axis

Management

• Observation for small peripheral detachments
• Intracameral air injection (Descemetopexy)
• Intracameral gas injection (SF₆ or C₃F₈)
• Appropriate postoperative positioning
• Repeat descemetopexy if required
• Corneal transplantation in advanced cases

Prognosis

• Excellent with early diagnosis and treatment
• Better outcomes when reattachment occurs promptly
• Delayed treatment may lead to permanent corneal decompensation and visual loss

Clinical Pearl

• Persistent corneal edema after cataract surgery should always raise suspicion for Descemet Membrane Detachment. AS-OCT is the most valuable tool for confirming the diagnosis and guiding treatment.

08/06/2026

Blepharitis is a common, chronic inflammation of the eyelids that typically affects both eyes along the edges where the eyelashes grow. It is usually caused by clogged oil glands or an overgrowth of bacteria on the eyelids, leading to redness, itching, and crusting.
Blepharitis Treatment
📸: Dr. Jalil | Oftalmólogos
🧼 Eyelid Hygiene

Daily cleansing of the eyelid margin with specific products or gentle cleansing

♨️ Warm Compresses

5–10 min, 1–2 times/day

👁️ Eyelid Massage

After applying heat, gently massage towards the eyelid margin

💧 Artificial Tears

Preferably preservative-free if tear production is frequent

🦠 Topical Antibiotic

Can be used in anterior blepharitis with a bacterial component

🔥 Anti-inflammatory

Short-course topical corticosteroid in selected cases

💊 Oral Antibiotic

A 48-year-old woman with no known systemic disease presented with sudden, painless vision loss in her left eye.📸 Based o...
08/06/2026

A 48-year-old woman with no known systemic disease presented with sudden, painless vision loss in her left eye.
📸 Based on these fundus photographs, what is your most likely diagnosis?
💭 Share your thoughts and differential diagnosis in the comments!
📸: ophthagram.thrace

Large segment of excised iris following routine phacoemulsification cataract surgery.Follow our IG account OPTOMETRISTS ...
08/06/2026

Large segment of excised iris following routine phacoemulsification cataract surgery.

Follow our IG account OPTOMETRISTS for more. 📸: EyeSpyFundi

The iris acts as the eye’s natural diaphragm, regulating the amount of light entering the eye while also contributing to depth of focus and reducing higher-order aberrations. Extensive iris loss can result in a fixed, irregular pupil with symptoms including severe glare, photophobia, reduced contrast sensitivity, monocular diplopia, and dysphotopsia.

Management depends on the extent of tissue loss and symptom burden. Mild cases may be managed conservatively with tinted spectacles or coloured contact lenses. More symptomatic patients may benefit from surgical intervention, including pupilloplasty if sufficient iris tissue remains, or implantation of a prosthetic/artificial iris, either as a standalone procedure or combined with secondary intraocular lens surgery in selected cases. 💡

Interpretation of Red Reflex Findings: A Guide to Common Ocular AbnormalitiesFollow our IG account OPTOMETRISTS for more...
08/05/2026

Interpretation of Red Reflex Findings: A Guide to Common Ocular Abnormalities

Follow our IG account OPTOMETRISTS for more.

The red reflex is the reddish-orange reflection observed from the retina when light is directed into the eye. It is one of the simplest yet most valuable screening tests in optometry and ophthalmology, helping detect refractive errors, media opacities, retinal abnormalities, and ocular misalignment.

What Is the Red Reflex?

The red reflex occurs when light from an ophthalmoscope or retinoscope enters the eye, reflects from the retina, and returns through the pupil.

A normal reflex should be:

• Bright
• Symmetrical in both eyes
• Uniform in color and intensity
• Free from dark spots or white reflections

Why Is Red Reflex Testing Important?

Red reflex assessment can help identify:

• Significant refractive errors
• Anisometropia (unequal refractive error between eyes)
• Cataracts
• Corneal opacities
• Vitreous opacities
• Retinal abnormalities
• Strabismus (ocular misalignment)
• Retinoblastoma (especially in children)

Common Red Reflex Findings

A. Normal Red Reflex

• Equal brightness in both eyes
• Symmetrical appearance
• Indicates clear ocular media and normal alignment

B. Asymmetric Red Reflex

• One eye appears brighter or darker than the other
• May indicate anisometropia or unequal refractive status
• Can be associated with amblyopia risk in children

C. Absent or Dull Red Reflex

• Reduced or missing retinal glow
• Commonly caused by cataracts or dense media opacities
• Requires comprehensive ocular examination

D. Dark Shadow Within the Reflex

• May result from corneal scars, foreign bodies, lens opacities, or other media abnormalities
• The shadow may shift with eye or examiner movement

E. Unequal Reflex Due to Ocular Misalignment

• Often observed in strabismus
• Reflexes appear displaced or differ in brightness between eyes
• Useful for pediatric vision screening

Clinical Applications

Pediatric Eye Screening

• Detection of congenital cataracts
• Early identification of retinoblastoma
• Screening for amblyogenic factors

Refractive Assessment

• Quick identification of significant ametropia
• Useful before detailed refraction

Ocular Health Evaluation

• Assessment of lens transparency
• Detection of vitreous and retinal abnormalities

When Should Referral Be Considered?

Immediate referral is recommended when:

• White reflex (leukocoria) is observed
• Reflex is absent in one or both eyes
• Significant asymmetry is present
• Media opacity is suspected
• Retinal pathology cannot be excluded

Key Takeaway

The red reflex test is a rapid, non-invasive, and highly effective screening tool. A bright, symmetrical red reflex generally indicates healthy ocular media and retinal reflection, whereas asymmetry, dark shadows, diminished reflexes, or leukocoria warrant further investigation. Early detection through red reflex examination can prevent vision loss and, in some cases, save lives.

A normal red reflex is reassuring—an abnormal red reflex should never be ignored.

A 13-year-old boy presented with poor vision in the right eye since early childhood and esotropia noted at around 3 year...
08/05/2026

A 13-year-old boy presented with poor vision in the right eye since early childhood and esotropia noted at around 3 years of age. The right eye was not microphthalmic, with an axial length of 25.90 mm. Anterior-segment photography revealed tree-like vessels in the corneal stroma

(A). Fundus examination, with limited image clarity likely due to vitreous abnormalities, showed a fibrovascular membrane anterior to the optic disc and peripapillary chorioretinal atrophy
(B). Corneal fluorescein angiography demonstrated filling of these vessels beginning approximately 15 seconds after intravenous injection of fluorescein sodium, without leakage
(C). Ultrasound biomicroscopy localized the vessels to the deep corneal stroma
(D). These findings suggest anomalous corneal vessels in association with persistent fetal vasculature, distinct from typical corneal neovascularization.

From “Tree-like Corneal Anomalous Vessels in a Patient with Persistent Fetal Vasculature” by Yaling Liu, PhD, Jiannan Tang, PhD, Guoming Zhang, PhD. Published by Ophthalmology online on April 28, 2026.

08/05/2026

What is LASIK?

Lasik is technically just a computer using a laser to politely ask your cornea to behave.🙂🤣

What would be the best possible diagnosis?Follow our IG account OPTOMETRISTS for more. 📸: Intetional Academy Of Ophthalm...
08/05/2026

What would be the best possible diagnosis?

Follow our IG account OPTOMETRISTS for more. 📸: Intetional Academy Of Ophthalmology

Differential diagnoses:

(A) Papilledema – Bilateral optic disc edema due to raised intracranial pressure, with blurred disc margins, hyperemia, hemorrhages, and obscuration of vessels.

(B) Anterior Ischemic Optic Neuropathy (AION) – Swollen optic disc with peripapillary hemorrhages, typically associated with acute vision loss.

(C) Neuroretinitis – Optic disc edema often accompanied by a macular star and inflammatory etiology.

(D) Optic Disc Drusen (Pseudopapilledema) – Elevated optic nerve head mimicking disc edema without true swelling.

👇 Most likely diagnosis?

Post-fever retinitisFollow our IG account OPTOMETRISTS Case by: Dr Vedant Gambhir cc: Retina RocksThis 31YO female prese...
08/05/2026

Post-fever retinitis

Follow our IG account OPTOMETRISTS Case by: Dr Vedant Gambhir cc: Retina Rocks

This 31YO female presented with 1 week of decreased vision in her right eye following a febrile illness. Vision was 20/200 OD and 20/20 in her normal OS.

Color photography shows opaque, white inner and deep retinal whitening centered in the superonasal macula (yellow arrow), with surrounding subretinal fluid extending into the temporal and inferior macula. A lipid star radiates superiorly and nasally from the foveal center (green arrow). OCT scanning confirms a highly elevated serous detachment (red asterisk).

An extensive infectious workup was negative for common bacterial, viral, and parasitic etiologies. Given the history of antecedent fever and characteristic retinal findings, a diagnosis of post-fever (epidemic) retinitis was favored. She was treated with oral corticosteroids and doxycycline. At follow-up, visual acuity improved dramatically from 20/200 to 20/30. The retinitis and fluid resolved with increasing macular lipid.

Epidemic (post-fever) retinitis is an infectious or para-infectious entity that develops in immunocompetent individuals several weeks following a bacterial, viral, or protozoal infection. Causes include Dengue, Rickettsiosis, West Nile, Leptospirosis, Chikungunya, Typhoid, and Ebola. Serologic workup is negative in about 60% of cases (Kawali et al, Indian J Ophthalmol 2020;68:1916-1919), due to patients often presenting when acute-phase serologies are difficult to interpret, and viremia has resolved; limitations of available serologic testing; heterogeneous and overlapping etiologies; and a potential immune-mediated response.

Patients present with sudden, painless vision loss. Fundus findings include unilateral or bilateral unifocal or multifocal patches of retinitis with possible nerve involvement, serous macular detachment, and vasculitis or frosted branch angiitis. A macular lipid star in post-fever retinitis is uncommon, found in only 3.3% of affected eyes in rickettsial retinitis (the best-studied cause).

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