Write a whole case with history chief complain examination
Reading File
Finding Sources
Reading File
Finding Sources
Reading File
Finding Sources
I now have enough information from the textbooks to write a complete, well-structured presbyopia case. Here it is:
4. PRESBYOPIA — Complete Clinical Case
Patient Profile
A 45-year-old male, resident of Patan, teacher by occupation, presents to the Outpatient Department of Ophthalmology.
Chief Complaint (C/C)
Bilateral gradual painless diminution of vision for near work × 6 months.
History of Presenting Illness (HPI)
The patient was apparently well 6 months ago when he began to notice progressive difficulty in reading small print, threading a needle, and doing close work. He finds himself holding books, newspapers, and his mobile phone at arm's length to see clearly. Symptoms are more prominent in dim light and at the end of the day. He has to make extra effort while reading, which leads to eyestrain and mild frontal headache after prolonged near work. There is no redness, watering, or photophobia. Distance vision remains unaffected.
History
| History | Detail |
|---|---|
| Onset | Gradual, insidious |
| Duration | 6 months |
| Progression | Slowly progressive |
| Laterality | Bilateral |
| H/O Glasses | No previous spectacles for distance or near |
| H/O Trauma to Eye | Nil |
| H/O Surgery | Nil |
| H/O Similar Complaints | Nil in past |
| H/O Discharge / Watering | Nil |
| Systemic Illness | No known diabetes, hypertension, or thyroid disease (NAD) |
| Drug History | No medications |
| Addiction | Nil (No tobacco, alcohol, or drug use) |
| Family History | Non-contributory |
General Examination
- General condition: Good
- Conscious, cooperative, well-oriented to time, place, and person
- No pallor, icterus, cyanosis, clubbing, lymphadenopathy, or edema
Local (Ocular) Examination
Visual Acuity (Unaided)
| Right Eye (RE) | Left Eye (LE) | |
|---|---|---|
| Distance VA | 6/6 | 6/6 |
| Near VA | N/12 | N/12 |
(Normal distance acuity with reduced near acuity — classic presbyopia pattern)
On Torch (Pen-torch) Examination
| Structure | Right Eye (RE) | Left Eye (LE) |
|---|---|---|
| Lids | Normal | Normal |
| Sclera | Normal (white) | Normal (white) |
| Cornea | Clear | Clear |
| Anterior Chamber (A/C) | ACND (Adequate depth, no cells/flare) | ACND |
| Iris | Normal pattern and color | Normal |
| Pupil | NS R→L (Normal size, Reacting to Light — direct and consensual) | NS R→L |
| Lens | Clear | Clear |
Extraocular Movements (EM)
Full in all directions of gaze — bilateral.
Cover Test (CT)
Orthophoria — no manifest deviation.
Digital Tension (DT)
Normal in both eyes (Tn) — no clinical evidence of raised intraocular pressure.
Diagnosis
Presbyopia — Bilateral
(Age-related physiological loss of accommodation due to progressive hardening and reduced elasticity of the crystalline lens, resulting in inability to focus on near objects.)
Basis of Diagnosis
| Finding | Significance |
|---|---|
| Age 45 years | Peak onset age for presbyopia (mid-40s) |
| Bilateral gradual painless diminution of near vision | Classic symptom |
| Teacher by occupation | Demands prolonged near work — symptoms aggravated |
| Distance VA 6/6 OU | Rules out myopia, amblyopia |
| Near VA N/12 OU | Reduced near acuity confirming near-point recession |
| Clear lens bilaterally | Rules out cataract as cause |
| No systemic illness | Excludes secondary causes (diabetic presbyopia) |
| All other anterior segment findings: Normal | No associated anterior segment pathology |
Investigations
- Near point measurement (using RAF ruler): Expected to be beyond 33 cm (arm's length), confirming reduced amplitude of accommodation
- Refraction (Subjective / Objective): Distance refraction — emmetropic; near addition required
- Slit-lamp biomicroscopy: To confirm lens clarity and rule out early nuclear sclerosis
- Fundoscopy: To rule out associated macular pathology
Management
Optical Correction (Reading Glasses)
Near addition (Add) is calculated based on age and amplitude of accommodation:
| Age | Expected Add |
|---|---|
| 40 years | +1.00 DS |
| 45 years | +1.50 DS |
| 50 years | +2.00 DS |
| 55 years | +2.50 DS |
| 60+ years | +3.00 DS |
For this patient (45 years): Near addition of +1.50 D OU is prescribed for reading spectacles.
Since distance vision is normal (emmetropic), simple reading glasses of +1.50 DS OU are prescribed, to be used for near work only.
Alternatives:
- Bifocal glasses — upper segment for distance, lower for near
- Progressive addition lenses (PALs) — cosmetically preferred; smooth transition from distance to near without visible line
- Contact lenses with monovision — one eye corrected for distance, fellow eye for near
Counseling
- Explain that presbyopia is a normal, age-related, physiological process — not a disease
- Near addition will need to be increased every 2–3 years as the condition progresses
- Adequate illumination during near work reduces symptoms
- Reassurance: distance vision will not be affected by reading glasses
Prognosis
- Good for near vision with appropriate correction
- Condition is progressive until approximately age 60, after which accommodation is near-zero and the required add stabilizes at +3.00 D
— Kanski's Clinical Ophthalmology: A Systematic Approach, 10th Ed. | Harrison's Principles of Internal Medicine, 22E | Ganong's Review of Medical Physiology, 26th Ed.
This is a shared conversation. Sign in to Orris to start your own chat.