Cataract surgical coverage among people with pin hole visual acuity < 3/60, <6/60 and <6/18 were 94.6%, 91% and 76.9% respectively. However cataract surgical coverage among eyes having cataract and pin hole visual acuity as < 3/60, <6/60 and <6/18 were 84.9%, 79.7% and 63.1% respectively.
Most of cataract surgeries in Howrah, West Bengal 96.2% were surgeries with intra-ocular lens implantation.
Majority visual outcome after cataract surgery were very good, 65.2% people had presenting visual acuity >6/12 in operated eye. However 16.1% had visual acuity <6/18 in operated eye and 6.7% had PVA < 6/60. Among those whose visual acuity was better than 6/60, the most important cause was Uncorrected refractive error 39.1%. Those patients whose post-operative PVA < 6/60, the most important cause was existing pre-operative Ocular comorbidity 59.1% Other causes of poor outcomes were Surgical complications 18.4%.
Out of all people having bilateral pinhole visual acuity <3/60 due to cataract, in people aged ≥ 50 years most important barriers for cataract surgery were Local reason (30.0%), Fear (20.0%), Need not felt (20.0%), Cost (15.0%) and Cannot access treatment (15.0%).
Presenting visual acuity < 3/60 in better eye
Presenting visual acuity < 6/60 – 3/60 in better eye
Presenting visual acuity < 6/18 – 6/60 in better eye
Presenting visual acuity < 6/12 – 6/18 in better eye
Presenting visual acuity <6/18-3/60 in better eye
Presenting visual acuity < 6/18 in better eye
A person with impairment of visual functioning even after treatment and/or standard refractive correction, and a visual acuity of less than 6/18 to light perception, or a visual field of less than 10 degree from the point of fixation.
Cataract Surgical Coverage (Person) indicates how many persons received cataract surgery (one or both eyes) among all who were bilaterally pinhole blind due to cataract.
The numerator includes persons with one operated and one pinhole blind eye and persons with bilateral (pseudo) aphakia. The denominator includes the numerator, plus persons bilaterally pinhole blind due to cataract. Besides this, the indicator can also be calculated separately for PinVA <6/60 and <6/18.
Cataract Surgical Coverage (Eye) measures the proportions of eyes pinhole blind due to cataract, which have been operated so far.
The numerator includes all (pseudo) aphakic eyes. The denominator includes the numerator, plus eyes pinhole blind due to cataract. Besides this, the indicator can also be calculated separately for PinVA <6/60 and <6/18.
| Males (%) | Females (%) | Total (%) |
|
|---|---|---|---|
| Cataract Surgical Coverage (persons) - percentage |
|||
| Pin hole VA < 3/60 | 99.1 | 90.7 | 94.6 |
| Pin hole VA < 6/60 | 93.9 | 88.4 | 91.0 |
| Pin hole VA < 6/18 | 78.5 | 75.3 | 76.9 |
| Cataract Surgical Coverage (eyes) - percentage |
|||
| Pin hole VA < 3/60 | 87.5 | 82.5 | 84.9 |
| Pin hole VA < 6/60 | 81.0 | 78.4 | 79.7 |
| Pin hole VA < 6/18 | 62.8 | 63.4 | 63.1 |
| Males (%) | Females (%) | Total (%) |
|
|---|---|---|---|
| Need not felt | 0.0 | 21.1 | 20.0 |
| Fear | 0.0 | 21.1 | 20.0 |
| Cost | 100.0 | 10.5 | 15.0 |
| Treatment denied by provider | 0.0 | 0.0 | 0.0 |
| Unaware treatment is possible | 0.0 | 0.0 | 0.0 |
| Cannot access treatment | 0.0 | 15.8 | 15.0 |
| Local reason | 0.0 | 31.5 | 30.0 |